From owner-linux-mips@oss.sgi.com Sat Jul  1 16:23:23 2000
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From:   "Jay Carlson" <nop@nop.com>
To:     "Ian Chilton" <mailinglist@ichilton.co.uk>,
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Subject: Re: Status reports?
Date:   Sat, 1 Jul 2000 19:23:18 -0400
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"Ian Chilton" <mailinglist@ichilton.co.uk> writes:

> * Not everything that happens on IRC is appropriate for the mailing list,
> otherwise it would be a very high volume list.

Yeah.

> * The problem is, most of the people on the port and in #mipslinux are
> developers, who are working on the ports, but have no time for
> documentation.  Which is best, a port that is dead with loads of
> documentation, or an active / up-to-date / working port with little
> documentation.

There's a need for high quality documentation, but I think there's a greater
need for just little status reports.  Writing good documents is *hard*, but
just little one-paragraph summaries, like a project diary, would be a
wonderful service to the community.

OTOH, although the current situation annoys me a little, it would annoy me a
lot more if upstream work on mipslinux stopped.  :-)  So please don't take
anything this list says about this as a demand.

> I agree that the documentation is sparce, and see the above issues. That
is
> why, I am *thinking* of and suggesting to some of the guys that I, at
least
> for now, maintain a site with
> * News from #mipslinux
> * Links to current resources
> * Possibly some documentation

Doesn't have to be very heavyweight to be successful.

> If you have any chance at all, I suggest you stop by #mipslinux at
> times....all you need is an internet connection and one of the many IRC
> clients...
>
> Details are:
> /server irc.openprojects.net         (port 6667)
> /join #mipslinux

I'll drop by soon.

Jay


From owner-linux-mips@oss.sgi.com Sun Jul  2 16:13:01 2000
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From:   Ralf Baechle <ralf@oss.sgi.com>
To:     Marc Esipovich <marc@mucom.co.il>
Cc:     linux-mips@oss.sgi.com
Subject: Re: NetBSD on O2 ;)
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On Fri, Jun 30, 2000 at 02:52:51PM -0200, Marc Esipovich wrote:

>  I just noticed this on Slashdot:
> 
> NetBSD have added another platform to their supported hardware
> list. As the NetBSD/sgimips and announcement pages say,
> NetBSD/sgimips is now stable enough to run multi-user, making
> NetBSD the first OpenSource OS to run on the SGI O2. Currently it's
> known to work on the R5000 CPU, R10K and R12K are untested due to
> lack of hardware. 
> 
> http://www.netbsd.org/Ports/sgimips/
> 
>  From my understanding R1[02]K do have their issues with cache coherency,
> this is a big step forward, it wouldn't be long before we see NetBSD and
> probably soon-to-follow Linux on O2 with all CPU configurations.

Cache coherency is the trivial part; it's already been solved for other
MIPS ports.  The big problem is the interaction of speculative stores
with cache coherency.  It's not a CPU bug but more the R10000 being used
in an environment it was not intended to be used in.  The workaround is
rather complex and requires compiler modifications.  The R12000 is
better on this, it has the option to disable speculative stores which
makes a port of an OS easy.

  Ralf

From owner-linux-mips@oss.sgi.com Mon Jul  3 06:50:55 2000
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Subject: Re: errno assignment in _syscall macros and glibc
To:     nop@nop.com (Jay Carlson)
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Cc:     ralf@oss.sgi.com (Ralf Baechle),
        alan@lxorguk.ukuu.org.uk (Alan Cox), aj@suse.de (Andreas Jaeger),
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> Does newlib work under Linux?  I thought it was missing (for example) t=
> he
> syscalls, and generally needed work to be ported to Linux.  I'm interes=

You would need to add the syscalls yes. Also the Cygnus^WRed Hat folks tell
me that the eCos libc is built from and replaces newlib.

> *BSD libc has been suggested by a few people.

Good idea - how does it compare ?

> Jay
> 
> 


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Subject: FPU Control Word: Initial Value looks wrong
From:   Andreas Jaeger <aj@suse.de>
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Porting glibc to MIPS I noticed that the initial contents of the fpu
control word doesn't seem to be right (at least on the machines I've
tried - one with a normal MIPS 2.2.13 and one with 2.2.15 and the
MIPS/Algorithmics patches (including FPU emulator).

The appended small test program should return a 0 (that's the desired
value by glibc for full ISO C99 support) - but it seems to be set to
0x600.

Could the kernel folks fix this, please?  I grepped through the sources
and didn't find a place where the FPU gets initialised.:-(

Thanks,
Andreas

P.S. Here's the test program:
#include <stdlib.h>

#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw) : )
#define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw))

int
main (void)
{
  int fpucw;

  _FPU_GETCW (fpucw);

  printf ("%x %d\n", fpucw, fpucw);

  return 0;
}


-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de

From owner-linux-mips@oss.sgi.com Mon Jul  3 15:32:50 2000
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Subject: Re: FPU Control Word: Initial Value looks wrong
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On Mon, Jul 03, 2000 at 07:30:42PM +0200, Andreas Jaeger wrote:

> Porting glibc to MIPS I noticed that the initial contents of the fpu
> control word doesn't seem to be right (at least on the machines I've
> tried - one with a normal MIPS 2.2.13 and one with 2.2.15 and the
> MIPS/Algorithmics patches (including FPU emulator).

> The appended small test program should return a 0 (that's the desired
> value by glibc for full ISO C99 support) - but it seems to be set to
> 0x600.
> 
> Could the kernel folks fix this, please?  I grepped through the sources
> and didn't find a place where the FPU gets initialised.:-(

Surprise - the kernel initializes this to zero and the libc should do
the same afair.  Did this change?

I tried your program on a Indy running 2.4.0-test2 + glibc 2.2 and it was
printing ``0 0''.

Could you check the source of your kernel for the value it's writing to
fcr31?  That's the constant FPU_DEFAULT defined in arch/mips/kernel/
r4k_switch.S.  Some quite old kernel were using a different value but I
was actually assuming those versions have already died out.

  Ralf

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>>>>> Ralf Baechle writes:

Ralf> On Mon, Jul 03, 2000 at 07:30:42PM +0200, Andreas Jaeger wrote:
>> Porting glibc to MIPS I noticed that the initial contents of the fpu
>> control word doesn't seem to be right (at least on the machines I've
>> tried - one with a normal MIPS 2.2.13 and one with 2.2.15 and the
>> MIPS/Algorithmics patches (including FPU emulator).

>> The appended small test program should return a 0 (that's the desired
>> value by glibc for full ISO C99 support) - but it seems to be set to
>> 0x600.
>> 
>> Could the kernel folks fix this, please?  I grepped through the sources
>> and didn't find a place where the FPU gets initialised.:-(

Ralf> Surprise - the kernel initializes this to zero and the libc should do
Ralf> the same afair.  Did this change?

No, that's correct - but I don't get a zero.

Ralf> I tried your program on a Indy running 2.4.0-test2 + glibc 2.2 and it was
Ralf> printing ``0 0''.

Did you try it with a shared program?  Static programs always
initialize the FPU.  Could you run the program on other machines also?

Ralf> Could you check the source of your kernel for the value it's writing to
Ralf> fcr31?  That's the constant FPU_DEFAULT defined in arch/mips/kernel/
Ralf> r4k_switch.S.  Some quite old kernel were using a different value but I
Ralf> was actually assuming those versions have already died out.

The kernels I used have 0 as FPU_DEFAULT - but nevertheless the
returned value is wrong.  When is FPU_DEFAULT written to the FPU?

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de

From owner-linux-mips@oss.sgi.com Tue Jul  4 11:23:14 2000
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http://www.acheron-design.com/windowmaker.org-new/  <--that's the kind
of thing I was thinking largo could do for ya, just set it up, and let
you guys update it via web/php admin...

So you have a good idea what he can do...
http://www.acheron-design.com/leninmaker/  <--joke windowmaker one.

http://wm.current.nu/
his site.

If you want him to do a layout for the linux-mips page, just let me or
him (largo@current.nu) know, and we can get it set up (layout and
graphics), and all you will have to do is provide some content and
update the news and such through web interface.


Jay Carlson wrote:
> 
> "Ian Chilton" <mailinglist@ichilton.co.uk> writes:
> 
> > * Not everything that happens on IRC is appropriate for the mailing list,
> > otherwise it would be a very high volume list.
> 
> Yeah.
> 
> > * The problem is, most of the people on the port and in #mipslinux are
> > developers, who are working on the ports, but have no time for
> > documentation.  Which is best, a port that is dead with loads of
> > documentation, or an active / up-to-date / working port with little
> > documentation.
> 
> There's a need for high quality documentation, but I think there's a greater
> need for just little status reports.  Writing good documents is *hard*, but
> just little one-paragraph summaries, like a project diary, would be a
> wonderful service to the community.
> 
> OTOH, although the current situation annoys me a little, it would annoy me a
> lot more if upstream work on mipslinux stopped.  :-)  So please don't take
> anything this list says about this as a demand.
> 
> > I agree that the documentation is sparce, and see the above issues. That
> is
> > why, I am *thinking* of and suggesting to some of the guys that I, at
> least
> > for now, maintain a site with
> > * News from #mipslinux
> > * Links to current resources
> > * Possibly some documentation
> 
> Doesn't have to be very heavyweight to be successful.
> 
> > If you have any chance at all, I suggest you stop by #mipslinux at
> > times....all you need is an internet connection and one of the many IRC
> > clients...
> >
> > Details are:
> > /server irc.openprojects.net         (port 6667)
> > /join #mipslinux
> 
> I'll drop by soon.
> 
> Jay

From owner-linux-mips@oss.sgi.com Tue Jul  4 14:22:56 2000
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On Tue, Jul 04, 2000 at 07:27:53PM +0200, Harald Koerfgen wrote:

> > Log message:
> >       We have to clobber ``hi'' and ``lo'' in __udelay.  Nasty bug.
> 
> Unfortunately my compilers don't like it.
> 
> mipsel-linux-gcc: egcs-2.90.29 980515 (egcs-1.0.3 release) (rpm from oss):
> 
> timer.c: In function `sys_nanosleep':
> timer.c:848: fixed or forbidden register was spilled.
> This may be due to a compiler bug or to impossible asm
> statements or clauses.

I've commited a fix for this.  It only tackles the __udelay() functions
for mips and mips64 but not the other multu instruction in the
DECstation HZ_TO_STD function.  Can you take a look at this one?

  Ralf

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Subject: Re: FPU Control Word: Initial Value looks wrong
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On Tue, Jul 04, 2000 at 01:39:04PM +0200, Andreas Jaeger wrote:

> Ralf> I tried your program on a Indy running 2.4.0-test2 + glibc 2.2 and it was
> Ralf> printing ``0 0''.
> 
> Did you try it with a shared program?

Yes.

> Static programs always initialize the FPU.  Could you run the program on
> other machines also?

Will do.

> Ralf> Could you check the source of your kernel for the value it's writing to
> Ralf> fcr31?  That's the constant FPU_DEFAULT defined in arch/mips/kernel/
> Ralf> r4k_switch.S.  Some quite old kernel were using a different value but I
> Ralf> was actually assuming those versions have already died out.
> 
> The kernels I used have 0 as FPU_DEFAULT - but nevertheless the
> returned value is wrong.  When is FPU_DEFAULT written to the FPU?

We do lazy fp context switching.  So the kernel initializes the FPU for a
process at the moment when it attempts to use it for the first time.  It
does so by enabling the FPU in the status register, clearing all flags in
$fcr31 and setting all fp registers to a SNAN.

  Ralf

From owner-linux-mips@oss.sgi.com Tue Jul  4 18:13:47 2000
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Looking at the fcr31 bug I found some other bug which probably isn't causing
what you observe but is a bug anyway - fpu_control_t was a 16-bit type
but should be a 32-bit type.  Patch below.

Is _FPU_IEEE used at all and is it's definition right?

I asked more people to run your test program.  The result is that glibc
2.0.6 (both shared and static tried) and 2.2 print ``0 0'' while glibc
2.0.7 prints a non-zero value.

Can you check if the variable __fpu_control, is it's value non-zero?

  Ralf

2000-07-05  Ralf Baechle  <ralf@gnu.org>

	* sysdeps/mips/fpu_control.h: Make fpu_control_t a 32-bit type.

--- libc/sysdeps/mips/fpu_control.h.orig	Wed Jul  5 02:51:54 2000
+++ libc/sysdeps/mips/fpu_control.h	Wed Jul  5 02:52:58 2000
@@ -1,5 +1,5 @@
 /* FPU control word bits.  Mips version.
-   Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Olaf Flebbe and Ralf Baechle.
 
@@ -86,10 +86,10 @@
 #define _FPU_IEEE     0x00000F80
 
 /* Type of the control word.  */
-typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__)));
+typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__)));
 
 /* Macros for accessing the hardware control word.  */
-#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw) : )
+#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw))
 #define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw))
 
 /* Default control word set at startup.  */

From owner-linux-mips@oss.sgi.com Tue Jul  4 19:26:47 2000
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From:   Ralf Baechle <ralf@oss.sgi.com>
To:     linux-mips@oss.sgi.com, linux-mips@fnet.fr,
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I've uploaded new egcs 1.0.3a crosscompiler source and binary packages
for i386-linux hosts to oss.sgi.com.  This release fix a bug which was
preventing __attribute__((aligned(x))) from working for values of x larger
than 8.  Older releases of egcs 1.0.3a will no longer compile the current
CVS kernel; they'll abort when compiling kernel/sched.c.  The native
compilers are affected by the same bug but I don't have updated packages
yet.

  Ralf

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Hello,

The new "Unofficial Linux/MIPS Site" is now available.
Go to: http://www.linux-mips.org

More to come, but it's there, and there's plenty of links!   :-)


Thanks to:
Klaus Naumann		-->  Some of the content + counter
Richard Hartensveld	-->  Hosting / domain


Bye for Now,

Ian


                                \|||/ 
                                (o o)
 /---------------------------ooO-(_)-Ooo---------------------------\
 |  Ian Chilton     (IRC Nick - GadgetMan)     ian@ichilton.co.uk  |
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From owner-linux-mips@oss.sgi.com Wed Jul  5 08:46:31 2000
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>>>>> Ralf Baechle writes:

Ralf> Looking at the fcr31 bug I found some other bug which probably isn't causing
Ralf> what you observe but is a bug anyway - fpu_control_t was a 16-bit type
Ralf> but should be a 32-bit type.  Patch below.
Thanks, I've commited it.

Ralf> Is _FPU_IEEE used at all and is it's definition right?
It's nowhere used - but each architecture has it.  The value looks fine.

Ralf> I asked more people to run your test program.  The result is that glibc
Ralf> 2.0.6 (both shared and static tried) and 2.2 print ``0 0'' while glibc
Ralf> 2.0.7 prints a non-zero value.

OK, I'll investigate the kernels and glibc I'm running a bit more.

Thanks,
Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de

From owner-linux-mips@oss.sgi.com Wed Jul  5 11:24:51 2000
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On 04-Jul-00 Ralf Baechle wrote:
> I've commited a fix for this.  It only tackles the __udelay() functions
> for mips and mips64 but not the other multu instruction in the
> DECstation HZ_TO_STD function.  Can you take a look at this one?

Done.

-- 
Regards,
Harald

From owner-linux-mips@oss.sgi.com Wed Jul  5 17:28:54 2000
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From:   "Erik Niessen" <erik_niessen@hotmail.com>
To:     linux-mips@oss.sgi.com
Subject: Doing DMA with the ide-driver
Date:   Thu, 06 Jul 2000 02:28:24 CEST
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Hello,

I am trying to get an external ide-pci controller (CMD 646) working on an 
embedded mips board. The kernel-source is based on a 2.2.12 source tree.

The problem is doing DMA. I receive address (0x80ff0000) for my dmatable in 
the function ide_setup_dma (__get_free_pages). Then in ide_buildtable it 
sets up the dmatable. Address 0x80376000 and a count of 0x400 
(check_partition reads 2 sectors from the harddrive). These are all virtual 
addresses. For setting up the dmatable I use physical addresses. On the 
embedded board there is a 1:1 map of i/o bus to main memory so 
platform_mem_iobus_base is 0.

So after doing the DMA read, I read only zero's at address 0x80376000 and 
the kernel hangs. But the harddrive is ready and I can't find any errors. It 
seems that it writes the data to a different memory location. After 
searching the memory the data is written at address 0x80000000??  Is the 
memory manager somewhere in between???

The next thing I did was reserving a piece of physical memory for DMA and 
fill in the dmatable myself. So that it uses my piece of reserved memory. 
After I did this, the data was at the correct address and the kernel didn't 
crash. Is this the solution???

Anyone a clue?

Thanks,

	Erik

________________________________________________________________________
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From owner-linux-mips@oss.sgi.com Wed Jul  5 18:25:54 2000
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To:     Erik Niessen <erik_niessen@hotmail.com>
Cc:     linux-mips@oss.sgi.com
Subject: Re: Doing DMA with the ide-driver
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On Thu, Jul 06, 2000 at 02:28:24AM +0200, Erik Niessen wrote:

> I am trying to get an external ide-pci controller (CMD 646) working on an 
> embedded mips board. The kernel-source is based on a 2.2.12 source tree.
> 
> The problem is doing DMA. I receive address (0x80ff0000) for my dmatable in 
> the function ide_setup_dma (__get_free_pages). Then in ide_buildtable it 
> sets up the dmatable. Address 0x80376000 and a count of 0x400 
> (check_partition reads 2 sectors from the harddrive). These are all virtual 
> addresses. For setting up the dmatable I use physical addresses. On the 
> embedded board there is a 1:1 map of i/o bus to main memory so 
> platform_mem_iobus_base is 0.
> 
> So after doing the DMA read, I read only zero's at address 0x80376000 and 
> the kernel hangs. But the harddrive is ready and I can't find any errors. It 
> seems that it writes the data to a different memory location. After 
> searching the memory the data is written at address 0x80000000??  Is the 
> memory manager somewhere in between???
> 
> The next thing I did was reserving a piece of physical memory for DMA and 
> fill in the dmatable myself. So that it uses my piece of reserved memory. 
> After I did this, the data was at the correct address and the kernel didn't 
> crash. Is this the solution???

What you're observing can be explained by caches not being flushed properly.
What kernel versions are you using?

  Ralf

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Hi,

 first of all I wanted to know if this mailinglist is
alive at all.. and, if anyone have some status information
on the port to indigo2. I've got an Extreme which i'd love
running linux with X and GL (wishing)

Fredrik Rovik

From owner-linux-mips@oss.sgi.com Thu Jul  6 06:30:28 2000
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Date:   Thu, 6 Jul 2000 15:27:41 +0200
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        "Alive/indigo2 status" (Jul  6,  2:36pm)
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On Jul 6,  2:36pm, Fredrik.Rovik@sas.no wrote:
> Subject: Alive/indigo2 status
> Hi,
>
>  first of all I wanted to know if this mailinglist is
> alive at all..

Regarding the mailing list: You can find an updated archive on:

http://oss.sgi.com/mips/archive/

-Roald



-- 
    
---------------------------------------------------------------
| Company: SGI Norge A/S                                      |
| Email:   roald@sgi.com          Tlf:          +47 5163 4183 |
| Addr:    Luramyrveien 79        Mobil:        +47 909 33 903|
|          N-4313 Sandnes         VMail (SGI):  870-4679      |
|          NORWAY                 VMail(ext):   +47 6711 4679 |
---------------------------------------------------------------
Essential SGI Websites:
http://www.sgi.com/             SGI
http://www.sgi.no/              SGI Norge
http://support-europe.sgi.com/  Log calls, patches+overlays, ++
http://freeware.sgi.com/        Freeware - "ready-to-eat"
http://oss.sgi.com/mips/        Linux for SGI (Mips/Intel)
http://www.sgi.com/developers/  Developer Central
http://www.sgi.com/Products/Evaluation/   Evaluation Software

From owner-linux-mips@oss.sgi.com Thu Jul  6 09:12:18 2000
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On Thu, Jul 06, 2000 at 02:36:58PM +0200, Fredrik.Rovik@sas.no wrote:
> Hi,
> 
>  first of all I wanted to know if this mailinglist is
> alive at all.. and, if anyone have some status information
> on the port to indigo2. I've got an Extreme which i'd love
> running linux with X and GL (wishing)

Indigo2 Yes
Extreme No

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-5201-669912
     "If you're not having fun right now, you're wasting your time."


From owner-linux-mips@oss.sgi.com Thu Jul  6 10:13:08 2000
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I am currently upgrading my MIPS development board (Atlas) that contains
a R4Kc (jade core)
and version 2.2.12 of the Linux kernel to a 2.4.x series kernel.   I
believe the  libraries and applications
were built off of the hardhat distribution.  We are able to run the
2.4.x version of the kernel on the Atlas
board but are seeing problems with some of the executables.  I examined
the Changes file and am in the
process of upgrading the following binaries/libraries..

GNU C  2.7.2.3
binutils 2.9.1.0.22
util-linux 2.10g
modutils 2.3.0
e2fsprogs 1.18
pcmcia-cs 3.1.13
ppp 2.4.0b1

I am seeing problems with executables such as awk, groff, troff, etc.
Will I need to rebuild each of these
applications  against the new libraries to run or should they still
function after I have upgraded the previously
mentioned packages?  Are there mipsel version of these packages (either
source or binaries) available somewhere?
Any information would be greatly appreciated.

Jeff



--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jeff Harrell                    Work:  (801) 619-6104
Broadband Access group/TI
jharrell@ti.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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<html>
I am currently upgrading my MIPS development board (Atlas) that contains
a R4Kc (jade core)
<br>and version 2.2.12 of the Linux kernel to a 2.4.x series kernel.&nbsp;&nbsp;
I believe the&nbsp; libraries and applications
<br>were built off of the hardhat distribution.&nbsp; We are able to run
the 2.4.x version of the kernel on the Atlas
<br>board but are seeing problems with some of the executables.&nbsp; I
examined the Changes file and am in the
<br>process of upgrading the following binaries/libraries..
<p>GNU C&nbsp; 2.7.2.3
<br>binutils 2.9.1.0.22
<br>util-linux 2.10g
<br>modutils 2.3.0
<br>e2fsprogs 1.18
<br>pcmcia-cs 3.1.13
<br>ppp 2.4.0b1
<p>I am seeing problems with executables such as awk, groff, troff, etc.&nbsp;&nbsp;
Will I need to rebuild each of these
<br>applications&nbsp; against the new libraries to run or should they
still function after I have upgraded the previously
<br>mentioned packages?&nbsp; Are there mipsel version of these packages
(either source or binaries) available somewhere?
<br>Any information would be greatly appreciated.
<p>Jeff
<br>&nbsp;
<br>&nbsp;
<pre>--&nbsp;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jeff Harrell&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Work:&nbsp; (801) 619-6104&nbsp;
Broadband Access group/TI&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
jharrell@ti.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</pre>
</html>

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--------------8CD11C396949D39314900462--


From owner-linux-mips@oss.sgi.com Thu Jul  6 17:47:02 2000
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From:   Ralf Baechle <ralf@oss.sgi.com>
To:     Jeff Harrell <jharrell@ti.com>
Cc:     linux-mips@oss.sgi.com, bbrown@ti.com
Subject: Re: Question concerning necessary libraries for 2.4.x kernel upgrade
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On Thu, Jul 06, 2000 at 11:21:41AM -0600, Jeff Harrell wrote:

> I am currently upgrading my MIPS development board (Atlas) that contains
> a R4Kc (jade core)
> and version 2.2.12 of the Linux kernel to a 2.4.x series kernel.   I
> believe the  libraries and applications
> were built off of the hardhat distribution.  We are able to run the
> 2.4.x version of the kernel on the Atlas
> board but are seeing problems with some of the executables.  I examined
> the Changes file and am in the
> process of upgrading the following binaries/libraries..
> 
> GNU C  2.7.2.3

2.7.2.3 may work or not.  Most people are using egcs 1.0.3a, so I recommend
using that one.

> binutils 2.9.1.0.22

DON'T touch, stick with 2.8.1.

> util-linux 2.10g
> modutils 2.3.0

I have no reports about modutils 2.3.0.

> e2fsprogs 1.18
> pcmcia-cs 3.1.13
> ppp 2.4.0b1
> 
> I am seeing problems with executables such as awk, groff, troff, etc.
> Will I need to rebuild each of these
> applications  against the new libraries to run or should they still
> function after I have upgraded the previously
> mentioned packages?  Are there mipsel version of these packages (either
> source or binaries) available somewhere?

You can try the DECstation package (see howto) or get the src.rpm
packages from oss.sgi.com which has a preliminary RH 6.0 port.  The packages
should build for little endian also.

  Ralf

From owner-linux-mips@oss.sgi.com Fri Jul  7 05:31:41 2000
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whats the word on using CVS binutils and CVS gcc (2.96?) for 
compiling mips64?

john.c



From owner-linux-mips@oss.sgi.com Fri Jul  7 06:59:50 2000
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Date:   Fri, 7 Jul 2000 09:52:09 -0300
From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     linux-mips@oss.sgi.com
Subject: GDB question.
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I've noticed in the Hard Hat 5.1 and the Simple Linux distros that GDB is
lacking.  Is there a reason for that?  This is not a complaint, but more
an iquiry to find out if there's known problems before I go banging my
head against the wall trying to build something that won't for some
reason or the other.

I'm presently using egcs-1.1.2, binutils 2.9.5, BFD 000425, and
glibc-2.0.6 from Simple Linux 0.1 on an Indy.

Would appreciate any tips/tricks/caveats beforehand.

Thanks!

--

J. Scott Kasten
Email: jsk AT tetracon-eng DOT net

"The only future you have is the one
 you choose to make for yourself..."



From owner-linux-mips@oss.sgi.com Fri Jul  7 07:17:50 2000
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Date:   Fri, 7 Jul 2000 10:10:59 -0300
From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     linux-mips@oss.sgi.com
Subject: Kernel boot tips.
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I learned 3 slick booting tips for booting an Indy from disk without a
regular Linux boot loader that might be useful to some of the newbies.

First off, there are two ways to trick the prom into booting the kernel
image like the normal Irix kerenel from disk.  If you have an EFS or XFS
bootable file system on the drive, and have Irix up at some point, you can
put the linux kernel in the file system as /unix in place of an Irix
kernel.  When booting, sash will look for that particular file and
bootstrap it.  Another way to accomplish this trick if you don't want any
Irix partitions on your drive at all is to use the volume header itself.
Sash is located there, and the boot prom will load and execute sash as
part of the boot process.  Under Irix, you can use dvhtool to replace sash
with the linux kernel itself.  Then when the system tries to boot, the
prom will load "sash" like normal, but will end up boot straping the linux
kernel for you.  (I think this will require a coff image though.)

The third trick I learned will help those that cannot afford the spare
change to keep around extra SCSI drives so that they have a bootable Irix
image to use for accomplishing these feats.  If you use fx to initially
prepare your linux disk, use the expert option and resize the volume
header partition.  Make it big, like 25 Meg or so.  Shrink the efs/xfs
root partition down very small, but don't delete it.  Keep the swap
partition as well, but again, rather small.  On the Irix CD, you'll find
the directory /dist/miniroot, and inside there, the Irix kernel miniroot
images.  Pick the one named for your machine arch, such as unix.IP22.
When I set up my volume header, I put sash in there like normal, but also
put the miniroot image in there as well, and put the linux kernel as /unix
in the vestigal efs/xfs root partition.  Now from the prom, I can enter
the command "miniroot" and get the Irix kernel up with a handful of
utilities to manage the disk.  It has fx, dvhtool, and others.  On top of
that, you can ifconfig your ethernet device and use rcp to pull over your
linux kernel from the network to install it on the efx/xfs root or in the
volume header as you choose.  You can even mount cdroms and so forth.
Basicly, this is the next best thing to having a full blown Irix install
somewhere.

Hope these tips are usefull for someone!


--

J. Scott Kasten
Email: jsk AT tetracon-eng DOT net

"The only future you have is the one
 you choose to make for yourself..."


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From:   Keith M Wesolowski <wesolows@chem.unr.edu>
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Subject: Re: GDB question.
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On Fri, Jul 07, 2000 at 09:52:09AM -0300, J. Scott Kasten wrote:

> I've noticed in the Hard Hat 5.1 and the Simple Linux distros that GDB is
> lacking.  Is there a reason for that?  This is not a complaint, but more
> an iquiry to find out if there's known problems before I go banging my
> head against the wall trying to build something that won't for some
> reason or the other.
> 
> I'm presently using egcs-1.1.2, binutils 2.9.5, BFD 000425, and
> glibc-2.0.6 from Simple Linux 0.1 on an Indy.
> 
> Would appreciate any tips/tricks/caveats beforehand.

There is gdb 5.0 in the experimental Simple 0.2a set. You can try it
at ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/userland-0.2a/.
Note that this is glibc 2.2 based and may be highly unstable.
Nevertheless, it's what I'm currently using and I can verify that gdb
works. You may also be able to build gdb 4.17 or so from CVS on your
glibc 2.0 system; I don't know.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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Those of you who have recently mailed patches to me may want to resend
them.  I had a disk crash and lost a part of my unprocessed email.

  Ralf

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On Fri, Jul 07, 2000 at 08:31:17AM -0400, clemej wrote:

> whats the word on using CVS binutils and CVS gcc (2.96?) for 
> compiling mips64?

You need special patches for cvs-gcc and cvs-binutils.  We're working
on getting them in but the gcc people don't seem to listen.

  Ralf

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On Fri, Jul 07, 2000 at 10:10:59AM -0300, J. Scott Kasten wrote:

> I learned 3 slick booting tips for booting an Indy from disk without a
> regular Linux boot loader that might be useful to some of the newbies.
> 
> First off, there are two ways to trick the prom into booting the kernel
> image like the normal Irix kerenel from disk.  If you have an EFS or XFS
> bootable file system on the drive, and have Irix up at some point, you can
> put the linux kernel in the file system as /unix in place of an Irix
> kernel.  When booting, sash will look for that particular file and
> bootstrap it.  Another way to accomplish this trick if you don't want any
> Irix partitions on your drive at all is to use the volume header itself.
> Sash is located there, and the boot prom will load and execute sash as
> part of the boot process.  Under Irix, you can use dvhtool to replace sash
> with the linux kernel itself.  Then when the system tries to boot, the
> prom will load "sash" like normal, but will end up boot straping the linux
> kernel for you.  (I think this will require a coff image though.)
> 
> The third trick I learned will help those that cannot afford the spare
> change to keep around extra SCSI drives so that they have a bootable Irix
> image to use for accomplishing these feats.  If you use fx to initially
> prepare your linux disk, use the expert option and resize the volume
> header partition.  Make it big, like 25 Meg or so.  Shrink the efs/xfs
> root partition down very small, but don't delete it.  Keep the swap
> partition as well, but again, rather small.  On the Irix CD, you'll find
> the directory /dist/miniroot, and inside there, the Irix kernel miniroot
> images.  Pick the one named for your machine arch, such as unix.IP22.
> When I set up my volume header, I put sash in there like normal, but also
> put the miniroot image in there as well, and put the linux kernel as /unix
> in the vestigal efs/xfs root partition.  Now from the prom, I can enter
> the command "miniroot" and get the Irix kernel up with a handful of
> utilities to manage the disk.  It has fx, dvhtool, and others.  On top of
> that, you can ifconfig your ethernet device and use rcp to pull over your
> linux kernel from the network to install it on the efx/xfs root or in the
> volume header as you choose.  You can even mount cdroms and so forth.
> Basicly, this is the next best thing to having a full blown Irix install
> somewhere.

I've finally commited my rewrite of dvhtool into the CVS archive on
oss.  It's not yet complete but hackers may be interested in taking a
look at it.

One of my next projects will be a standalone libc which can be used to
write reasonably portable standalone tools like a sash equivalent.

  Ralf

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On Sun, 9 Jul 2000, Ralf Baechle wrote:

> I've finally commited my rewrite of dvhtool into the CVS archive on
> oss.  It's not yet complete but hackers may be interested in taking a
> look at it.
> 
> One of my next projects will be a standalone libc which can be used to
> write reasonably portable standalone tools like a sash equivalent.

Cool.  We need those things.  The tips I gave are only a work around until
we have a regular boot loader/miniroot.  The one thing that does not
work well with my methods is getting command line args to the booting
kernel such as "root=/dev/sda3" etc...  You can do that, but have to stop
the auto boot and enter the prom command tool to do it.


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Ralf Baechle wrote:

> On Fri, Jul 07, 2000 at 10:10:59AM -0300, J. Scott Kasten wrote:
>
> > I learned 3 slick booting tips for booting an Indy from disk without a
> > regular Linux boot loader that might be useful to some of the newbies.

A fourth means is to change the nvram to boot the file you want.
Leave /unix there,and call your linux kernel something like /linux2.2.0
and change the "kernname" nvram.

kernname=pci(0)scsi(0)disk(2)rdisk(0)partition(0)/unix
becomes

kernname=pci(0)scsi(0)disk(2)rdisk(0)partition(0)/linux2.2.0

This should work on the IRIX efs/xfs filesystem on the IRIX
partition.  Then you can create a script that resets the NVRAM
variable before reboot.

All we would need to make back and forth boots of IRIX/LINUX
is an "nvram" tool that runs under LInux.  (Which would be handy
for other porposes as well.


>
> >--
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Subject: R5000 oops
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This is a multi-part message in MIME format.
--------------B68A2EC6A0529B815E206118
Content-Type: text/plain; charset=us-ascii
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I am trying to compile vim and during the configure script exec I get an
oops.




--------------B68A2EC6A0529B815E206118
Content-Type: text/plain; charset=us-ascii;
 name="ksys.oops"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ksys.oops"

ksymoops 2.3.4 on sparc64 2.2.16.  Options used
     -v ./vmlinux-0704b (specified)
     -K (specified)
     -L (specified)
     -O (specified)
     -m ./System.map-0704b.foo (specified)
     -t elf32-bigmips -a mips:4600

checking for opendir... Unable to handle kernel paging request at virtual address 0040dca0, epc == 88043190, ra == 88065748
Warning (Oops_read): Code line not seen, dumping what data is available

Oops in fault.c:do_page_fault, line 158:
init : 00000000 1000fc00 00000000 8fdc0010
 : 8ac22f80 8ac22f80 0040dca0 8aaf9ee0
 : 886867c4 00000000 ffffffe0 88686720
2: 00000003 84000000 00000000 00000021
6: 8853e868 8853e860 1000fc01 00000007
0: 8aaf9ee0 8aaf9ee8 00000000 00000006
4: 00000000 2abd4640
8: 8aaf8000 8aaf9e18 00000180 88065748

>>RA;  88065748 <d_alloc+30/174>

epc   : 88043190
Status: 1000fc02
Cause : 00000004
Process gcc (pid: 1266, stackpage=8aaf8000)
Stack: 8aaf9ee0 8805a804 00000000 00000000 fffffff4 8be0dd80 8be0dd80 8aaf9ee8
       88065748 00000006 8805a7d8 8ac2d004 8aaf9ef8 8805a804 fffffff4 8be0dd80
       8be067c0 8aaf9ee8 8805b950 8be0dd80 8ac2d000 00000000 00000180 00000503
       8be06818 ffffffeb 8be0dd80 00000503 8805be3c 8805bd74 88195488 00000008
       00000000 88195484 00000001 88195144 00000502 00000502 00000180 8ac2d000
       00413f00 ...
Call Trace: [<8805a804>] [<88065748>] [<8805a7d8>] [<8805a804>] [<8805b950>] [<8805be3c>] [<8805bd74>] [<8804a4d4>] [<8804a94c>] [<88010f68>] [<88010f68>]
Code: 8ca20004  54400025  8e240008 <acc50000> 8e220008  00c28023  40086000  3409ff00  01094024 

>>PC;  0000000088043190 <kmem_cache_alloc+ac/374>   <=====
Trace; 000000008805a804 <cached_lookup+44/7c>
Trace; 0000000088065748 <d_alloc+30/174>
Trace; 000000008805a7d8 <cached_lookup+18/7c>
Trace; 000000008805a804 <cached_lookup+44/7c>
Trace; 000000008805b950 <lookup_hash+90/ec>
Trace; 000000008805be3c <open_namei+198/92c>
Trace; 000000008805bd74 <open_namei+d0/92c>
Trace; 000000008804a4d4 <filp_open+38/5c>
Trace; 000000008804a94c <sys_open+54/188>
Trace; 0000000088010f68 <stack_done+1c/38>
Trace; 0000000088010f68 <stack_done+1c/38>
Code;  0000000088043184 <kmem_cache_alloc+a0/374>
0000000000000000 <_PC>:
Code;  0000000088043184 <kmem_cache_alloc+a0/374>
   0:   8ca20004  lw      $v0,4($a1)
Code;  0000000088043188 <kmem_cache_alloc+a4/374>
   4:   54400025  0x54400025
Code;  000000008804318c <kmem_cache_alloc+a8/374>
   8:   8e240008  lw      $a0,8($s1)
Code;  0000000088043190 <kmem_cache_alloc+ac/374>   <=====
   c:   acc50000  sw      $a1,0($a2)   <=====
Code;  0000000088043194 <kmem_cache_alloc+b0/374>
  10:   8e220008  lw      $v0,8($s1)
Code;  0000000088043198 <kmem_cache_alloc+b4/374>
  14:   00c28023  subu    $s0,$a2,$v0
Code;  000000008804319c <kmem_cache_alloc+b8/374>
  18:   40086000  mfc0    $t0,$12
Code;  00000000880431a0 <kmem_cache_alloc+bc/374>
  1c:   3409ff00  li      $t1,0xff00
Code;  00000000880431a4 <kmem_cache_alloc+c0/374>
  20:   01094024  and     $t0,$t0,$t1


1 warning issued.  Results may not be reliable.

--------------B68A2EC6A0529B815E206118--


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On Sun, Jul 09, 2000 at 03:34:17PM -0700, Bryan Manternach wrote:
> A fourth means is to change the nvram to boot the file you want.
> Leave /unix there,and call your linux kernel something like /linux2.2.0
> and change the "kernname" nvram.
> 
> kernname=pci(0)scsi(0)disk(2)rdisk(0)partition(0)/unix
> becomes

The problem with the nvram vars is the non-availability on
the Indigo2 which is not capable of storing arbitrary vars
or arbitrary content in existing vars.

I would prefer a "SILO" the Sparc Linux LOader which is capable
of reading an ext2 filesystem, getting its config from there
and loading the kernel from an ext2.

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-5201-669912
     "If you're not having fun right now, you're wasting your time."


From owner-linux-mips@oss.sgi.com Sun Jul  9 16:14:42 2000
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From:   Jason Mesker <jasonm@tool.net>
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Subject: Re: R5000 oops
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I am running kernel version: 2.4.0 test 3 pre 2.  I am useing wesolows vmlinux-0704b kernel.

I think I have found the problem though.  I was running the system without swap and with 64Megs of RAM.  I added around 20 megs of swap space and did the
configure again and it worked fine.  I am actually compiling now and will let the status be known if it completes or not.  As of right now everything looks
like it is working fine with the swap enabled.




Ralf Baechle wrote:

> What kernel version have you been running?
>
>   Ralf
>
> On Mon, Jul 10, 2000 at 02:48:35AM -0400, Jason Mesker wrote:
>
> > I am trying to compile vim and during the configure script exec I get an
> > oops.
> >
> >
> >
>
> > ksymoops 2.3.4 on sparc64 2.2.16.  Options used
> >      -v ./vmlinux-0704b (specified)
> >      -K (specified)
> >      -L (specified)
> >      -O (specified)
> >      -m ./System.map-0704b.foo (specified)
> >      -t elf32-bigmips -a mips:4600
> >
> > checking for opendir... Unable to handle kernel paging request at virtual address 0040dca0, epc == 88043190, ra == 88065748
> > Warning (Oops_read): Code line not seen, dumping what data is available
> >
> > Oops in fault.c:do_page_fault, line 158:
> > init: 00000000 1000fc00 00000000 8fdc0010
> >  : 8ac22f80 8ac22f80 0040dca0 8aaf9ee0
> >  : 886867c4 00000000 ffffffe0 88686720
> > 2: 00000003 84000000 00000000 00000021
> > 6: 8853e868 8853e860 1000fc01 00000007
> > 0: 8aaf9ee0 8aaf9ee8 00000000 00000006
> > 4: 00000000 2abd4640
> > 8: 8aaf8000 8aaf9e18 00000180 88065748
> >
> > >>RA;  88065748 <d_alloc+30/174>
> >
> > epc: 88043190
> > Status: 1000fc02
> > Cause: 00000004
> > Process gcc (pid: 1266, stackpage=8aaf8000)
> > Stack: 8aaf9ee0 8805a804 00000000 00000000 fffffff4 8be0dd80 8be0dd80 8aaf9ee8
> >        88065748 00000006 8805a7d8 8ac2d004 8aaf9ef8 8805a804 fffffff4 8be0dd80
> >        8be067c0 8aaf9ee8 8805b950 8be0dd80 8ac2d000 00000000 00000180 00000503
> >        8be06818 ffffffeb 8be0dd80 00000503 8805be3c 8805bd74 88195488 00000008
> >        00000000 88195484 00000001 88195144 00000502 00000502 00000180 8ac2d000
> >        00413f00 ...
> > Call Trace: [<8805a804>] [<88065748>] [<8805a7d8>] [<8805a804>] [<8805b950>] [<8805be3c>] [<8805bd74>] [<8804a4d4>] [<8804a94c>] [<88010f68>] [<88010f68>]
> > Code: 8ca20004  54400025  8e240008 <acc50000> 8e220008  00c28023  40086000  3409ff00  01094024
> >
> > >>PC;  0000000088043190 <kmem_cache_alloc+ac/374>   <=====
> > Trace; 000000008805a804 <cached_lookup+44/7c>
> > Trace; 0000000088065748 <d_alloc+30/174>
> > Trace; 000000008805a7d8 <cached_lookup+18/7c>
> > Trace; 000000008805a804 <cached_lookup+44/7c>
> > Trace; 000000008805b950 <lookup_hash+90/ec>
> > Trace; 000000008805be3c <open_namei+198/92c>
> > Trace; 000000008805bd74 <open_namei+d0/92c>
> > Trace; 000000008804a4d4 <filp_open+38/5c>
> > Trace; 000000008804a94c <sys_open+54/188>
> > Trace; 0000000088010f68 <stack_done+1c/38>
> > Trace; 0000000088010f68 <stack_done+1c/38>
> > Code;  0000000088043184 <kmem_cache_alloc+a0/374>
> > 0000000000000000 <_PC>:
> > Code;  0000000088043184 <kmem_cache_alloc+a0/374>
> >    0:   8ca20004  lw      $v0,4($a1)
> > Code;  0000000088043188 <kmem_cache_alloc+a4/374>
> >    4:   54400025  0x54400025
> > Code;  000000008804318c <kmem_cache_alloc+a8/374>
> >    8:   8e240008  lw      $a0,8($s1)
> > Code;  0000000088043190 <kmem_cache_alloc+ac/374>   <=====
> >    c:   acc50000  sw      $a1,0($a2)   <=====
> > Code;  0000000088043194 <kmem_cache_alloc+b0/374>
> >   10:   8e220008  lw      $v0,8($s1)
> > Code;  0000000088043198 <kmem_cache_alloc+b4/374>
> >   14:   00c28023  subu    $s0,$a2,$v0
> > Code;  000000008804319c <kmem_cache_alloc+b8/374>
> >   18:   40086000  mfc0    $t0,$12
> > Code;  00000000880431a0 <kmem_cache_alloc+bc/374>
> >   1c:   3409ff00  li      $t1,0xff00
> > Code;  00000000880431a4 <kmem_cache_alloc+c0/374>
> >   20:   01094024  and     $t0,$t0,$t1
> >
> >
> > 1 warning issued.  Results may not be reliable.
>
>   Ralf


From owner-linux-mips@oss.sgi.com Sun Jul  9 16:49:33 2000
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Date:   Mon, 10 Jul 2000 01:18:46 +0200
From:   Florian Lohoff <flo@rfc822.org>
To:     linux-mips@oss.sgi.com
Subject: current cvs binutils and mipsel-linux kernel
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Hi,
it seems there is a problem in the binutils from current cvs ...

mipsel-linux-gcc -D__KERNEL__ -I/home/flo/mips/dec/src/linux-2.4.0-test3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer  -G 0 -mno-abicalls -fno-pic -mcpu=r4600 -mips2 -pipe -fno-strict-aliasing -c softfp.S -o softfp.o
softfp.S: Assembler messages:
softfp.S:225: Error: illegal operands `la'
softfp.S:225: Error: unrecognized opcode `cvt'
softfp.S:225: Error: Rest of line ignored. First ignored character is `.'.
make[1]: *** [softfp.o] Error 1
make[1]: Leaving directory `/home/flo/mips/dec/src/linux-2.4.0-test3/arch/mips/kernel'
make: *** [_dir_arch/mips/kernel] Error 2

(flo@ping)~/mips/dec/src/linux-2.4.0-test3# mipsel-linux-as --version
GNU assembler 2.10.90
Copyright 2000 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
This assembler was configured for a target of `mipsel-linux'.

This is cvs checkout as of 20000708

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-5201-669912
     "If you're not having fun right now, you're wasting your time."


From owner-linux-mips@oss.sgi.com Sun Jul  9 20:46:13 2000
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From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     Florian Lohoff <flo@rfc822.org>
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Subject: Re: current cvs binutils and mipsel-linux kernel
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On Mon, Jul 10, 2000 at 01:18:46AM +0200, Florian Lohoff wrote:

> mipsel-linux-gcc -D__KERNEL__ -I/home/flo/mips/dec/src/linux-2.4.0-test3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer  -G 0 -mno-abicalls -fno-pic -mcpu=r4600 -mips2 -pipe -fno-strict-aliasing -c softfp.S -o softfp.o
> softfp.S: Assembler messages:
> softfp.S:225: Error: illegal operands `la'
> softfp.S:225: Error: unrecognized opcode `cvt'
> softfp.S:225: Error: Rest of line ignored. First ignored character is `.'.
> make[1]: *** [softfp.o] Error 1
> make[1]: Leaving directory `/home/flo/mips/dec/src/linux-2.4.0-test3/arch/mips/kernel'
> make: *** [_dir_arch/mips/kernel] Error 2

This is not a binutils problem. It is caused by a behaviour change in
the C preprocessor in gcc 2.96 >= 000703. This has been fixed in the
CVS kernel; there are other changes required to build with such
compilers available in my patch at
ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/kernel-patches/kernel-newcpp-000707.diff.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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From owner-linux-mips@oss.sgi.com Mon Jul 10 06:32:19 2000
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Previously Jeff Harrell wrote:
> modutils 2.3.0

There is (and was) no such thing as modutils 2.3.0. Perhaps you
mean modutils 2.3.10?

Wichert.


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       "Re: Kernel boot tips." (Jul  9, 21:59)
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On Jul 9, 21:59, Ralf Baechle wrote:
>I've finally commited my rewrite of dvhtool into the CVS archive on
>oss.  It's not yet complete but hackers may be interested in taking a
>look at it.
[..]

This looks great. Just for fun I did a quick compile under irix 6.5.8 on 
an SGI Octane, dvhtool --print-all and dvhtool --print-all /dev/rdsk/dksXXXvh 
worked fine. --vh-to-unix failed with 'Short read: Error 0', I assume this 
simply isn't finished yet (or maybe it doesn't work under irix).
BTW it compiled fine with gcc as well as with the MIPSPro compiler (after
replacing this little gcc'ism:)
--- dvhlib.c.orig       Fri Jul  7 04:24:53 2000
+++ dvhlib.c    Mon Jul 10 15:43:51 2000
@@ -40,7 +40,7 @@
        case PTYPE_XFS:         return "XFS";
        case PTYPE_XFSLOG:      return "XFS Log";
        case PTYPE_XLV:         return "XLV Volume";
-       case 13 ... 15:         return "Unknown Partition Type";
+       default:                return "Unknown Partition Type";
        }
 
        return "Invalid Type";


From owner-linux-mips@oss.sgi.com Mon Jul 10 07:41:28 2000
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To:     "J. Scott Kasten" <jsk@tetracon-eng.net>
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On Mon, Jul 10, 2000 at 10:00:13AM -0300, J. Scott Kasten wrote:

> Was not able to native compile any GDB from 4.16 to 5.0.  The ./configure
> script always complains "arch not supported".  It looks like I'll have to
> try the version at the URL you mention above.
> 
> Note: detected arch was "mips-unknown-linux-gnu" which would seem correct.

For 4.1x you should get it from CVS on oss.sgi.com. For 5.0 you will
need the Maciej patches (see mailing list archives); you can get them
at
ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/userland-0.2a/src/gdb*,
or originals at http://www.ds2.pg.gda.pl/~macro/.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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From:   Florian Lohoff <flo@rfc822.org>
To:     linux-mips@oss.sgi.com
Subject: Decstation R4000 Kernel 2.4.0-test3-pre7 available
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Hi,
after i figured out how to build the current kernel with current
binutils/cvs - There is now a binary image for R4k decstations
available at 

ftp://ftp.rfc822.org/pub/local/debian-mips/kernel

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-5201-669912
     "If you're not having fun right now, you're wasting your time."


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Subject: Re: current cvs binutils and mipsel-linux kernel
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On Mon, Jul 10, 2000 at 01:18:46AM +0200, Florian Lohoff wrote:

> it seems there is a problem in the binutils from current cvs ...
> 
> mipsel-linux-gcc -D__KERNEL__ -I/home/flo/mips/dec/src/linux-2.4.0-test3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer  -G 0 -mno-abicalls -fno-pic -mcpu=r4600 -mips2 -pipe -fno-strict-aliasing -c softfp.S -o softfp.o
> softfp.S: Assembler messages:
> softfp.S:225: Error: illegal operands `la'
> softfp.S:225: Error: unrecognized opcode `cvt'
> softfp.S:225: Error: Rest of line ignored. First ignored character is `.'.
> make[1]: *** [softfp.o] Error 1
> make[1]: Leaving directory `/home/flo/mips/dec/src/linux-2.4.0-test3/arch/mips/kernel'
> make: *** [_dir_arch/mips/kernel] Error 2

You're probably also using a very recent gcc.  Recent gcc had preprocessor
changes to make it more stricly comply to ISO.  This breaks a number of
files in the Linux kernel which for readability have extra space around
the ## C preprocessor paste.  I've already commited the necessary fixes
for softfp.S which is the only affected MIPS file to CVS.  There is still
a large number of other files which aren't ISO C89 compliant.   Keith
Wesolowski has made a patch for those which I'll send to Linus.

  Ralf

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Subject: Re: R5000 oops
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On Mon, 10 Jul 2000, Jason Mesker wrote:
> I am running kernel version: 2.4.0 test 3 pre 2.  I am useing wesolows vmlinux-0704b kernel.
> 
> I think I have found the problem though.  I was running the system without swap and with 64Megs of RAM.  I added around 20 megs of swap space and did the
> configure again and it worked fine.  I am actually compiling now and will let the status be known if it completes or not.  As of right now everything looks
> like it is working fine with the swap enabled.

I suspect that's not the problem, though. 64 MB of RAM should not be exhausted
that fast.

I saw lots of similar oopses on the NEC DDB Vrc-5074 with various 2.3.x
kernels. Other people reported similar oopses with other machines. And the
common factor is the R5000.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Linux/{m68k~Amiga,PPC~CHRP} -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds


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Subject: Re: R5000 oops
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I have a R5k indy with 128meg and 2x2gig disks that I can test on.  It's
currently running irix, but i've been meaning to install linux on it.  If
one of you can tell me what I should test/test for I'd be willing to try.
	Nick

On Mon, 10 Jul 2000, Geert Uytterhoeven wrote:

> On Mon, 10 Jul 2000, Jason Mesker wrote:
> > I am running kernel version: 2.4.0 test 3 pre 2.  I am useing wesolows vmlinux-0704b kernel.
> > 
> > I think I have found the problem though.  I was running the system without swap and with 64Megs of RAM.  I added around 20 megs of swap space and did the
> > configure again and it worked fine.  I am actually compiling now and will let the status be known if it completes or not.  As of right now everything looks
> > like it is working fine with the swap enabled.
> 
> I suspect that's not the problem, though. 64 MB of RAM should not be exhausted
> that fast.
> 
> I saw lots of similar oopses on the NEC DDB Vrc-5074 with various 2.3.x
> kernels. Other people reported similar oopses with other machines. And the
> common factor is the R5000.
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 
> --
> Geert Uytterhoeven -- Linux/{m68k~Amiga,PPC~CHRP} -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> 							    -- Linus Torvalds
> 


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On Mon, Jul 10, 2000 at 03:55:34PM +0200, Tor Arntsen wrote:

> This looks great. Just for fun I did a quick compile under irix 6.5.8 on 
> an SGI Octane, dvhtool --print-all and dvhtool --print-all /dev/rdsk/dksXXXvh 
> worked fine. --vh-to-unix failed with 'Short read: Error 0', I assume this 
> simply isn't finished yet (or maybe it doesn't work under irix).

It was actually developed under with gcc under IRIX and I can't even remember
having tested it under anything else.

It's a while that I last worked on it but as I remember --vh-to-unix was
actually working while the other direction was work in progress.

Maybe some nroff fan also wants to provide a manpage?

> BTW it compiled fine with gcc as well as with the MIPSPro compiler (after
> replacing this little gcc'ism:)

Patch applied.

  Ralf

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On Jul 10, 23:53, Ralf Baechle wrote:
[...]
>It's a while that I last worked on it but as I remember --vh-to-unix was
>actually working while the other direction was work in progress.

It is indeed working, I was merely using it incorrectly (I had specified 
the device as I do with the SGI dvhtool instead of using -d).

>Maybe some nroff fan also wants to provide a manpage?

I can do it if nobody else beats me to it.

-Tor

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Subject: Re: R5000 oops
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On Mon, 10 Jul 2000 nick@ns.snowman.net wrote:
> I have a R5k indy with 128meg and 2x2gig disks that I can test on.  It's
> currently running irix, but i've been meaning to install linux on it.  If
> one of you can tell me what I should test/test for I'd be willing to try.

Just stress test the box and you'll see.

> On Mon, 10 Jul 2000, Geert Uytterhoeven wrote:
> > On Mon, 10 Jul 2000, Jason Mesker wrote:
> > > I am running kernel version: 2.4.0 test 3 pre 2.  I am useing wesolows vmlinux-0704b kernel.
> > > 
> > > I think I have found the problem though.  I was running the system without swap and with 64Megs of RAM.  I added around 20 megs of swap space and did the
> > > configure again and it worked fine.  I am actually compiling now and will let the status be known if it completes or not.  As of right now everything looks
> > > like it is working fine with the swap enabled.
> > 
> > I suspect that's not the problem, though. 64 MB of RAM should not be exhausted
> > that fast.
> > 
> > I saw lots of similar oopses on the NEC DDB Vrc-5074 with various 2.3.x
> > kernels. Other people reported similar oopses with other machines. And the
> > common factor is the R5000.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds


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To:     linux-mips@oss.sgi.com, linux-mips@vger.rutgers.edu,
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Subject: div overflow
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In MIPS architecture, is the result of 0x80000000/-1 undefined?

The operands of DIV instruction 32bit signed int.

	 0x7fff_ffff =  2,147,483,647 (INT_MAX)
	 0x8000_0000 = -2,147,483,648 (INT_MIN)

limits.h defines them as;

> /* Minimum and maximum values a `signed int' can hold.  */
> #  define INT_MIN       (- INT_MAX - 1)
> #  define INT_MAX       2147483647

0x8000_0000 / 0xffff_ffff = -2,147,483,648 / -1 = 2,147,483,648 > INT_MAX

But the description of the DIV instruction of MIPS RISC Architecture
(Kane and Heinrich) says;

	No overflow exception occurs under any circumstances, and the
	result of this operation is undefined when the divisor is zero.

According to 'See MIPS Run', P.186, MIPS assembler expands a div
instruction to an instruction sequence in which these condition are
checked.  Do all MIPS assemblers do this?

Any information is welcome.

Thank you.
-------------
Hiroo Hayashi	System LSI Architecture Dept.
		Computer on Silicon Development Center
		TOSHIBA Corporation


From owner-linux-mips@oss.sgi.com Tue Jul 11 16:57:54 2000
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On Tue, Jul 11, 2000 at 04:19:18PM +0200, Tor Arntsen wrote:

> On Jul 10, 23:53, Ralf Baechle wrote:
> [...]
> >It's a while that I last worked on it but as I remember --vh-to-unix was
> >actually working while the other direction was work in progress.
> 
> It is indeed working, I was merely using it incorrectly (I had specified 
> the device as I do with the SGI dvhtool instead of using -d).
> 
> >Maybe some nroff fan also wants to provide a manpage?
> 
> I can do it if nobody else beats me to it.

While still somewhat inaccurate the manpage is still a big improvment
over the current Read-The-Fucking-Source state of things, so I've applied
it.

  Ralf

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Date:   Wed, 12 Jul 2000 16:31:39 +0200
From:   Florian Lohoff <flo@rfc822.org>
To:     debian-mips@lists.debian.org, linux-mips@oss.sgi.com
Subject: mips glibc 2.1.91 debian packages available
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Hi,
i have successfully build the debian source packages
for glibc 2.1.91 (2.2. alpha)

They are available from 

ftp://ftp.rfc822.org/pub/local/debian-mips/experimental

I havent tried to use them right now ... YMMV

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-5201-669912
     "If you're not having fun right now, you're wasting your time."


From owner-linux-mips@oss.sgi.com Wed Jul 12 09:27:58 2000
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Date:   Wed, 12 Jul 2000 18:08:00 +0200
From:   Ralf Baechle <ralf@oss.sgi.com>
To:     Hiroo HAYASHI <hiroo.hayashi@toshiba.co.jp>
Cc:     linux-mips@oss.sgi.com, linux-mips@vger.rutgers.edu,
        linux-mips@fnet.fr
Subject: Re: div overflow
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On Tue, Jul 11, 2000 at 09:58:47PM +0900, Hiroo HAYASHI wrote:

> In MIPS architecture, is the result of 0x80000000/-1 undefined?
> 
> The operands of DIV instruction 32bit signed int.
> 
> 	 0x7fff_ffff =  2,147,483,647 (INT_MAX)
> 	 0x8000_0000 = -2,147,483,648 (INT_MIN)
> 
> limits.h defines them as;
> 
> > /* Minimum and maximum values a `signed int' can hold.  */
> > #  define INT_MIN       (- INT_MAX - 1)
> > #  define INT_MAX       2147483647
> 
> 0x8000_0000 / 0xffff_ffff = -2,147,483,648 / -1 = 2,147,483,648 > INT_MAX

Worse - you're using signed numbers, so 2,147,483,648 is actually
-2,147,483,648 which is smaller than INT_MAX.  The death trap in two's
complement arithmetic.

> But the description of the DIV instruction of MIPS RISC Architecture
> (Kane and Heinrich) says;
> 
> 	No overflow exception occurs under any circumstances, and the
> 	result of this operation is undefined when the divisor is zero.

Correct.  Note that sometimes it's somewhat confusing which instructions
are macro instructions and which the pure machine instruction on MIPS.
In this particular case

> According to 'See MIPS Run', P.186, MIPS assembler expands a div
> instruction to an instruction sequence in which these condition are
> checked.  Do all MIPS assemblers do this?

At least I don't know any exceptions.  This is how the GNU assembler
expands div $2, $3, $4 when assembled with -O3 -mips4 --trap:

   0:	0064001a 	div	$zero,$v1,$a0
   4:	00800034 	teq	$a0,$zero
   8:	2401ffff 	li	$at,-1
   c:	14810002 	bne	$a0,$at,18
  10:	3c018000 	lui	$at,0x8000
  14:	00610034 	teq	$v1,$at
  18:	00001012 	mflo	$v0
  1c:	00000000 	nop

As you see the code tries to handle the special cases division by zero
and division of 0x80000000 / -1.  Also fairly bulky macro expansion - and
the MIPS I macro is even heavier.  If you want to disable this you have to
use the div / divu / ddiv / ddivu instructions with $0 as the first
argument and do the mflo yourself.

Which reminds me that I intend to use --trap as an optimization since a
long time.

Compiling the default Origin kernel with and without --trap

   text	   data	    bss	    dec	    hex	filename
1276100	 321624	 204396	1802120	 1b7f88	vmlinux
1274404	 321624	 204396	1800424	 1b78e8	vmlinux.trap

Quite impressive difference for all most zero effort to implement ...

  Ralf

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Date:   Wed, 12 Jul 2000 16:12:59 -0300
From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     Guido Guenther <guido.guenther@gmx.net>
cc:     linux-mips@oss.sgi.com
Subject: Re: XFree 4.0.1 on mips, mipsel
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On Fri, 23 Jun 2000, Guido Guenther wrote:

> I've submitted several patches to the XFree-Project to include at least
> basic support for mips/mipsel architecture. These are based on previous
> work done by Ralf Baechle, Ulf Carlson, Gleb O. Reiko & Nina A.
> Podolskaya. I hope I didn't break anything.
> The patches are known to work on the Indy but are AFAIK untested on other 
> mips machines and appear in the alpha version of xfree which can be checked 
> out of the repository at sourceforge, see: http://www.xfree86.org/cvs/
> Regards,
>  -- Guido

Question.  What did you use for your site.def/host.def?  

I added this:
#define LinuxDistribution LinuxUnknown

Got this after the Imake boot straped itself:

Building on Linux 2.2.14 mips [ELF] (2.2.14).

Linux Distribution: Unknown
libc version: 6.0.6
binutils version: 2.9

It more or less ran through to completion.  After installing the libs and
some aps, updating the ld.so.conf path, ldconfig, etc...  I cannot run any
of the /usr/X11R6/bin utilities.  They all bus error, which sounds like a
data alignment issue or library problem.  (I really don't care about the X
server build, I just want the LIBRARIES.)

ldd shows apparently successful library resolution and the magic numbers
on the files show proper endianness, CPU target type, etc...

I'm using the Simple Linux 0.1 distro as the base.

My questions are:

#1 Is there more to the configuration than this?

#2 I downloaded the 4.0.1 src tarballs (3 of them), should those include
your patches already, or do I need to get and add those before I can build
successfully?

Thanks.

-S-


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From owner-linux-mips@oss.sgi.com Thu Jul 13 00:16:41 2000
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Date:   Thu, 13 Jul 2000 00:16:01 -0700
From:   Keith M Wesolowski <wesolows@foobazco.org>
To:     linux-mips@oss.sgi.com
Subject: Simple Linux/MIPS 0.2b
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Simple Linux/MIPS 0.2b ``Death on a Stick'' has been released.

*** This is not a production release ***

This version runs on big-endian MIPS systems and has been tested on
R4400 SGI IP22. You can obtain the distribution from the following location:

MANDATORY Release Notes:
ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/userland-0.2b/RELEASE_NOTES-0.2b
Binaries:
ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/userland-0.2b/bin

There are also some patches in the src/ directory. I have lost some of
my patches but will be recreating them and making them available at
that location as well. Also included is a summary of the commands used
to build the distribution.

Highlights:

- glibc 2.1.90 (000622) based - with empty symbol fix from Maciej
- gcc 2.96 (000707)
- binutils 2.10.90 (000707)
- linux 2.4.0-test3-pre5 (000708)
- support for profiling
- full netkit and net-tools
- gdb 5.0
- ncurses 5.1
- kernel debugging tools
- numerous bugs fixed
- numerous new bugs

Please read the release notes before using. Installation instructions
for 0.1, which should still work in general, can be found at
http://foobazco.org/~wesolows/Install-HOWTO.html.

Thanks to everyone who has been submitting patches, fixing bugs,
writing the software, and in general making this distribution
possible.

This will be the last release for at least 6 weeks. Happy hacking!

-- 
Keith M Wesolowski <wesolows@foobazco.org> http://foobazco.org/~wesolows/
(( Project Foobazco Coordinator and Network Administrator )) aiieeeeeeee!
"The list of people so amazingly stupid they can't even tie their shoes?"
"Yeah, you know, /etc/passwd."

From owner-linux-mips@oss.sgi.com Thu Jul 13 08:07:36 2000
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From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     Keith M Wesolowski <wesolows@foobazco.org>
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Subject: Re: Simple Linux/MIPS 0.2b
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On Thu, 13 Jul 2000, Keith M Wesolowski wrote:
> Simple Linux/MIPS 0.2b ``Death on a Stick'' has been released.

Fantastic!  I've had great success with release 0.1 on an Indy.  Perhaps
it's almost too stable for my blood.  Need to go play with fire!  ;-)

Actually, I do have a question for any of you that have been doing builds.
I seem to be having some interesting problems with shared object
libraries.  I'm using S-L-M 0.1 on an Indy as a development/test bed for
code that will eventually end up in an embedded vrXXXX system.  (I've
already verified that the binaries are portable.)  However, I am having
difficulty on the Indy itself.  NONE of the shared objects that I build on
that box can be used by programs on that box.  Yes, I either placed them
in /lib or /usr/lib or built a proper ld.so.cache file for them.  The ldd
utility can resolve the libraries, etc...  However, every program built
on that box against libraries that I built on that box exits with an
immediate bus error.  It appears to be an issue with the libraries
themselves.  If I scavenge the equivalent libraries from the Hard Hat 5.1
distro and drop them in place, everything seems happy and works fine.
Thus, there's something funky about the so's I'm building myself.

I've tried building the XFree 4.0.1 libraries, Lesstiff libraries, and
libraries from our own code base.  All breaks the same way.

#1 What form of black magic are you guys using to do this?

#2 Are there specific compiler flags/phases that should/shouldn't be used
with MIPS arch so's that are different than what I'd normally do under
Linux?

#3 Should I be trying to cross compile the so's them selves instead of
native builds?

#4 Are you using different flavors of gcc/binutils to do different jobs
because of known breakages?

Any tips appreciated here.  In the mean, I'm going to start playing with
flags.

Sincerely,

-JSK-


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From owner-linux-mips@oss.sgi.com Thu Jul 13 15:01:08 2000
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Hello,

I have the ide-controller running on my mips-board. My next step will be to get some graphics out of this box. On the board is an onboard graphics chip and according to the specs it is VGA compatible.

I am using the serial-console for debugging and for sending characters to the box. My source tree is based on kernel 2.2.12.

Because the chip is VGA compatible I try to get the VGA16 framebuffer running on the box. After enabling the VGA16 framebuffer I receive the following output:

Jumping to image at 800605DCh...
Detected 16MB of memory.
Loading R4000/MIPS32 MMU routines.
CPU revision is: 000028a0
Primary instruction cache 32kb, linesize 32 bytes
Primary data cache 32kb, linesize 32 bytes
Linux version 2.2.12 (eniessen@psvcas16) (gcc version egcs-2.90.29 980515 (egcs-
1.0.3 release)) #10 Thu Jul 13 13:45:19 PDT 2000
calculating r4koff... 000f4240(1000000)
CPU frequency 200.00 MHz
Console: colour VGA+ 80x50
Calibrating delay loop... 199.88 BogoMIPS
Memory: 12652k/16380k available (616k kernel code, 2724k data)
Checking for 'wait' instruction...  available.
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
Found SAA9730 at b2800000
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
Starting kswapd v 1.1.1.1
vga16fb: initializing
vga16fb: mapped to 0xa00a0000
Console: switching to colour frame buffer device 80x30

It is doing the take_over_console but when I check the output of my VGA-connector there is no signal. Someone an idea how I can debug this???

Has somebody any experience with framebuffers on a mips?

Any hints/links/tips would be welcome,

Thanks for your time,

	Erik


From owner-linux-mips@oss.sgi.com Thu Jul 13 15:52:18 2000
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From:   Ralf Baechle <ralf@oss.sgi.com>
To:     "J. Scott Kasten" <jsk@tetracon-eng.net>
Cc:     Keith M Wesolowski <wesolows@foobazco.org>, linux-mips@oss.sgi.com
Subject: Re: Simple Linux/MIPS 0.2b
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On Thu, Jul 13, 2000 at 10:58:48AM -0300, J. Scott Kasten wrote:

> distro and drop them in place, everything seems happy and works fine.
> Thus, there's something funky about the so's I'm building myself.
> 
> I've tried building the XFree 4.0.1 libraries, Lesstiff libraries, and
> libraries from our own code base.  All breaks the same way.
> 
> #1 What form of black magic are you guys using to do this?

Holy Penguin Pee (TM).  Available at www.antarctica.com.br ;-)

> #2 Are there specific compiler flags/phases that should/shouldn't be used
> with MIPS arch so's that are different than what I'd normally do under
> Linux?

No compiler flags needed.

> #3 Should I be trying to cross compile the so's them selves instead of
> native builds?

That should make no difference in the resulting binaries if you use the
same versions of everything.

> #4 Are you using different flavors of gcc/binutils to do different jobs
> because of known breakages?

We have various known problems with the various binutils version around.
We're working on getting a current snapshot of binutils working
properly but right now we still have various problems, therefore
egcs 1.0.3a + binutils 2.8.1 is still the recommended version.

  Ralf

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From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     "J. Scott Kasten" <jsk@tetracon-eng.net>
Cc:     Keith M Wesolowski <wesolows@foobazco.org>, linux-mips@oss.sgi.com
Subject: Re: Simple Linux/MIPS 0.2b
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On Thu, Jul 13, 2000 at 10:58:48AM -0300, J. Scott Kasten wrote:

> already verified that the binaries are portable.)  However, I am having
> difficulty on the Indy itself.  NONE of the shared objects that I build on
> that box can be used by programs on that box.  Yes, I either placed them

It's not clear why that is. For example, ncurses is a shared library,
and bash is linked against it. That works fine.

> I've tried building the XFree 4.0.1 libraries, Lesstiff libraries, and
> libraries from our own code base.  All breaks the same way.

I have successfully built XFree on 0.1. It even worked.

> #2 Are there specific compiler flags/phases that should/shouldn't be used
> with MIPS arch so's that are different than what I'd normally do under
> Linux?

No.

> #3 Should I be trying to cross compile the so's them selves instead of
> native builds?

If anything that would be worse. It might be faster, though. :)

> #4 Are you using different flavors of gcc/binutils to do different jobs
> because of known breakages?

I'm not because I feel that's a cop-out. If it doesn't work, we need
to fix it, not just keep using old stuff forever as a band-aid. I
don't mean offense to anyone; obviously many people need stability
rather than currency so their take on this will differ from mine; I
just don't believe that using the old toolchain is the right approach
in the long run. It's important to get the -current stuff working and
the only way that will happen is if people find and fix bugs. There
are already a few waiting for some intrepid volunteer to fix; see the
0.2b release notes and various mailing lists. There are known
breakages with binutils, for all versions I am aware of, and for most
if not all gcc versions.  However, for shared libraries and dynamic
linking, the versions included in 0.2b seem to work fine. Ideally the
new toolchain will have _better_ quality than the old one very soon;
when that does, everyone can switch and the ancient stuff can finally
die. In the meantime, consider everything I announce to be of
experimental quality, in case I haven't been adequately clear thus
far.

In the meantime, Ralf and a number of others are using egcs 1.0.3a and
binutils 2.8.1, both with patches. These may be more reliable for you.

> Any tips appreciated here.  In the mean, I'm going to start playing with
> flags.

Please don't use 0.1 any more. If you want a glibc 2.0 system, use
Hard Hat or some other "officially sanctioned" distribution. Use 0.2b
if you want to play with the current stuff.

Sorry for any confusion.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

From owner-linux-mips@oss.sgi.com Thu Jul 13 16:46:49 2000
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Date:   Thu, 13 Jul 2000 19:39:50 -0300
From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     Ralf Baechle <ralf@oss.sgi.com>
cc:     Keith M Wesolowski <wesolows@foobazco.org>, linux-mips@oss.sgi.com
Subject: Re: Simple Linux/MIPS 0.2b
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On Fri, 14 Jul 2000, Ralf Baechle wrote:

> We have various known problems with the various binutils version around.
> We're working on getting a current snapshot of binutils working
> properly but right now we still have various problems, therefore
> egcs 1.0.3a + binutils 2.8.1 is still the recommended version.

OK, I'll give that a shot along with the binutils-000707, gcc-000707 on
the Simple Linux site.  I've disovered that SOME of the shared objects I
build work, some do not at this point using the egcs-1.1.2 and
binutils-2.9.5 from the first Simple release.  I'll keep hammering at
this until I find a combo that does the job.

Thanks.


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From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     Keith M Wesolowski <wesolows@chem.unr.edu>
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Subject: Re: Simple Linux/MIPS 0.2b
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On Thu, 13 Jul 2000, Keith M Wesolowski wrote:
> > However, I am having
> > difficulty on the Indy itself.  NONE of the shared objects that I build on
> > that box can be used by programs on that box.  Yes, I either placed them
> 
> It's not clear why that is. For example, ncurses is a shared library,
> and bash is linked against it. That works fine.

I know, all the other SO's work too, it only seems to affect the ones that
I build, however, I have discovered that some of them do work, but many
don't.

> > I've tried building the XFree 4.0.1 libraries, Lesstiff libraries, and
> > libraries from our own code base.  All breaks the same way.
> 
> I have successfully built XFree on 0.1. It even worked.

Well, that's the status that I'm aiming for!

> > #3 Should I be trying to cross compile the so's them selves instead of
> > native builds?
> 
> If anything that would be worse. It might be faster, though. :)

Agreed, however I'm just looking for a solution.

> > #4 Are you using different flavors of gcc/binutils to do different jobs
> > because of known breakages?
> 
> I'm not because I feel that's a cop-out. If it doesn't work, we need
> to fix it, not just keep using old stuff forever as a band-aid. I
> don't mean offense to anyone; obviously many people need stability
> rather than currency so their take on this will differ from mine; I
> just don't believe that using the old toolchain is the right approach
> in the long run. It's important to get the -current stuff working and
> the only way that will happen is if people find and fix bugs. There
> are already a few waiting for some intrepid volunteer to fix; see the
> 0.2b release notes and various mailing lists. There are known
> breakages with binutils, for all versions I am aware of, and for most
> if not all gcc versions.  However, for shared libraries and dynamic
> linking, the versions included in 0.2b seem to work fine. Ideally the
> new toolchain will have _better_ quality than the old one very soon;
> when that does, everyone can switch and the ancient stuff can finally
> die. In the meantime, consider everything I announce to be of
> experimental quality, in case I haven't been adequately clear thus
> far.

Again, I agree that is the aproach to take in the long run.  However, my
need is very urgent so I need to find something that works however I have
to do it as I'm attempting to meet a corporate deadline for some
development.

> In the meantime, Ralf and a number of others are using egcs 1.0.3a and
> binutils 2.8.1, both with patches. These may be more reliable for you.

I will evaluate these as I evaluate the tools from the SLM 0.2b release as
well.  The catch I have with gcc-2.96 is that I must have the C++
compiler as well.  But again, I'll figure out what works for me and what
doesn't.  Mainly, I needed to clarify that you guys were not doing
anything special with compiler flags, etc...

> Please don't use 0.1 any more. If you want a glibc 2.0 system, use
> Hard Hat or some other "officially sanctioned" distribution. Use 0.2b
> if you want to play with the current stuff.

Well, other than the SO problem, I've had really good luck with that, and
it's really jumpstarted my work quite far.  I've stolen bits and pieces of
what wasn't in there from Hard Hat as needed.  ;-)

I'll be setting up an 0.2b partition soon to evaluate the 2.4.0 kernel and
updated glibc as well at some point.


From owner-linux-mips@oss.sgi.com Fri Jul 14 07:06:32 2000
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To:     erik.niessen@philips.com
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Subject: Re: Graphics on a mips-board
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Hello Erik,

I have used the VGA16 framebuffer with several PCI VGA adapters.

The mapped address of 0xa00a0000 is very likely wrong.  The driver
is trying to access the framebuffer at the physical address of
0x000a0000.

If you are using a PCI based VGA chip and the linux kernel from
the SGI sources then the mapping will be wrong because the kernel
assumes a 1 to 1 mapping of PCI memory space and it doesn't map
the first megabyte of PCI memory space.  The problem is in the
ioremap function and the way that PCI memory space is mapped.

If you use the sources from the ftp.mips.com then you can get a
mapping that will allow access to the first megabyte of PCI memory.
The ioremap function in those sources is in my opinion is much
better.

Dan Aizenstros
Software Engineer
V3 Semiconductor Corp.


erik.niessen@philips.com wrote:
> 
> Hello,
> 
> I have the ide-controller running on my mips-board. My next step will be to get some graphics out of this box. On the board is an onboard graphics chip and according to the specs it is VGA compatible.
> 
> I am using the serial-console for debugging and for sending characters to the box. My source tree is based on kernel 2.2.12.
> 
> Because the chip is VGA compatible I try to get the VGA16 framebuffer running on the box. After enabling the VGA16 framebuffer I receive the following output:
> 
> Jumping to image at 800605DCh...
> Detected 16MB of memory.
> Loading R4000/MIPS32 MMU routines.
> CPU revision is: 000028a0
> Primary instruction cache 32kb, linesize 32 bytes
> Primary data cache 32kb, linesize 32 bytes
> Linux version 2.2.12 (eniessen@psvcas16) (gcc version egcs-2.90.29 980515 (egcs-
> 1.0.3 release)) #10 Thu Jul 13 13:45:19 PDT 2000
> calculating r4koff... 000f4240(1000000)
> CPU frequency 200.00 MHz
> Console: colour VGA+ 80x50
> Calibrating delay loop... 199.88 BogoMIPS
> Memory: 12652k/16380k available (616k kernel code, 2724k data)
> Checking for 'wait' instruction...  available.
> POSIX conformance testing by UNIFIX
> PCI: Probing PCI hardware
> Found SAA9730 at b2800000
> Linux NET4.0 for Linux 2.2
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v 1.1.1.1
> vga16fb: initializing
> vga16fb: mapped to 0xa00a0000
> Console: switching to colour frame buffer device 80x30
> 
> It is doing the take_over_console but when I check the output of my VGA-connector there is no signal. Someone an idea how I can debug this???
> 
> Has somebody any experience with framebuffers on a mips?
> 
> Any hints/links/tips would be welcome,
> 
> Thanks for your time,
> 
>         Erik

From owner-linux-mips@oss.sgi.com Sat Jul 15 01:57:59 2000
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From:   "Jiri Kastner jr." <indy.j@worldonline.cz>
To:     Linux-MIPS Mailing List <linux-mips@oss.sgi.com>
Subject: mknod /dev/graphics + /dev/gfx
Date:   Sat, 15 Jul 2000 10:52:18 +0200
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How to make /dev/graphics + /dev/gfx,
I did not found anywhere described major/minor etc for this devices...

I am trying to start X on Indy, here is log:

XFree86 Version 4.0 / X Window System
(protocol Version 11, revision 0, vendor release 6400)
Release Date: 8 March 2000
	If the server is older than 6-12 months, or if your card is newer
	than the above date, look for a newer version before reporting
	problems.  (see http://www.XFree86.Org/FAQ)
Operating System: Linux 2.2.13 mips [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Sat Jul 15 09:51:01 2000
(==) Using config file: "/etc/X11/XF86Config"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (??) unknown.
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) |   |-->Monitor "sgi"
(**) |   |-->Device "My Video Card"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc101"
(**) XKB: model: "pc101"
(**) Option "XkbLayout" "en_US"
(**) XKB: layout: "en_US"
(**) FontPath set to "/usr/X11R6/lib/X11/fonts/local/,/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/usr/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
(**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(II) Addressable bus resource ranges are
	[0] -1	0x00000000 - 0xffffffff (0x0) MXB
	[1] -1	0x00000000 - 0x0000ffff (0x10000) IXB
(II) OS-reported resource ranges:
(II) OS-reported resource ranges after removing overlaps with PCI:
(II) All system resource ranges:
(II) NewPort: driver for Newport Graphics Card: XL
(EE) No devices detected.

Fatal server error:
no screens found


Regards
Jiri Kastner.

From owner-linux-mips@oss.sgi.com Sun Jul 16 18:25:30 2000
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Date:   Sun, 16 Jul 2000 18:24:28 -0700
From:   Keith M Wesolowski <wesolows@foobazco.org>
To:     linux-mips@oss.sgi.com
Subject: Analysis of Samba configure oops
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Hi all,

I've been analysing the infamous Samba configure oops and I think I've
taken it as far as I can. Hopefully someone here will know what's
wrong.

The configuration: sgi indy 4400sc/200 (R4000SC V6.0), current CVS.

The trigger (from samba configuration, tests/shared_mmap.c):

#include <unistd.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>

#define DATA "conftest.mmap"

#ifndef MAP_FILE
#define MAP_FILE 0
#endif

int main()
{
	int *buf;
	int i; 
	int fd = open(DATA,O_RDWR|O_CREAT|O_TRUNC,0666);
	int count=7;

	if (fd == -1) exit(1);

	for (i=0;i<10000;i++) {
		write(fd,&i,sizeof(i));
	}

	close(fd);

	if (fork() == 0) {
		fd = open(DATA,O_RDWR);
		if (fd == -1) exit(1);

		buf = (int *)mmap(NULL, 10000*sizeof(int), 
				   (PROT_READ | PROT_WRITE), 
				   MAP_FILE | MAP_SHARED, 
				   fd, 0);

		while (count-- && buf[9124] != 55732) sleep(1);

		if (count <= 0) exit(1);

		buf[1763] = 7268;
		exit(0);
	}

	fd = open(DATA,O_RDWR);
	if (fd == -1) exit(1);

	buf = (int *)mmap(NULL, 10000*sizeof(int), 
			   (PROT_READ | PROT_WRITE), 
			   MAP_FILE | MAP_SHARED, 
			   fd, 0);

	if (buf == (int *)-1) exit(1);

	buf[9124] = 55732;

	while (count-- && buf[1763] != 7268) sleep(1);

	unlink(DATA);
		
	if (count > 0) exit(0);
	exit(1);
}

The oops:

Unable to handle kernel paging request at virtual address 0000003c, epc == 8801eb20, ra == 8803a108
$0 : 00000000 1000fc00 000003f8 00000000
$4 : 000000fb 00005eda 2acfe000 8816c8a0
$8 : 8d6d8360 ffff00ff 1000fc01 00000001
$12: 00000001 7ffffa10 00000003 00400c0c
$16: 00346e80 0d1ba79f 00000001 2acfe000
$20: 000fe000 8da1c3f8 000fd000 8d6d8360
$24: 00000014 2ac26590
$28: 8d776000 8d777e18 8d9372ac 8803a108
epc   : 8801eb20
Status: 1000fc02
Cause : 00000008
Process conftest (pid: 5154, stackpage=8d776000)
Stack: 88502c80 8d9372ac 00000001 2acf9000 000fd000 003fffff 8d9372ac 2ad07000
       00000000 2acfd000 2ac00000 00107000 00000000 00107000 00000000 003fffff
       2ac00000 00000000 8d6d8360 00000001 2acfd000 8816c8a0 0000a000 8d6d86a0
       00000000 1002e510 00000000 8803a39c 00004000 2acfd000 00000000 00000001
       88036828 880368b0 8816c8a0 8fcc9b60 000478e5 00000065 00000001 8816c8a0
       8d776000 ...
Call Trace: [<8803a39c>] [<88036828>] [<880368b0>] [<880296b0>] [<88025208>] [<8
802c914>] [<88013ef8>] [<8802cb8c>] [<88010c28>] [<88010c28>]
Code: 8f83002c  8d040014  8ce5003c <8c62003c> 10a2007d  30840004  3c028819  8c42

>>RA;  8803a108 <filemap_sync+204/488>
>>PC;  8801eb20 <r4k_flush_cache_page_s128d16i16+78/324>   <=====
Trace; 8803a39c <filemap_unmap+10/1c>
Trace; 88036828 <exit_mmap+78/198>
Trace; 880368b0 <exit_mmap+100/198>
Trace; 880296b0 <mmput+40/7c>
Trace; 88025208 <sys_rt_sigaction+88/e8>
Code;  8801eb14 <r4k_flush_cache_page_s128d16i16+6c/324>
0000000000000000 <_PC>:
Code;  8801eb14 <r4k_flush_cache_page_s128d16i16+6c/324>
   0:   8f83002c  lw      $v1,44($gp)
Code;  8801eb18 <r4k_flush_cache_page_s128d16i16+70/324>
   4:   8d040014  lw      $a0,20($t0)
Code;  8801eb1c <r4k_flush_cache_page_s128d16i16+74/324>
   8:   8ce5003c  lw      $a1,60($a3)
Code;  8801eb20 <r4k_flush_cache_page_s128d16i16+78/324>   <=====
   c:   8c62003c  lw      $v0,60($v1)   <=====
Code;  8801eb24 <r4k_flush_cache_page_s128d16i16+7c/324>
  10:   10a2007d  beq     $a1,$v0,208 <_PC+0x208> 8801ed1c <r4k_flush_cache_page_s128d16i16+274/324>
Code;  8801eb28 <r4k_flush_cache_page_s128d16i16+80/324>
  14:   30840004  andi    $a0,$a0,0x4
Code;  8801eb2c <r4k_flush_cache_page_s128d16i16+84/324>
  18:   3c028819  lui     $v0,0x8819
Code;  8801eb30 <r4k_flush_cache_page_s128d16i16+88/324>
  1c:   8c420000  lw      $v0,0($v0)

The matching code (arch/mips/mm/r4xx0.c:1600):

        if(mm->context != current->mm->context) {

The analysis:

The fault address is 0x3c. The offset of mm in current is 0x2c. Thus
the immediate cause appears to be that current->mm is 0x10, obviously
nonsense.

Further investigation yields this call sequence: exit_mmap =>
filemap_unmap => filemap_sync => filemap_sync_pmd_range =>
filemap_sync_pte_range => filemap_sync_pte => flush_cache_page

Anybody?

-- 
Keith M Wesolowski <wesolows@foobazco.org> http://foobazco.org/~wesolows/
(( Project Foobazco Coordinator and Network Administrator )) aiieeeeeeee!
"The list of people so amazingly stupid they can't even tie their shoes?"
"Yeah, you know, /etc/passwd."

From owner-linux-mips@oss.sgi.com Mon Jul 17 10:06:51 2000
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Date:   Mon, 17 Jul 2000 10:05:34 -0700
From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     Keith M Wesolowski <wesolows@foobazco.org>
Cc:     linux-mips@oss.sgi.com
Subject: Re: Analysis of Samba configure oops
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On Sun, Jul 16, 2000 at 06:24:28PM -0700, Keith M Wesolowski wrote:

Responding to my own mail, yeesh. I was obviously suffering a dumbass
attack when I wrote this.

> Code;  8801eb1c <r4k_flush_cache_page_s128d16i16+74/324>
>    8:   8ce5003c  lw      $a1,60($a3)
> Code;  8801eb20 <r4k_flush_cache_page_s128d16i16+78/324>   <=====
>    c:   8c62003c  lw      $v0,60($v1)   <=====
> 
> The fault address is 0x3c. The offset of mm in current is 0x2c. Thus
> the immediate cause appears to be that current->mm is 0x10, obviously
> nonsense.

The interesting bit is not current->mm, but current->mm->context. The
offset of context is 60 as shown above in the disassembly. 60 = 3c, so
it's clear that current->mm is in fact NULL.

Hope this makes things a bit clearer.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

From owner-linux-mips@oss.sgi.com Mon Jul 17 18:54:04 2000
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From:   "A. Wrasman" <awrasman@enchanted.net>
Date:   Mon, 17 Jul 2000 20:53:03 -0500
To:     linux-mips@oss.sgi.com
Subject: Okay, lost
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Okay, I can't seem to get any of the pre-compiled linux kernels  after the 2.2.14 one on oss.sgi.com to boot on my Indy.

I get this type of error:
Exception: <vector=Normal>
Status register: 0x10044803<CU0,CH,IM7,IM4,IPL=???,MODE=KERNEL,EXL,IE>
Cause register: 0x8034<CE=0,IP8,EXC=TRAP>
Exception PC: 0x88240004, Exception RA: 0x8816d610
Processor Trap exception at address 0xffffffff
Local I/O interrupt register 1: 0x80 <VR/GIO2>
	Saved user regs in hex (&gpda 0xa8740e48, &_regs 0xa8741048):
	arg: a8740000 28 8847ff80 a
	tmp: a8740000 8480 88002000 8480 881932a0 1 fffffffc 47dfa8
	sve: a8740000 0 0 0 0 0 0 0
	t8 a8740000 t9 0 at 0 v0 0 v1 0 k1 88002000
	gp a8740000 fp 0 sp 0 ra 0

PANIC: unexpected exception


Or something similar.



From owner-linux-mips@oss.sgi.com Mon Jul 17 21:02:24 2000
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On Mon, Jul 17, 2000 at 08:53:03PM -0500, A. Wrasman wrote:

> Okay, I can't seem to get any of the pre-compiled linux kernels  after the 2.2.14 one on oss.sgi.com to boot on my Indy.
> I get this type of error:
> Exception: <vector=Normal>

I've no idea what kernels you're using. Try
/pub/linux/mips/mips-linux/simple/kernels/vmlinux-000717-38400 if you
want to try a post-2.2 kernel. It really should work.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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On Mon, Jul 17, 2000 at 08:53:03PM -0500, A. Wrasman wrote:

> Okay, I can't seem to get any of the pre-compiled linux kernels  after the 2.2.14 one on oss.sgi.com to boot on my Indy.
> 
> I get this type of error:
> Exception: <vector=Normal>
> Status register: 0x10044803<CU0,CH,IM7,IM4,IPL=???,MODE=KERNEL,EXL,IE>
> Cause register: 0x8034<CE=0,IP8,EXC=TRAP>
> Exception PC: 0x88240004, Exception RA: 0x8816d610
> Processor Trap exception at address 0xffffffff
> Local I/O interrupt register 1: 0x80 <VR/GIO2>
> 	Saved user regs in hex (&gpda 0xa8740e48, &_regs 0xa8741048):
> 	arg: a8740000 28 8847ff80 a
> 	tmp: a8740000 8480 88002000 8480 881932a0 1 fffffffc 47dfa8
> 	sve: a8740000 0 0 0 0 0 0 0
> 	t8 a8740000 t9 0 at 0 v0 0 v1 0 k1 88002000
> 	gp a8740000 fp 0 sp 0 ra 0
> 
> PANIC: unexpected exception

Now that looks like a kernel compiled by somebody who doesn't read
documentation, see http://oss.sgi.com/mips/mips-howto.html.  In short:
remove the -N linker flag from arch/mips/Makefile.

  Ralf

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On Mon, Jul 17, 2000 at 10:05:34AM -0700, Keith M Wesolowski wrote:

> Responding to my own mail, yeesh. I was obviously suffering a dumbass
> attack when I wrote this.
> 
> > Code;  8801eb1c <r4k_flush_cache_page_s128d16i16+74/324>
> >    8:   8ce5003c  lw      $a1,60($a3)
> > Code;  8801eb20 <r4k_flush_cache_page_s128d16i16+78/324>   <=====
> >    c:   8c62003c  lw      $v0,60($v1)   <=====
> > 
> > The fault address is 0x3c. The offset of mm in current is 0x2c. Thus
> > the immediate cause appears to be that current->mm is 0x10, obviously
> > nonsense.
> 
> The interesting bit is not current->mm, but current->mm->context. The
> offset of context is 60 as shown above in the disassembly. 60 = 3c, so
> it's clear that current->mm is in fact NULL.
> 
> Hope this makes things a bit clearer.

Indeed, it does.  I've commited a patch for this bug to cvs and would like
to hear reports.

  Ralf

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Subject: Re: Okay, lost
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 > > Okay, I can't seem to get any of the pre-compiled linux kernels  after the 2.2.14 one on oss.sgi.com to boot on my Indy.
 > > 
 > > I get this type of error:
 > > Exception: <vector=Normal>
 > > Status register: 0x10044803<CU0,CH,IM7,IM4,IPL=???,MODE=KERNEL,EXL,IE>
 > > Cause register: 0x8034<CE=0,IP8,EXC=TRAP>
 > > Exception PC: 0x88240004, Exception RA: 0x8816d610
 > > Processor Trap exception at address 0xffffffff
 > > Local I/O interrupt register 1: 0x80 <VR/GIO2>
 > > 	Saved user regs in hex (&gpda 0xa8740e48, &_regs 0xa8741048):
 > > 	arg: a8740000 28 8847ff80 a
 > > 	tmp: a8740000 8480 88002000 8480 881932a0 1 fffffffc 47dfa8
 > > 	sve: a8740000 0 0 0 0 0 0 0
 > > 	t8 a8740000 t9 0 at 0 v0 0 v1 0 k1 88002000
 > > 	gp a8740000 fp 0 sp 0 ra 0
 > > 
 > > PANIC: unexpected exception
 > 
 > Now that looks like a kernel compiled by somebody who doesn't read
 > documentation, see http://oss.sgi.com/mips/mips-howto.html.  In short:
 > remove the -N linker flag from arch/mips/Makefile.

I had the same problem on one of my machines.  The -N linker flag was
not the solution.  Note that the kernels ran on other machines.  I
only got this for the 2.4, not 2.2.

Ulf

From owner-linux-mips@oss.sgi.com Tue Jul 18 20:24:28 2000
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When I was bitten by the infamous '-N' bug, it seems to me the 
exception I got said "UTLB" in it somewhere.  This one doesn't.
So maybe that's not the problem.

And I think I might be being bitten by the same thing.  All 2.4 
kernels I've tried die with what seems to be a similar error on 
my Indigo2 (R4400 200Mhz).  I thought I read somewhere something 
about XZ graphics causing problems and boards should be 
removed... why? Could this be the cause? I have XZ in my 
machine.... I want to try a few more things before sounding too 
many alarms though...

john.c
- --
John Clemens
clemens@alum.rpi.edu


---------- Original Message ----------------------------------
From:   Ralf Baechle <ralf@oss.sgi.com>
Date:   Tue, 18 Jul 2000 05:23:09 +0200

>On Mon, Jul 17, 2000 at 08:53:03PM -0500, A. Wrasman wrote:
>
>> Okay, I can't seem to get any of the pre-compiled linux kernels  after the 2.2.14 one on oss.sgi.com to boot on my Indy.
>> 
>> I get this type of error:
>> Exception: <vector=Normal>
>> Status register: 0x10044803<CU0,CH,IM7,IM4,IPL=???,MODE=KERNEL,EXL,IE>
>> Cause register: 0x8034<CE=0,IP8,EXC=TRAP>
>> Exception PC: 0x88240004, Exception RA: 0x8816d610
>> Processor Trap exception at address 0xffffffff
>> Local I/O interrupt register 1: 0x80 <VR/GIO2>
>> 	Saved user regs in hex (&gpda 0xa8740e48, &_regs 0xa8741048):
>> 	arg: a8740000 28 8847ff80 a
>> 	tmp: a8740000 8480 88002000 8480 881932a0 1 fffffffc 47dfa8
>> 	sve: a8740000 0 0 0 0 0 0 0
>> 	t8 a8740000 t9 0 at 0 v0 0 v1 0 k1 88002000
>> 	gp a8740000 fp 0 sp 0 ra 0
>> 
>> PANIC: unexpected exception
>
>Now that looks like a kernel compiled by somebody who doesn't read
>documentation, see http://oss.sgi.com/mips/mips-howto.html.  In short:
>remove the -N linker flag from arch/mips/Makefile.
>
>  Ralf
>

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On Tue, Jul 18, 2000 at 05:18:28AM +0200, Ralf Baechle wrote:

> Indeed, it does.  I've commited a patch for this bug to cvs and would like
> to hear reports.

I am pleased to report that without this fix I observe the
oft-reported problem when using two disks simultaneously on IP22:

  SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 27010000
   I/O error: dev 08:11, sector 1885720

but with this fix I no longer see this. How many more bugs will this
fix I wonder...

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

From owner-linux-mips@oss.sgi.com Wed Jul 19 07:07:12 2000
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On Fri, 14 Jul 2000, Ralf Baechle wrote:

> We have various known problems with the various binutils version around.
> We're working on getting a current snapshot of binutils working
> properly but right now we still have various problems, therefore
> egcs 1.0.3a + binutils 2.8.1 is still the recommended version.

 I have binutils 2.10 and gcc 2.95.2 which appear to be stable, i.e. I
haven't observed any problems recently.  I may publish patches if anyone
is interested.  I may see if I can arrange to publish RPM packages as
well.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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Subject: Re: Simple Linux/MIPS 0.2b 
In-reply-to: Your message of Wed, 19 Jul 2000 16:04:58 +0200.
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Hi.

In message <Pine.GSO.3.96.1000719160110.21239D-100000@delta.ds2.pg.gda.pl>you w
rite:
> On Fri, 14 Jul 2000, Ralf Baechle wrote:
> 
> > We have various known problems with the various binutils version around.
> > We're working on getting a current snapshot of binutils working
> > properly but right now we still have various problems, therefore
> > egcs 1.0.3a + binutils 2.8.1 is still the recommended version.
> 
>  I have binutils 2.10 and gcc 2.95.2 which appear to be stable, i.e. I
> haven't observed any problems recently.  I may publish patches if anyone
> is interested.  I may see if I can arrange to publish RPM packages as
> well.
Great!
Yes, I'm very interested in it.
(Although I'm mipsel (linux-vr) guy, but it will be very helpful.)
----
Kawashima

From owner-linux-mips@oss.sgi.com Wed Jul 19 09:05:23 2000
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From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
cc:     linux-mips@oss.sgi.com, linuxce-devel@linuxce.org
Subject: Re: Simple Linux/MIPS 0.2b
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On Wed, 19 Jul 2000, Maciej W. Rozycki wrote:
> I have binutils 2.10 and gcc 2.95.2 which appear to be stable, i.e. I
> haven't observed any problems recently.  I may publish patches if anyone
> is interested.  I may see if I can arrange to publish RPM packages as
> well.

Please do.  There's many of us that would be interested.  I for one am
having zero success.

I'm cross posting this from the SGI list to the linuxce list because even
though one is big endian and the other is little endian, we all still use
the same tools, and I simply need help or suggestions here regardless of
the source.

The short explination of what I'm doing is that I work for a company that
wishes to use NEC vr or QED mips processors in some products using linux
as the "embedded OS".  I put quoates on that because our product
environment is much fuller than the traditional embedded environment, to
the point that we actually need a full blown *nix running under the hood.
We plan to run the embedded processors big endian.  We are using some SGI
Indy boxes as development/eval stations at the moment as we evaluate
porting our code base.  The nice thing about the Indy is that the linux
port and user land stuff is still all compiled 32 bit R3000 style, meaning
that its binary compatible with our embedded systems, but a hell of a lot
nicer to work on.  We already know that user space binaries that run on
the Indy work identically within our embeded environment.  That much is
cool.

However, the problem is that I am having only limited success compiling
user space stuff myself on the Indy, be it our own code, or any of the
common distribution libs/apps. I cannot compile shared objects of good
size and expect apps built from them to work.  Xlibs, lesstif, etc and
apps built against them just bus error. However if I go to one of the
sites and tear open a prebuilt rpm for xlibs, or what ever, I can build
against that and get an app to work just fine, but I cannot build the
libraries themselves.  I've tried every version of gcc/egcs/binutils
that's supposed to work, and in every combination.  However, I'm just not
able to duplicate the kind of success that others appear to be having.  
Smaller things usually work.  I've gotten sources from CVS, applied
patches, even tried cross compiling, all to no avail.  Unfortunately, it's
critical that I be able to build things like that.

Anyone that's having good success, please give me some info on what your
build system/process looks like.  I'm completely clueless why I'm not
having the level of success that others appear to be having.

Started with Simple Linux 0.1, glibc-2.0.6, kernel 2.2.14, egcs-1.1.2,
binutils 2.9.5, on Indy 128M ram, R4400SC 200MHz, XL-24.  Have tried the
"manhattan" or "hard hat 5.1" SGI distro, but have never been able to get
that to install.  The 2.1.100 kernel included panics on the Indy due to
page faults in an interupt handler (says so on the screen dump).  Tried
swapping that out for the 2.2.14 kernel from Simle Linux which runs very
stable on that box, but there appears to be a kernel/glibc mismatch at
that point because things don't work right after the boot.  Would like to
try the debian distro, but cannot find a big endian root image to install
with, the site with the eb pacakages seems to be down, and cannot find the
userland utility to unpack the .deb files, so this one is out completely
at the moment.

Have tried native compiles with binutils 2.8.1, egcs-1.0.2, gcc-2.7.2. The
gcc-2.7.2/bin-2.8.1 combo was the closest that I've come.  Was able to
comple lesstif against Xlibs stolen from Hard Hat 5.1 distro and the
programs in the test directory all seemed to work. However, could not get
libs built from XFree86 4.0.1 or CVS to work.  Builds, but everything bus
errors.  Unfortunately, our c++ apps will not compile with g++-2.7.2 even
if that did work.

To clarify, I have no interest in the XServer, just the xlibs so I can
throw output out over the network.

Have also tried cross compiling using binutils 2.8.1 and egcs-1.0.3a on
an x86 box, but still same results.  Little things work, big things just
bus error.

Thanks for any sugestions.  I'm certainly stumped at this point.


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On Wed, Jul 19, 2000 at 11:54:59AM -0300, J. Scott Kasten wrote:
> try the debian distro, but cannot find a big endian root image to install
> with, the site with the eb pacakages seems to be down, and cannot find the
> userland utility to unpack the .deb files, so this one is out completely
> at the moment.

A .deb file is just an ar(1) archive.  Use "ar xv foo.deb" to unpack.

-andy
-- 
Andy Isaacson <adi@mr-happy.com> http://web.mr-happy.com/~adi/

From owner-linux-mips@oss.sgi.com Wed Jul 19 10:20:54 2000
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On Wed, Jul 19, 2000 at 11:54:59AM -0300, J. Scott Kasten wrote:

> However, the problem is that I am having only limited success compiling
> user space stuff myself on the Indy, be it our own code, or any of the
> common distribution libs/apps. I cannot compile shared objects of good
> size and expect apps built from them to work.  Xlibs, lesstif, etc and
> apps built against them just bus error. However if I go to one of the

This is interesting. I have seen plenty of problems (with several
toolchains) building pic objects and then using -static to link. But
linking against shared objects seems to work fine. I have successfully
built the X libs (4.0 + Guido's newport patch) with the toolchain
included in Simple 0.2b, and have run applications linked against
them. The entire system was built from the same toolchain.

> swapping that out for the 2.2.14 kernel from Simle Linux which runs very
> stable on that box, but there appears to be a kernel/glibc mismatch at
> that point because things don't work right after the boot.  Would like to

Could you explain in greater detail? For example, the userland in
Simple 0.2b will not work with kernel < 2.3.51, and will give an
error to that effect if you try to boot it with 2.2.14. This is
intentional; it seems for some reason that glibc 2.2 userland on a 2.2
kernel will have, actually, the kind of behaviour you are observing.

> errors.  Unfortunately, our c++ apps will not compile with g++-2.7.2 even
> if that did work.

And unfortunately we still don't have a working c++ compiler for
2.96. Hopefully we're close though.

I almost wonder if your hardware is broken somehow, as the system you
describe is identical in every way to the one I am using to develop
Simple.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

From owner-linux-mips@oss.sgi.com Wed Jul 19 11:52:23 2000
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On Wed, 19 Jul 2000, Keith M Wesolowski wrote:

> On Wed, Jul 19, 2000 at 11:54:59AM -0300, J. Scott Kasten wrote:
> > However, the problem is that I am having only limited success compiling
> > user space stuff myself on the Indy, be it our own code, or any of the
> > common distribution libs/apps. I cannot compile shared objects of good
> > size and expect apps built from them to work.  Xlibs, lesstif, etc and
> > apps built against them just bus error. However if I go to one of the
> 
> This is interesting. I have seen plenty of problems (with several
> toolchains) building pic objects and then using -static to link. But
> linking against shared objects seems to work fine. I have successfully
> built the X libs (4.0 + Guido's newport patch) with the toolchain
> included in Simple 0.2b, and have run applications linked against
> them. The entire system was built from the same toolchain.

I pulled down 0.2b yesterday an will be giving that a whirl today of
course.  However, yes, this problem is interesting.  I've used GDB just
enough on small apps compiled against xlibs/lesstif (things in the lesstif
test directory) to gather limited info on the problem.  Some calls into
the libraries work, however some fail.  I've not isolated the point of
failure, but when it does, the program counter is way off in impossible
memory, and gdb has lost the program call stack so it cannot tell me where
I am, or how I got there.  This behavior is not random, it appears that
it's exactly reproduceable, so with sufficient effort could presumably be
tracked down.  However, my pressing need is simply to get a tool chain
that works within reason.  Although I'm interested in doing some general
sluthing to do my part to improve the quality of publicly available tools,
unfortunately that's a luxury that must wait a little while when you have
corporate deadlines to meet.
 
> > swapping that out for the 2.2.14 kernel from Simle Linux which runs very
> > stable on that box, but there appears to be a kernel/glibc mismatch at
> > that point because things don't work right after the boot.  Would like to
> 
> Could you explain in greater detail? For example, the userland in
> Simple 0.2b will not work with kernel < 2.3.51, and will give an
> error to that effect if you try to boot it with 2.2.14. This is
> intentional; it seems for some reason that glibc 2.2 userland on a 2.2
> kernel will have, actually, the kind of behaviour you are observing.

Simple 0.1 has run very stable for me (meaning no crashes, lockups,
etc...) using the 2.2.14 kernel.  The only problem I have is building my
own shared objects.  I've beat that system for days on end with large
compiles, heavy NFS traffic, etc. and not had it mis-behave.  

I tried booting the 5.1 install image using the included kernel (2.1.100 I
beleive), but it either hangs after initializing eth0, or panics sometime
there after with a "page fault in irq handler" message.

On a whim, I just plunked down 2.2.14 which I know runs smooth and tried
booting the 5.1 install.  I then get a message "Cannot open initial
console."  Yes, the dev nodes are in place and so forth.  Some time ago, I
had gotten past that, but don't remember how.  Anyway, the result was that
things like fdisk could not write the disk and on and on.  This sounds
like a glibc missmatch.  I could try slipping that in too and see what
happens.

In order to move quickly, I had pulled a few libraries from the 5.1 and
plunked them down under Simple to try some things, having checked
dependencies and so forth of course.  I fully admit that such a move could
indeed be part of my problem.  However it's the libraries that I've
stolen in this fashion that work!  Anyway, point is, I've tried moving to
a more complete distro where things have been uniformly compiled with the
same tool chain to see if the shared object problem goes away.  However,
I've not been successfull in that endeavor either.

> > errors.  Unfortunately, our c++ apps will not compile with g++-2.7.2 even
> > if that did work.
> 
> And unfortunately we still don't have a working c++ compiler for
> 2.96. Hopefully we're close though.

I'd be happy to use different c and c++ compilers, if it worked well.
However, it is of course preferable to remain consistent.  There would
even be an interest in modifying our own C++ code so that templates would
get through g++ 2.7.2 if we had too.  However, it's got to work before we
can make that effort.

> I almost wonder if your hardware is broken somehow, as the system you
> describe is identical in every way to the one I am using to develop
> Simple.

Beleive me, the thought has crossed my mind.  We have 3 identical boxes
that were distributed through our different project teams.  I will
be trying this on one of those minimum as well.


Thanks again for your assistance.

-JSK-


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I have several steps in my build process where I use the linker to link
a pure binary file (usually a zipped image) into a relocatable elf file,
which is then linked with other elf files to create a final image. I am
running the mipsel-linux cross compiler tool chain on an i386. After
upgrading the tools to egcs 1.0.3a-2 the linking of this binary file
fails.

Example:
mipsel-linux-ld -T link.script -r -b binary image.gz -o image.o

link.script file contents are:
OUTPUT_FORMAT("elf32-littlemips")
OUTPUT_ARCH(mips)
SECTIONS
{
    .data :
    {
        image_start = .;
        *(.data)
        image_end = .;
      }
}

The normal output from the old linker was:
mipsel-linux-ld: image.gz: compiled for a little endian system and
target is little endian

The new linker gives:
mipsel-linux-ld: image.gz: compiled for a little endian system and
target is big endian
File in wrong format: failed to merge target specific data of file
image.gz?
make[1]: *** [image.o] Error 1

I have been unable to figure out why the linker thinks the target is big
endian and have yet to find a way to get this to work. Any ideas?
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Brady Brown (bbrown@ti.com)       Work:(801)619-6103
Texas Instruments: Broadband Access Group
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



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I am trying to get DDB5476 working and got puzzled by the interrupt
vector thing.

The on-board ether chip, a PCI device, apparently indicates it generates
interrupts and has an interrupt vector of 123.  Later on, when
tulip_open tries to call request_irq(123, ...), it returns with an error
because the vector is greater than 32.

Here are my questions :

1. Who wrote 123 to the ether chip?  That does not sound right to me at
first place.

2. Assuming the ether chip returns 0xFF (an invalid interrupt vector,
which I believe is the correct behavior), which part of Linux is
responsible to figure out the correct interrupt vector?  Here we do have
the interrupt pin information and interrupt routing information.  So we
should be able to tell what is the right interrupt vector number.

Any hints?  Thanks.

Jun

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On Tue, Jul 18, 2000 at 11:23:22PM -0400, clemej wrote:

> When I was bitten by the infamous '-N' bug, it seems to me the 
> exception I got said "UTLB" in it somewhere.  This one doesn't.
> So maybe that's not the problem.
> 
> And I think I might be being bitten by the same thing.  All 2.4 
> kernels I've tried die with what seems to be a similar error on 
> my Indigo2 (R4400 200Mhz).  I thought I read somewhere something 
> about XZ graphics causing problems and boards should be 
> removed... why? Could this be the cause? I have XZ in my 
> machine.... I want to try a few more things before sounding too 
> many alarms though...

The XZ graphics isn't supported nor do we properly detect and avoid it
which is why the kernel blows up on XZ.  Now, Ulf had the same problem
and as he knows about this issue I guess there is a real problem
hidden behind that ...

  Ralf

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On Tue, Jul 18, 2000 at 09:33:15PM -0700, Keith M Wesolowski wrote:

> > Indeed, it does.  I've commited a patch for this bug to cvs and would like
> > to hear reports.
> 
> I am pleased to report that without this fix I observe the
> oft-reported problem when using two disks simultaneously on IP22:
> 
>   SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 27010000
>    I/O error: dev 08:11, sector 1885720
> 
> but with this fix I no longer see this. How many more bugs will this
> fix I wonder...

Funny.  It's unobvious why this happend but I gratefully accept this
bug being fixed as well.  Now that this cure was so successful I'll have
to research if mips64 is also affected.

  Ralf

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Hi Brady,

This is fixed in the current CVS version of binutils.  I have no idea
what version of ld you are running, but if you look at the function
_bfd_mips_elf_merge_private_bfd_data in elf32-mips.c you'll see that
the check ibfd->xvec->byteorder != BFD_ENDIAN_UNKOWN is forgotten in
the if statement.

Ulf

Brady Brown writes:
 > I have several steps in my build process where I use the linker to link
 > a pure binary file (usually a zipped image) into a relocatable elf file,
 > which is then linked with other elf files to create a final image. I am
 > running the mipsel-linux cross compiler tool chain on an i386. After
 > upgrading the tools to egcs 1.0.3a-2 the linking of this binary file
 > fails.
 > 
 > Example:
 > mipsel-linux-ld -T link.script -r -b binary image.gz -o image.o
 > 
 > link.script file contents are:
 > OUTPUT_FORMAT("elf32-littlemips")
 > OUTPUT_ARCH(mips)
 > SECTIONS
 > {
 >     .data :
 >     {
 >         image_start = .;
 >         *(.data)
 >         image_end = .;
 >       }
 > }
 > 
 > The normal output from the old linker was:
 > mipsel-linux-ld: image.gz: compiled for a little endian system and
 > target is little endian
 > 
 > The new linker gives:
 > mipsel-linux-ld: image.gz: compiled for a little endian system and
 > target is big endian
 > File in wrong format: failed to merge target specific data of file
 > image.gz?
 > make[1]: *** [image.o] Error 1
 > 
 > I have been unable to figure out why the linker thinks the target is big
 > endian and have yet to find a way to get this to work. Any ideas?
 > --
 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 > Brady Brown (bbrown@ti.com)       Work:(801)619-6103
 > Texas Instruments: Broadband Access Group
 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 > 
 > 

From owner-linux-mips@oss.sgi.com Wed Jul 19 16:41:37 2000
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On Wed, Jul 19, 2000 at 04:10:12PM +0200, Ralf Baechle wrote:

> Funny.  It's unobvious why this happend but I gratefully accept this
> bug being fixed as well.  Now that this cure was so successful I'll have
> to research if mips64 is also affected.

Klaus and I have investiagated further. Apparently the problem does
not manifest itself with cp -rd or similar, but using tar cf - | tar
xf - does trigger it. It's not clear why this is.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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On Wed, 19 Jul 2000, Keith M Wesolowski wrote:
> I have successfully
> built the X libs (4.0 + Guido's newport patch) with the toolchain
> included in Simple 0.2b, and have run applications linked against
> them. The entire system was built from the same toolchain.

There is one thing at this point that would really really help.  I need to
establish a reference point and follow someone elses procedures exactly to
determine what the source of my problem is and why some of you are not
seeing this to the extent that I am.  In this way, we can verify whether
or not there is a bonified problem, and if it is with the tools, maybe get
it fixed.

I think the x libs are a good place to start, because I can guarantee that
I'm breaking those, yet you claim to have them working.  I also know that
I can grab someone else's prebuilt and compile against those and get
working apps.  Thus the x libs demonstrate all the "features" of the
problem that I'm encountering.

If you can answer some questions, I can try to parallel what you have
done:

#1  You say you built X using the tool chain for Simple 0.2b.  Does that
mean you compiled it natively on an Indy with what was effectively Simple
0.2b installed?  Or was it cross compiled using the same releases of the
tools?

#2 You say X 4.0.  Can you be more specific?  Was it an official 4.0
tarball on the xfree ftp site?  Pulled from CVS?  Or was it really a
4.0.1?  Basicly, I want the exact same starting sources that you used.

#3 Where can I get Guido's X patch?

#4 What if anything did you add to the host.def or other config files
before doing "make World"?


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Jun Sun wrote:
> 
> 2. Assuming the ether chip returns 0xFF (an invalid interrupt vector,
> which I believe is the correct behavior), which part of Linux is
> responsible to figure out the correct interrupt vector?  

Never mind.  I found the place.  It is in pcibios_fixup_irqs().

Jun

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On Wed, Jul 19, 2000 at 07:56:25PM -0300, J. Scott Kasten wrote:

> I think the x libs are a good place to start, because I can guarantee that
> I'm breaking those, yet you claim to have them working.  I also know that
> I can grab someone else's prebuilt and compile against those and get
> working apps.  Thus the x libs demonstrate all the "features" of the
> problem that I'm encountering.

Sure.

> #1  You say you built X using the tool chain for Simple 0.2b.  Does that
> mean you compiled it natively on an Indy with what was effectively Simple
> 0.2b installed?  Or was it cross compiled using the same releases of the
> tools?

It was built natively. You will need to obtain cpp from egcs 1.1.2 and
place it into /lib in order to accomplish this. You can get this at
ftp://oss.sgi.com/pub/linux/mips/mips-linux/simple/userland-0.2b/bin/cpp

> #2 You say X 4.0.  Can you be more specific?  Was it an official 4.0
> tarball on the xfree ftp site?  Pulled from CVS?  Or was it really a
> 4.0.1?  Basicly, I want the exact same starting sources that you used.

It is XFree86 4.0 official + the 000531 version of Guido's patch.

> #3 Where can I get Guido's X patch?

ftp://oss.sgi.com/pub/linux/mips/X/source/newport_000531.diff.gz

> #4 What if anything did you add to the host.def or other config files
> before doing "make World"?

I changed nothing.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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On Wed, Jul 19, 2000 at 07:56:25PM -0300, J. Scott Kasten wrote:

> There is one thing at this point that would really really help.  I need to
> establish a reference point and follow someone elses procedures exactly to
> determine what the source of my problem is and why some of you are not
> seeing this to the extent that I am.  In this way, we can verify whether
> or not there is a bonified problem, and if it is with the tools, maybe get
> it fixed.

Before you get carried away with this, I should point out that I've
been looking at this problem in more detail. Many of my X programs
don't work either; they get SEGV, never bus errors. I suspect this is
a glibc bug. I can run a few programs, such as xhost and the server
itself. I did have a full X setup, including a working server, under
0.1. That was built exactly the same way I've done it under 0.2b. You
may wish to try both and see which works better.

If you like, I will return to 0.1 and duplicate my previous efforts. I
can then describe the exact procedure to you.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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From:   "J. Scott Kasten" <jsk@tetracon-eng.net>
To:     Keith M Wesolowski <wesolows@chem.unr.edu>
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Subject: Re: Simple Linux/MIPS 0.2b
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Great.  I'll get in sync with that and see where it takes me.

I did try recompiling our own C++ code on one of the other Indy boxes to
check out the possibility of a hardware problem.  That one was also
running Simple 0.1.  It exhibeted the same bus error.  This alone is not
conclusive one way or another.  That code was developed on x86 and I don't
know if that group ever tested it on Sparc or other risc for
endian/alignment issues in the data structures.  Thus any combination of
the code, compiler, machine could be broken.  Further analysis will tell.

My company seems comitted to using mips, as opposed to moving to any other
arch as I was told to "make it work regardless" this afternoon, even if it
meant changeing their time line a little.  They seem interested in
throwing some people at this if it comes down to fixing the tools to get
the job done.  For arguments sake, if that were the case, what should we
be working with and what people on the mailing lists should I start
getting in touch with?

Thanks again for your input Keith!


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On Wed, 19 Jul 2000, Keith M Wesolowski wrote:

> On Wed, Jul 19, 2000 at 07:56:25PM -0300, J. Scott Kasten wrote:
> 
> > There is one thing at this point that would really really help.  I need to
> > establish a reference point and follow someone elses procedures exactly to
> > determine what the source of my problem is and why some of you are not
> > seeing this to the extent that I am.  In this way, we can verify whether
> > or not there is a bonified problem, and if it is with the tools, maybe get
> > it fixed.
> 
> Before you get carried away with this, I should point out that I've
> been looking at this problem in more detail. Many of my X programs
> don't work either; they get SEGV, never bus errors. I suspect this is
> a glibc bug. I can run a few programs, such as xhost and the server
> itself. I did have a full X setup, including a working server, under
> 0.1. That was built exactly the same way I've done it under 0.2b. You
> may wish to try both and see which works better.

Alright, that's starting to sound more like what I'm seeing.  Some things
work, some don't.  Some SEGV, some bus error.  The bugs float from one
place to another depending on what tools I used to build.  My litimus test
has been to launch an xterm over the network, xeyes, and xwininfo.  If
those work, then I proceed to building lesstif against that set.
Unfortunately, only libraries that others have built have gotten me to the
lesstif stage.

In fact, I've even had difficulty trying to build the compiler itself
natively.  With egcs-1.03a (patched) it would not natively build using the
egcs-1.1.2, or gcc-2.7.2.  Basicly at the point where the build starts
launching those "genXXXXX" functions, they start segv or bus erroring.
The ones that break depend on which compiler was used.  Thus I was forced
to try that one as a cross compiler, although I just found an rpm for it
so I can finally give it a whirl natively.

> If you like, I will return to 0.1 and duplicate my previous efforts. I
> can then describe the exact procedure to you.

Thanks, but not necessary just yet.  I'll try using the X sources and
patch you mentioned on both Simple 0.1 and Simple 0.2b and see what
happens.  We can then compare notes to see what workes, what doesn't.  At
that point I'm confident that we can rule out a lot of the variables and
get down to demonstrating specific problems with the tools themselves.
Also at that point, I can start stuffing the broken binaries into one of
our eval boards and have our hardware people run it against a logic
analyser so we can get to the bottom of some of these things quickly if
they'll let me have the resources.  We're having a staff meeting in the
morning about exactly that. ;-)


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On Wed, Jul 19, 2000 at 04:40:15PM -0700, Keith M Wesolowski wrote:

> > Funny.  It's unobvious why this happend but I gratefully accept this
> > bug being fixed as well.  Now that this cure was so successful I'll have
> > to research if mips64 is also affected.
> 
> Klaus and I have investiagated further. Apparently the problem does
> not manifest itself with cp -rd or similar, but using tar cf - | tar
> xf - does trigger it. It's not clear why this is.

I don't see why this should make a difference to SCSI.  But the tar variant
that's two processes and lots of context switching between them.

  Ralf

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To:     "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc:     "J. Scott Kasten" <jsk@tetracon-eng.net>,
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Subject: Re: Simple Linux/MIPS 0.2b
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On Wed, Jul 19, 2000 at 04:04:58PM +0200, Maciej W. Rozycki wrote:

> > We have various known problems with the various binutils version around.
> > We're working on getting a current snapshot of binutils working
> > properly but right now we still have various problems, therefore
> > egcs 1.0.3a + binutils 2.8.1 is still the recommended version.
> 
>  I have binutils 2.10 and gcc 2.95.2 which appear to be stable, i.e. I
> haven't observed any problems recently.  I may publish patches if anyone
> is interested.  I may see if I can arrange to publish RPM packages as
> well.

Anyway, have you tried to rebuild an entire Linux distribution with your
toolset, including kernel, static (Like rpm or ldconfig) and dynamic PIC
code?  If that was successful I'd really like to recommend your toolset
as the new standard - especially binutils 2.8.1 are just too rotten.
Example:

[ralf@indy /tmp]$ echo 'main(){}' > c.c;gcc -o c c.c -lm -lieee
collect2: ld terminated with signal 11 [Segmentation fault], core dumped

This nukes binutils 2.8.1 reliably ...  The problem is extracted from the
INN build but also affects a few more packages.

  Ralf

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To:     Hiroshi Kawashima <kei@sm.sony.co.jp>
cc:     Ralf Baechle <ralf@oss.sgi.com>,
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Subject: Re: Simple Linux/MIPS 0.2b 
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On Wed, 19 Jul 2000, Hiroshi Kawashima wrote:

> Yes, I'm very interested in it.

 OK, they are at 'http://www.ds2.pg.gda.pl/~macro/'.

> (Although I'm mipsel (linux-vr) guy, but it will be very helpful.)

 Well, I'm working on a DECstation which is mipsel-linux, so results
should be comparable.  I suppose these fixes work for mips-linux equally
well. 

 I'll see if I can arrange space for RPMs, yet.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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Subject: Re: Simple Linux/MIPS 0.2b
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On Thu, 20 Jul 2000, Ralf Baechle wrote:

> Anyway, have you tried to rebuild an entire Linux distribution with your

 No I didn't and I don't expect anytime soon.  Basically due to the lack
of disk space and time to tweak broken RPMs.  I've effectively build 68 of
different binary RPMs so far (not counting different releases of the same
packages) and these include tools important to run a minimal system as
well as have a reasonable development environment.  These include SysVinit
2.78, bash 2.04, binutils 2.10, db 3.0.55, gcc 2.95.2, gdb 5.0, glibc
2.1.91, pam 0.72, rpm 3.0.4, and others.

> toolset, including kernel, static (Like rpm or ldconfig) and dynamic PIC
> code?  If that was successful I'd really like to recommend your toolset

 As far as I can see both statically (bash.static, rpm, ldconfig) and
dynamically linked code (almost everything else) works.  Dlopening seems
to work as NSS and PAM modules appear to work but it needs further
investigation.  Every recent failure I observed was a result of a bug in
glibc or the kernel. 

> as the new standard - especially binutils 2.8.1 are just too rotten.

 Agreed.

> Example:
> 
> [ralf@indy /tmp]$ echo 'main(){}' > c.c;gcc -o c c.c -lm -lieee
> collect2: ld terminated with signal 11 [Segmentation fault], core dumped

 This works for me with a cross-compiler from an i386 host.  I'll try it
natively at home tonight.  I don't expect a failure, though.  Gcc is
rock-solid for me for quite some time, and the last failure of binutils
I've seen was the problem of relocations in .data section in an executable
I've discussed with Ulf at the end of May.  Gcc 2.96 is just to unstable
to be used unless developing it and there is no point in using binutils
2.10.90 for most people.

> This nukes binutils 2.8.1 reliably ...  The problem is extracted from the
> INN build but also affects a few more packages.

 I will build packages progressively but bugfixes and improvements are
higher on my TODO list than a working distribution -- I can work with init
starting bash on the console. ;-)  I hope to have working libpthreads
tonight (fixes are in yesterday's changes and I have a patch to support
R3K) -- this is the last remaining obstacle that prevents me from being
able to build .mipsel.rpm packages natively (not all software cross-builds
well; glibc included).  I'll be able to test various software more
thoroughly then (though building glibc over NFS would certainly not be
running at a stunning speed, sigh...). 

 I will definitely work for getting some FTP space for RPMs.

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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On Thu, 20 Jul 2000, Ralf Baechle wrote:

> [ralf@indy /tmp]$ echo 'main(){}' > c.c;gcc -o c c.c -lm -lieee
> collect2: ld terminated with signal 11 [Segmentation fault], core dumped

 The above example compiles fine for me natively and the resulting binary
works (i.e. it doesn't crash; what else would anyone expect from it? ;-)
).  Also I built a CVS snapshot of glibc 2.1.91 taken Jul 20th, 2000 at
2:25 UTC and it solves the libpthreads showstopper as I expected. 

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +




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 	 - is it a serious problem?
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I found a couple of these annoying messages at the beginning of kernel
startup.  It seems that some subsystems are requesting regions
(request_region()) before kernel even initialize its memory.

It appears to me this reservation is just for mutual exclusive access to
some memory region.  Since I have a static system (no PnP and hot swap
etc), so I can safely ignore them. 

Does that make sense?

What is the right to avoid these warnings?

Jun

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In /dev I have graphics, opengl and gfx, but still:
No devices detected (I have SGI Indy IP22).
could anybody send me XF86Config file for X on mips-linux directly to my
private mail-box, out of this mailing-list.

Thanks
Jiri Kastner.
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From:   "A. Wrasman" <awrasman@enchanted.net>
Date:   Sun, 23 Jul 2000 14:56:14 -0500
To:     Ralf Baechle <ralf@uni-koblenz.de>
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Subject: Re: Okay, lost
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On Sun, Jul 23, 2000 at 03:03:24AM +0200, Ralf Baechle wrote:
> On Sat, Jul 22, 2000 at 12:35:49PM -0500, A. Wrasman wrote:
> 
> > Well removed the 2 extra cards from the box. Still no go.
> 
> Thanks.
> 
> I suspect that there is some magic configuration which crashes.  Since
> hardware doesn't make the difference it might also be the PROM version.
> Basically I believe that under certain circumstances the kernel overwrites
> PROM data structures or vice versa or there is (yet another ...) ARC
> firmware bug which results in a crash.

I've got version 5.3 of the prom for IP22. Of course SGI is doing some update of the support section of their site this weekend
so I can't even poke around to see what updates have come out, since I have't patched IRIX 6.2 in over 2 years on this box.

How can I go about troubleshooting the kernel at this point? The odd thing is a 2.2.14 (and an older 2.2.1) kernel all work fine.

Since most of the work is now being done on the 2.4 kernel it would be nice to get nearer to what the development is being done on.

> 
>   Ralf

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From:   Ralf Baechle <ralf@oss.sgi.com>
To:     Jun Sun <jsun@mvista.com>
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Subject: Re: kmem_alloc: NULL ptr (name=unknown) - is it a serious problem?
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On Fri, Jul 21, 2000 at 07:39:42PM -0700, Jun Sun wrote:

> I found a couple of these annoying messages at the beginning of kernel
> startup.  It seems that some subsystems are requesting regions
> (request_region()) before kernel even initialize its memory.
> 
> It appears to me this reservation is just for mutual exclusive access to
> some memory region.  Since I have a static system (no PnP and hot swap
> etc), so I can safely ignore them. 
> 
> Does that make sense?

Not really.  The kernel initializes all devices long after memory
managment, see init/main.c:start_kernel().  So the simple suggestion
would be to delay initialization.

  Ralf

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Date:   Mon, 24 Jul 2000 00:55:49 EDT
From:   John Clemens <clemej@alum.rpi.edu>
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Subject: Indigo2 bootinfo problems (2.2.14 OK, anything after=NOT)
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Hello..

I'm being bitten by the post-2.2.14-including-2.4.0-does-not-boot syndrome.

Everything I've triend, even the pre-compiled kernels from Simple Linux
don't work, except for th 2.2.14 kernels. (and the earlier 2.2 kernels I
compiled around christmastime last year, when I had time to work on this
before.)

It's in indigo2, R4400 - 200Mhz, XZ graphics (but tried with the cards
pulled to no avail).  Most kernels just print the numbers right after you
type boot and the nothing else.  But if you boot with 2.2.14, then it boots
just fine.
I'm enclosing a boot log of the 2.2.14 boot to show what prom and arcs
version I'm running.. maybe they're provide some clues?

john.c


>> boot vml-2214 boot=/bin/bash console=ttyS0 nfsroot=192.168.8.1:/sl
130768+22320+3184+341792+48560d+4604+6816 entry: 0x8ffa60d0
ARCH: SGI-IP22
PROMLIB: SGI ARCS firmware Version 1 Revision 10
PROMLIB: Total free ram 132923392 bytes (129808K,126MB)
CPU: MIPS-R4400 FPU<MIPS-R4400FPC> ICACHE DCACHE SCACHE
Loading R4000 MMU routines.
CPU revision is: 00000460
Primary instruction cache 16kb, linesize 16 bytes)
Primary data cache 16kb, linesize 16 bytes)
Secondary cache sized at 2048K linesize 128
Linux version 2.2.14 (wesolows@fallout) (gcc version egcs-2.91.66 19990314
(egc0
MC: SGI memory controller Revision 3
Vino: ID:00 Rev:00
0x00 0x00 0x088134c34 0x00
0x00 0x00 0x00 0x00
calculating r4koff... 000f43d0(1000400)
zs0: console input
Console: ttyS0 (Zilog8530)
Calibrating delay loop... 99.94 BogoMIPS
Memory: 125788k/261652k available (1140k kernel code, 2844k data)
Dentry hash table entries: 16384 (order 5, 128k)                           
   Buffer cache hash table entries: 131072 (order 7, 512k)
Page cache hash table entries: 32768 (order 5, 128k)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
TCP: Hash tables configured (ehash 131072 bhash 65536)
Starting kswapd v 1.5
initialize_kbd: Keyboard failed self test
Detected PS/2 Mouse Port.
SGI Zilog8530 serial driver version 1.00
Keyboard timeout[2]
Keyboard timeout[2]
tty00 at 0xbfbd9830 (irq = 37) is a Zilog8530
tty01 at 0xbfbd9838 (irq = 37) is a Zilog8530                              
   DS1286 Real Time Clock Driver v1.0
streamable misc devices registered (keyb:150, gfx:148)
Linux video capture interface: v1.00
loop: registered device at major 7
wd33c93-0: chip=WD33c93B/13 no_sync=0xff no_dma=0 debug_flags=0x00
           setup_args=,,,,,,,,,
           Version 1.25 - 09/Jul/1997, Compiled May 18 2000 at 16:33:06
wd33c93-1: chip=WD33c93B/13 no_sync=0xff no_dma=0 debug_flags=0x00
           setup_args=,,,,,,,,,
           Version 1.25 - 09/Jul/1997, Compiled May 18 2000 at 16:33:06
scsi0 : SGI WD93
scsi1 : SGI WD93
scsi : 2 hosts.
 sending SDTR 0103013f0csync_xfer=2c  Vendor: SGI       Model: QUANTUM
XP32150 C
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
scsi : detected 1 SCSI disk total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4404489 [2150 MB] [2.2
GB]   sgiseeq.c: David S. Miller (dm@engr.sgi.com)
eth0: SGI Seeq8003 08:00:69:09:07:b3
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.8.1, my address is 192.168.8.5
Partition check:
 sda: sda1 sda2 sda3 sda4
Looking up port of RPC 100003/2 on 192.168.8.1
Looking up port of RPC 100005/1 on 192.168.8.1
VFS: Mounted root (NFS filesystem) readonly.
Freeing prom memory: 768k freed
Freeing unused kernel memory: 60k freed
Running /etc/rc. . .
Performing file system check                                               
   sgiseeq.c: David S. Miller (dm@engr.sgi.com)
eth0: SGI Seeq8003 08:00:69:09:07:b3
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.8.1, my address is 192.168.8.5
Partition check:
 sda: sda1 sda2 sda3 sda4
Looking up port of RPC 100003/2 on 192.168.8.1
Looking up port of RPC 100005/1 on 192.168.8.1
VFS: Mounted root (NFS filesystem) readonly.
Freeing prom memory: 768k freed
Freeing unused kernel memory: 60k freed
Running /etc/rc. . .
Performing file system check                                               
    
 

-- 
- --
/* John Clemens     http://www.rpi.edu/~clemej _/ "I Hate Quotes"       */
/* ICQ: 7175925     clemej@rpi.edu           _/    -- Samuel L. Clemens */ 
/* RPI Comp. Eng. 2000, Linux Parallel/Network/OS/Driver Specialist     */


From owner-linux-mips@oss.sgi.com Mon Jul 24 05:35:39 2000
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Date:   Mon, 24 Jul 2000 14:34:08 +0200 (MET DST)
From:   "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
To:     linux-mips@fnet.fr, linux-mips@oss.sgi.com
Subject: Gdb 5.0 patches for MIPS/Linux -- next iteration
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Hi,

 After a bit of work a next release of gdb patches is ready.  It provides
a few bugfixes as well as handling of branches on coprocessor 1
conditions.  It's available at 'http://www.ds2.pg.gda.pl/~macro/gdb-5.0/'. 

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


From owner-linux-mips@oss.sgi.com Mon Jul 24 06:30:49 2000
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Date:   Mon, 24 Jul 2000 15:28:25 +0200
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From:   Seth Mos <knuffie@xs4all.nl>
Subject: Linux on an O2
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Hi,

I found some other discussions on the 1998 mailling list archives about the 
possibility of Linux on O2. My question is would it be easier to achieve 
these days with the experience of using Indy's.

Could someone give advise in what would be nicer to work on.
Is an O2 a "no go" for porting linux to it or is there interrest.

I am in the process of buying an O2 although 2nd hand Indy's and Indigo2 
are also come to mind. I am also willing to give shell access to people 
wanting to develop on a O2 if I do buy one.

Bye Seth


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Date:   Tue, 25 Jul 2000 00:01:08 +0200
From:   Diablero <poinde_t@epita.fr>
To:     linux-mips@oss.sgi.com
Subject: I can't cross compile kernel
Message-ID: <20000725000108.A12611@purple42.epx.epita.fr>
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I have recompiled binutils and gcc lik it's explained in
http://foobazco.org/~wesolows/mips-cross.html. 

I have tried to cross-compile kernel but I always had the same errors.
(last kernel from cvs - oss.sgi.com)
make menuconfig ARCH=mips
make dep MAKE="make -j3" CROSS_COMPILE=mips-linux-
make boot MAKE="make -j3" CROSS_COMPILE=mips-linux-

mips-linux-gcc -D__KERNEL__ -I/goinfre/mips/kernel/linux-cvs/include -Wall
-Wstrict-prototypes -O2 -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic
-mcpu=r4600 -mips2 -Wa,--trap -pipe -fno-strict-aliasing  -c -o init/main.o
init/main.c
in file included from
/goinfre/mips/kernel/linux-cvs/include/linux/coda_fs_i.h:14,
                 from
		 /goinfre/mips/kernel/linux-cvs/include/linux/fs.h:281,
[...]
                 from
		 /goinfre/mips/kernel/linux-cvs/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/goinfre/mips/kernel/linux-cvs/include/linux/coda.h:259: parse error before
`u_quad_t'
/goinfre/mips/kernel/linux-cvs/include/linux/coda.h:259: warning: no
semicolon at end of struct or union
[...]
/goinfre/mips/kernel/linux-cvs/include/linux/udf_fs_sb.h:21: warning:
ignoring pragma: 1
/goinfre/mips/kernel/linux-cvs/include/linux/udf_fs_sb.h:76: warning:
ignoring pragma: ;
{standard input}: Assembler messages:
{standard input}:50: Warning: No .cprestore pseudo-op used in PIC code
{standard input}:98: Warning: No .cprestore pseudo-op used in PIC code
{standard input}:108: Warning: No .cprestore pseudo-op used in PIC code
{standard input}:167: Warning: Macro instruction expanded into multiple
instructions
{standard input}:167: Warning: No .cprestore pseudo-op used in PIC code
[...]


-- 
Thomas Poindessous
EpX asso GNU/Linux de l'Epita
epx@epita.fr && http://www.epita.fr/~epx

From owner-linux-mips@oss.sgi.com Mon Jul 24 15:48:41 2000
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Date:   Mon, 24 Jul 2000 15:47:24 -0700
From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     Diablero <poinde_t@epita.fr>
Cc:     linux-mips@oss.sgi.com
Subject: Re: I can't cross compile kernel
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On Tue, Jul 25, 2000 at 12:01:08AM +0200, Diablero wrote:

> I have tried to cross-compile kernel but I always had the same errors.
> (last kernel from cvs - oss.sgi.com)

A few questions: what compiler version? What binutils version? Could
you please send me your .config? This doesn't happen for me with gcc,
binutils, and linux current CVS. If you are compiling with current CVS
gcc, you will need some of my patches as well, though they don't
address this problem.

Also, I now recommend that people wanting to build a cross-compiler by
a recipe use my make-cross script instead of typing everything
manually. It's available on oss.sgi.com. It's hackerware, but so are
cross-compilers.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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From:   Diablero <poinde_t@epita.fr>
To:     linux-mips@oss.sgi.com
Subject: Re: I can't cross compile kernel
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--YiEDa0DAkWCtVeE4
Content-Type: text/plain; charset=us-ascii

On Mon, Jul 24, 2000 at 03:47:24PM -0700, Keith M Wesolowski wrote:
> On Tue, Jul 25, 2000 at 12:01:08AM +0200, Diablero wrote:
> 
> > I have tried to cross-compile kernel but I always had the same errors.
> > (last kernel from cvs - oss.sgi.com)
> 
> A few questions: what compiler version? What binutils version? Could
> you please send me your .config? This doesn't happen for me with gcc,
> binutils, and linux current CVS. If you are compiling with current CVS
> gcc, you will need some of my patches as well, though they don't
> address this problem.

I use binutils 2.10 and gcc 2.95.2
I attach my .config

> -- 
> Keith M Wesolowski			wesolows@chem.unr.edu
> University of Nevada			http://www.chem.unr.edu
> Chemistry Department Systems and Network Administrator
> 

-- 
Thomas Poindessous
EpX asso GNU/Linux de l'Epita
epx@epita.fr && http://www.epita.fr/~epx

--YiEDa0DAkWCtVeE4
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=".config"

#
# Automatically generated by make menuconfig: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Machine selection
#
# CONFIG_ACER_PICA_61 is not set
# CONFIG_ALGOR_P4032 is not set
# CONFIG_BAGET_MIPS is not set
# CONFIG_COBALT_MICRO_SERVER is not set
# CONFIG_DECSTATION is not set
# CONFIG_DDB5074 is not set
# CONFIG_ORION is not set
CONFIG_MIPS_MAGNUM_4000=y
# CONFIG_OLIVETTI_M700 is not set
# CONFIG_SGI_IP22 is not set
# CONFIG_SNI_RM200_PCI is not set
# CONFIG_SBUS is not set
CONFIG_ARC32=y
CONFIG_ISA=y
CONFIG_FB=y
CONFIG_FB_G364=y
CONFIG_MIPS_JAZZ=y
CONFIG_PC_KEYB=y
# CONFIG_PCI is not set

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y

#
# CPU selection
#
# CONFIG_CPU_R3000 is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_R4300 is not set
CONFIG_CPU_R4X00=y
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R8000 is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_ADVANCED is not set
CONFIG_CPU_HAS_LLSC=y
# CONFIG_CPU_HAS_WB is not set

#
# General setup
#
# CONFIG_CPU_LITTLE_ENDIAN is not set
CONFIG_KCORE_ELF=y
CONFIG_ELF_KERNEL=y
CONFIG_BINFMT_IRIX=y
CONFIG_FORWARD_KEYBOARD=y
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play configuration
#
# CONFIG_PNP is not set
# CONFIG_ISAPNP is not set
# CONFIG_PCMCIA is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_LVM is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set
# CONFIG_PHONE_IXJ is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
# CONFIG_CHR_DEV_SG is not set
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_JAZZ_ESP is not set

#
# I2O device support
#
# CONFIG_I2O is not set
# CONFIG_I2O_BLOCK is not set
# CONFIG_I2O_LAN is not set
# CONFIG_I2O_SCSI is not set
# CONFIG_I2O_PROC is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MIPS_JAZZ_SONIC=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_YELLOWFIN is not set
# CONFIG_ACENIC is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
# CONFIG_SERIAL is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_UNIX98_PTYS is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_DRM is not set
# CONFIG_AGP is not set

#
# File systems
#
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
CONFIG_SYSV_FS=y
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_MOUNT_SUBDIR is not set
# CONFIG_NCPFS_NDS_DOMAINS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_NLS is not set

#
# Console drivers
#
# CONFIG_VGA_CONSOLE is not set
CONFIG_FB=y

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set

#
# Kernel hacking
#
CONFIG_CROSSCOMPILE=y
# CONFIG_MIPS_FPE_MODULE is not set
# CONFIG_MAGIC_SYSRQ is not set

--YiEDa0DAkWCtVeE4--

From owner-linux-mips@oss.sgi.com Mon Jul 24 17:19:52 2000
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Message-ID: <397CE15C.6F052671@home.com>
Date:   Mon, 24 Jul 2000 19:37:48 -0500
From:   Kelly Kitson <kwkitson@home.com>
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Subject: Personal IRIS 4D series, again, still...
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I have had a 4D/35 for a year now, and still nothing about getting Linux
running on it. If I could get Iris 6.X, I would. As most of us know,
this puppy will only run 5.3 or less.

How much work has been done on the Linux kernel? I can help if some
hardware docs were more readily available...

-- 
E Pluribus Linux
pgp key available ...
http://www.members.home.com/kwkitson

From owner-linux-mips@oss.sgi.com Tue Jul 25 06:11:57 2000
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Has anyone managed to get Linux (any distribution) onto the Visual
Workstation? Personally, had a no. of problems
with the Visual Workstation and my last gasp effort to use the machine
(apart from as a dust magnet) is to run Linux on
them .... any info. pls. let me know. (linux.sgi.com ... used to have a
couple of pages as I recall, but dont think they are there now....)


rgds & thnks,


Michael L




From owner-linux-mips@oss.sgi.com Tue Jul 25 08:17:28 2000
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Has anybody setup IP masquerading with the 2.4 kernel (using netfilter
and iptables) on a little endian R4Kc MIPS 32 architecture? I'm looking
for either compiled iptables binaries (or MIPS patched source) and
information about which kernel options need to be enabled.
I could also possibly use ipchains with the 2.4 kernel if anybody has
information/success with that.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Brady Brown (bbrown@ti.com)       Work:(801)619-6103
Texas Instruments: Broadband Access Group
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



From owner-linux-mips@oss.sgi.com Tue Jul 25 09:12:18 2000
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From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     Diablero <poinde_t@epita.fr>
Cc:     linux-mips@oss.sgi.com
Subject: Re: I can't cross compile kernel
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On Tue, Jul 25, 2000 at 01:16:04AM +0200, Diablero wrote:

> I use binutils 2.10 and gcc 2.95.2
> I attach my .config

With a current toolchain, I can't duplicate your problem. There is a
bug in the sonic.c driver that causes compilation to abort (it's not
been softnetted) but I don't see the error you do. At a glance, it
looks like the problem is with the definition of u_quad_t. You might
try running the file in question through the preprocessor to see
what's going on.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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From:   Andy Isaacson <adi@mr-happy.com>
To:     michael.j.lewis@db.com
Cc:     linux@cthulhu.engr.sgi.com
Subject: Re: SGI-Linux VisualWorkstations
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On Tue, Jul 25, 2000 at 02:08:52PM +0100, michael.j.lewis@db.com wrote:
> Has anyone managed to get Linux (any distribution) onto the Visual
> Workstation? Personally, had a no. of problems
> with the Visual Workstation and my last gasp effort to use the machine
> (apart from as a dust magnet) is to run Linux on
> them .... any info. pls. let me know. (linux.sgi.com ... used to have a
> couple of pages as I recall, but dont think they are there now....)

I have the instructions I used up at
http://www.lcse.umn.edu/~adi/visws/
The detailed (but only correct for the LCSE setup) instructions are at
http://www.lcse.umn.edu/~adi/visws/lcse-setup.html

It's not terribly useful, though... we had a lot of problems with our
setup and the systems are back to running NT full time.

Off the top of my head
 - XFree86 4.0 fbdev driver had color problems
 - only the first bank of memory was usable (256 of our 1024 MB)
 - accessing the floppy or CD-ROM was likely to hang the machine
 - 2.2.10 was the only kernel I could get running

-andy
-- 
Andy Isaacson <adi@mr-happy.com> http://web.mr-happy.com/~adi/

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From:   Ehab Fares <ehab@aia.rwth-aachen.de>
To:     michael.j.lewis@db.com
Subject: Re: SGI-Linux VisualWorkstations
Date:   Tue, 25 Jul 2000 20:31:56 +0200
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On Tue, 25 Jul 2000, you wrote:
> Has anyone managed to get Linux (any distribution) onto the Visual
> Workstation? Personally, had a no. of problems
> with the Visual Workstation and my last gasp effort to use the machine
> (apart from as a dust magnet) is to run Linux on
> them .... any info. pls. let me know. (linux.sgi.com ... used to have a
> couple of pages as I recall, but dont think they are there now....)
> 
> 
> rgds & thnks,
> 
> 
> Michael L
-- 
We've been runnung Linux on a Visual Workstation 540 for some time now.. We
used a SuSE 6.3 Distribution and there was a lot to do to get the mahine
booting for first installation. The Information we used was on the
www.linux.sgi.com... For some reasons (perhaps the new Visual workastation
from SGI) only the mips architecture is now present there! Unfortunatley I
don't have these Information anymore...  

I also have only been able to boot the 2.2.10 Kernel. The system is integrated
into a Linux cluster. We are not using the CD-ROM or the floppy much, so I
don't know of any  problems there. The machine hangs every now and then
(sometimes once per 2 weeks and sometimes one per day). The hanging seem to
stop if the X server is not activated. Our biggest problem is the Memory, we
are only using 960MB of the 2GB. I believe this is only a problem of the arc
loader. It is even mentioned in the sources of that loader. I haven't figured
out a way to get around that yet...  

I personally find it discouraging that there is no further development for
these machines. They would make a great linux visualization machines (as SGI
apparently noticed already and giving a linux option for the newer Visual
Workstation)... What is needed is a better support for the hardware including
the graphics... 

regards,
Ehab.



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The howto page on the sgi site has moved to
http://oss.sgi.com/www.linux.sgi.com/intel/visws
I use a debian distribution with kernel 2.2.10 on a 320 with 256Mb ram and
the flat panel display.
Xfree 3.3.6 seems to work best and will provide 8 or 16 bit depth. The
main problem I have found (at least under kde and xfree 3.x and 4.x) is
that the mouse focus will not always pass to the window under the cursor,
and some processes have to be killed to release the focus.
The other problem is that every few days the ethernet controller stops
transmitting and must be restarted.

michael.j.lewis@db.com wrote:

> Has anyone managed to get Linux (any distribution) onto the Visual
> Workstation? Personally, had a no. of problems
> with the Visual Workstation and my last gasp effort to use the machine
> (apart from as a dust magnet) is to run Linux on
> them .... any info. pls. let me know. (linux.sgi.com ... used to have a
> couple of pages as I recall, but dont think they are there now....)
>
> rgds & thnks,
>
> Michael L

--
Mark Pearson BSc (Computing) -- Technical and Computer Support
Department of Nuclear Medicine, Concord Hospital
Hospital Road, Concord, NSW  2137, Australia
PH: 61-2-9767 7450 or 61-2-9767 6339  FAX: 61-2-9767 7451




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From owner-linux-mips@oss.sgi.com Wed Jul 26 08:54:15 2000
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From:   Chris Ruvolo <csr6702@grace.rit.edu>
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On Wed, 19 Jul 2000, J. Scott Kasten wrote:

> Would like to
>try the debian distro, but cannot find a big endian root image to install
>with,

I've put one together.  Its rather limited and a bit outdated now (doesn't
have perl 5.005 nor debconf), but you might want to take a look at it.  
It has a working dpkg & apt.  I plan on updating this within the next week
or two.

http://ftp.rfc822.org/pub/local/debian-mips/experimental/debian-mips-base-test_0.3.tar

-Chris




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Thanks.  I'll give it a shot in the next few days.

On Wed, 26 Jul 2000, Chris Ruvolo wrote:

> On Wed, 19 Jul 2000, J. Scott Kasten wrote:
> 
> > Would like to
> >try the debian distro, but cannot find a big endian root image to install
> >with,
> 
> I've put one together.  Its rather limited and a bit outdated now (doesn't
> have perl 5.005 nor debconf), but you might want to take a look at it.  
> It has a working dpkg & apt.  I plan on updating this within the next week
> or two.
> 
> http://ftp.rfc822.org/pub/local/debian-mips/experimental/debian-mips-base-test_0.3.tar
> 
> -Chris
> 
> 
> 
> 


From owner-linux-mips@oss.sgi.com Wed Jul 26 21:55:17 2000
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Date:   Wed, 26 Jul 2000 21:54:16 -0700
From:   Keith M Wesolowski <wesolows@foobazco.org>
To:     linux-mips@oss.sgi.com
Subject: sgi prom console
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Hi,

This patch gets the sgi prom console outputting again, and eliminates
the "cannot open initial console" error. Unfortunately, all output
from userland goes to the serial port, not the the prom console.
Looking at the code, this isn't at all surprising; the prom console
pretends to be 4,64, ttyS0. It's quite beyond me how the prom console
could ever have worked for userland.

Index: drivers/char/mem.c
===================================================================
RCS file: /cvs/linux/drivers/char/mem.c,v
retrieving revision 1.35
diff -u -r1.35 mem.c
--- drivers/char/mem.c	2000/06/25 01:20:03	1.35
+++ drivers/char/mem.c	2000/07/27 04:48:33
@@ -49,6 +49,9 @@
 #ifdef CONFIG_PROM_CONSOLE
 extern void prom_con_init(void);
 #endif
+#ifdef CONFIG_SGI_PROM_CONSOLE
+extern void sgi_prom_console_init(void);
+#endif
 #ifdef CONFIG_MDA_CONSOLE
 extern void mda_console_init(void);
 #endif
@@ -632,6 +635,9 @@
 #endif
 #if defined (CONFIG_PROM_CONSOLE)
 	prom_con_init();
+#endif
+#if defined (CONFIG_SGI_PROM_CONSOLE)
+	sgi_prom_console_init();
 #endif
 #if defined (CONFIG_MDA_CONSOLE)
 	mda_console_init();


-- 
Keith M Wesolowski <wesolows@foobazco.org> http://foobazco.org/~wesolows/
(( Project Foobazco Coordinator and Network Administrator )) aiieeeeeeee!
"The list of people so amazingly stupid they can't even tie their shoes?"
"Yeah, you know, /etc/passwd."

From owner-linux-mips@oss.sgi.com Thu Jul 27 06:18:39 2000
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Subject: Re: IGS5050 Driver
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On Wed, 26 Jul 2000, [ks_c_5601-1987] ╠Хгя╪╨ wrote:
> I want to know that there is a IGS5050 Grpahic chip driver for linux-mips.
> If yes, where is the driver files?

linux/drivers/video/cyber2000fb.c is a driver for the IGS CyberPro 2000, 2010
and 5000 in the NetWinder, which has an ARM CPU. If the 5050 is sufficient
compatible with the 5000 it should not be too difficult to get cyber2000fb to
work on the 5050 on the MIPS.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds


From owner-linux-mips@oss.sgi.com Thu Jul 27 16:08:20 2000
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Has anybody been successful in trying to get strace running on
Linux/MIPS?  I managed to get 4.2, with a little from CVS tree, compiled
and run.  However, it does not quite right.  It only prints the first
system. See below.  Verified that this is the same behavior on both
2.3.99-pre3 and 2.4.0-test2.

sh-2.03# strace ls
execve("/bin/ls", ["ls"], [/* 14 vars */]) = 0
bin  boot  dev  etc  lib  mnt  opt  proc  sbin  share  tmp  var

Any idea?

Jun

From owner-linux-mips@oss.sgi.com Thu Jul 27 16:13:30 2000
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From:   Keith M Wesolowski <wesolows@chem.unr.edu>
To:     Jun Sun <jsun@mvista.com>
Cc:     linux-mips@fnet.fr, linux@cthulhu.engr.sgi.com
Subject: Re: strace on Linux/MIPS?
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On Thu, Jul 27, 2000 at 04:05:08PM -0700, Jun Sun wrote:

> Has anybody been successful in trying to get strace running on
> Linux/MIPS?  I managed to get 4.2, with a little from CVS tree, compiled
> and run.  However, it does not quite right.  It only prints the first
> system. See below.  Verified that this is the same behavior on both
> 2.3.99-pre3 and 2.4.0-test2.

Your kernel is too old. Ralf fixed some things in ptrace a few days
ago. Also, I would be interested in hearing if you can get 4.2 to
work. I found that, even after adjusting several places for
__NR_Linux, it segfaulted. I do have 3.1 from oss.sgi.com CVS (with a
couple minor glibc 2.2 patches) working properly with a current
kernel.

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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Keith M Wesolowski wrote:
> 
> On Thu, Jul 27, 2000 at 04:05:08PM -0700, Jun Sun wrote:
> 
> > Has anybody been successful in trying to get strace running on
> > Linux/MIPS?  I managed to get 4.2, with a little from CVS tree, compiled
> > and run.  However, it does not quite right.  It only prints the first
> > system. See below.  Verified that this is the same behavior on both
> > 2.3.99-pre3 and 2.4.0-test2.
> 
> Your kernel is too old.

Wow, a couple days is "too old".  I guest that is Linux speed.

> Ralf fixed some things in ptrace a few days
> ago. 

Great!  Can you pinpoint the related files?  I took a snapshot of CVS on
6/27 and hacked heavily to get it work on my NEC board.  It would be
very difficult for me to move to the new kernel.  It would be better if
I can just reverse-merge with the related changes.

Jun

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Subject: Re: sgi prom console
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On Wed, Jul 26, 2000 at 09:54:16PM -0700, Keith M Wesolowski wrote:

> This patch gets the sgi prom console outputting again, and eliminates
> the "cannot open initial console" error. Unfortunately, all output
> from userland goes to the serial port, not the the prom console.
> Looking at the code, this isn't at all surprising; the prom console
> pretends to be 4,64, ttyS0. It's quite beyond me how the prom console
> could ever have worked for userland.

Ok, patch applied.

  Ralf

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To:     Jun Sun <jsun@mvista.com>
Cc:     Keith M Wesolowski <wesolows@chem.unr.edu>, linux-mips@fnet.fr,
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Subject: Re: strace on Linux/MIPS?
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On Thu, Jul 27, 2000 at 04:46:56PM -0700, Jun Sun wrote:

> > > Has anybody been successful in trying to get strace running on
> > > Linux/MIPS?  I managed to get 4.2, with a little from CVS tree, compiled
> > > and run.  However, it does not quite right.  It only prints the first
> > > system. See below.  Verified that this is the same behavior on both
> > > 2.3.99-pre3 and 2.4.0-test2.
> > 
> > Your kernel is too old.
> 
> Wow, a couple days is "too old".  I guest that is Linux speed.

Software is like fish, it starts to smell soon :-)

> > Ralf fixed some things in ptrace a few days
> > ago. 
> 
> Great!  Can you pinpoint the related files?  I took a snapshot of CVS on
> 6/27 and hacked heavily to get it work on my NEC board.  It would be
> very difficult for me to move to the new kernel.  It would be better if
> I can just reverse-merge with the related changes.

arch/mips/kernel/scall_o32.S
arch/mips/tools/offset.c
arch/mips64/kernel/scall_64.S
arch/mips64/kernel/scall_o32.S
arch/mips64/tools/offset.c

  Ralf

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Ralf,

Is there is easy way to turn off caching entirely?  I understand I need
to set k0 bits in config register.  What about those C bits in TLB
entries?  My CPU only has primary cache.

I am running into some weired crashing problems, which makes me suspect
about the cache code that I modified ...

Thanks.  (BTW, thanks for the info on strace files.) 

Jun

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On Thu, Jul 27, 2000 at 05:52:42PM -0700, Jun Sun wrote:

> Is there is easy way to turn off caching entirely?  I understand I need
> to set k0 bits in config register.  What about those C bits in TLB
> entries?  My CPU only has primary cache.

The C bits are per page, the k0 bits are for KSEG0.  If you want to
turn of caching, then you need to:

  - change the k0 bits to uncached on startup, then flush the caches or a
    writeback might corrupt your data.
  - change the caching mode of the usermode pages by modifying the
    definitions for PAGE_NONE etc. in pgtable.h.
  - comment out the cache Create_Dirty_Exclusive instructions in r4xx0.c,
    using them on uncached pages would corrupt data.

Which will make the kernel crawl awfully ...

  Ralf

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Subject: Re: strace on Linux/MIPS?
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Ralf Baechle wrote:
> 
> > > Ralf fixed some things in ptrace a few days
> > > ago.
> >
> > Great!  Can you pinpoint the related files?  I took a snapshot of CVS on
> > 6/27 and hacked heavily to get it work on my NEC board.  It would be
> > very difficult for me to move to the new kernel.  It would be better if
> > I can just reverse-merge with the related changes.
> 
> arch/mips/kernel/scall_o32.S
> arch/mips/tools/offset.c
> arch/mips64/kernel/scall_64.S
> arch/mips64/kernel/scall_o32.S
> arch/mips64/tools/offset.c
> 
>   Ralf

I just updated offset.c and scall_o32.S.  After a trial change ("nice"
-> "priority") in offset.c, strace seems to work fine now.

However, I did notice an error message for mmap(...).

mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 717291520

Keith, if you want the patch for strace 4.2, I can send it to you.  

Jun

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On Thu, Jul 27, 2000 at 07:12:44PM -0700, Jun Sun wrote:

> I just updated offset.c and scall_o32.S.  After a trial change ("nice"
> -> "priority") in offset.c, strace seems to work fine now.
> 
> However, I did notice an error message for mmap(...).
> 
> mmap(ptrace: umoven: Input/output error
> ptrace: umoven: Input/output error
> )                                  = 717291520

Looks like strace is still tryping to copy mmap_arg_struct like on Intel
but on MIPS we don't use that?

> Keith, if you want the patch for strace 4.2, I can send it to you.  

  Ralf

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On Thu, 27 Jul 2000, Jun Sun wrote:

> Great!  Can you pinpoint the related files?  I took a snapshot of CVS on
> 6/27 and hacked heavily to get it work on my NEC board.  It would be
> very difficult for me to move to the new kernel.  It would be better if
> I can just reverse-merge with the related changes.

 Well, you can always take a unified diff of your own changes and try to
apply it to a new snapshot.  Depending on the amount of changes you might
need to apply certain hunks manually but the overall process is usually
quite easy. 

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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From:   Wichert Akkerman <wichert@cistron.nl>
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Previously Ralf Baechle wrote:
> Looks like strace is still tryping to copy mmap_arg_struct like on Intel
> but on MIPS we don't use that?

Could be, I think MIPS and i386 use the same codepath there. Patches
are appreciated so I can include them in strace 4.3 (eta 3 weeks from
now)

Wichert.

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--------------07B833AB41C1174A1529D62C
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Ralf Baechle wrote:
> 
> On Thu, Jul 27, 2000 at 05:52:42PM -0700, Jun Sun wrote:
> 
> > Is there is easy way to turn off caching entirely?  I understand I need
> > to set k0 bits in config register.  What about those C bits in TLB
> > entries?  My CPU only has primary cache.
> 
> The C bits are per page, the k0 bits are for KSEG0.  If you want to
> turn of caching, then you need to:
> 
>   - change the k0 bits to uncached on startup, then flush the caches or a
>     writeback might corrupt your data.
>   - change the caching mode of the usermode pages by modifying the
>     definitions for PAGE_NONE etc. in pgtable.h.
>   - comment out the cache Create_Dirty_Exclusive instructions in r4xx0.c,
>     using them on uncached pages would corrupt data.
> 
> Which will make the kernel crawl awfully ...
> 
>   Ralf

I have successfully turned of cache.  And of course my cache code is not
the source for the problem :-) - which means I need to probe further.
:-(

For those who are interested, here is the patch that gives how I did
it.  Specifically, ld_mmu_r4k() has a line of code to turn on cache,
which needs to be commented out.  I explicitly turned off cache in
ld_mmu_r4k(), right after a flush_all_cache() call, instead of at the
beginnig of kernel_entry.

Jun
--------------07B833AB41C1174A1529D62C
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 filename="linux-mips-v2.4.0-test2-r4k-cache-off.patch"

--- include/asm/pgtable.h.orig	Fri Jul 28 15:22:09 2000
+++ include/asm/pgtable.h	Fri Jul 28 15:22:54 2000
@@ -132,7 +132,7 @@
 #define _CACHE_CACHABLE_NO_WA       (0<<9)  /* R4600 only              */
 #define _CACHE_CACHABLE_WA          (1<<9)  /* R4600 only              */
 #define _CACHE_UNCACHED             (2<<9)  /* R4[0246]00              */
-#define _CACHE_CACHABLE_NONCOHERENT (3<<9)  /* R4[0246]00              */
+#define _CACHE_CACHABLE_NONCOHERENT (2<<9)  /* R4[0246]00              */
 #define _CACHE_CACHABLE_CE          (4<<9)  /* R4[04]00 only           */
 #define _CACHE_CACHABLE_COW         (5<<9)  /* R4[04]00 only           */
 #define _CACHE_CACHABLE_CUW         (6<<9)  /* R4[04]00 only           */
--- arch/mips/mm/r4xx0.c.cache-off	Fri Jul 28 14:49:23 2000
+++ arch/mips/mm/r4xx0.c	Fri Jul 28 19:38:17 2000
@@ -105,7 +105,7 @@
 		:"=r" (page)
 		:"0" (page),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D)
+		 "i" (Hit_Writeback_Inv_D)
 		:"$1","memory");
 }
 
@@ -134,7 +134,7 @@
 		:"=r" (page)
 		:"0" (page),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D)
+		 "i" (Hit_Writeback_Inv_D)
 		:"$1","memory");
 }
 
@@ -143,8 +143,8 @@
  * This flavour of r4k_clear_page is for the R4600 V1.x.  Cite from the
  * IDT R4600 V1.7 errata:
  *
- *  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
- *      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
+ *  18. The CACHE instructions Hit_Writeback_Inv_D, Hit_Writeback_D,
+ *      Hit_Invalidate_D and Hit_Writeback_Inv_D should only be
  *      executed if there is no other dcache activity. If the dcache is
  *      accessed for another instruction immeidately preceding when these
  *      cache instructions are executing, it is possible that the dcache 
@@ -157,14 +157,14 @@
  *                              nop
  *                              nop
  *                              nop
- *                              cache       Hit_Writeback_Invalidate_D
+ *                              cache       Hit_Writeback_Inv_D
  *
  *      This is allowed:        lw
  *                              nop
  *                              nop
  *                              nop
  *                              nop
- *                              cache       Hit_Writeback_Invalidate_D
+ *                              cache       Hit_Writeback_Inv_D
  */
 static void r4k_clear_page_r4600_v1(void * page)
 {
@@ -198,7 +198,7 @@
 		:"=r" (page)
 		:"0" (page),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D)
+		 "i" (Hit_Writeback_Inv_D)
 		:"$1","memory");
 }
 
@@ -234,7 +234,7 @@
 		:"=r" (page)
 		:"0" (page),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D)
+		 "i" (Hit_Writeback_Inv_D)
 		:"$1","memory");
 	restore_flags(flags);
 }
@@ -434,7 +434,7 @@
 		 "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)
 		:"0" (to), "1" (from),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D));
+		 "i" (Hit_Writeback_Inv_D));
 }
 
 static void r4k_copy_page_d32(void * to, void * from)
@@ -491,7 +491,7 @@
 		 "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)
 		:"0" (to), "1" (from),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D));
+		 "i" (Hit_Writeback_Inv_D));
 }
 
 /*
@@ -559,7 +559,7 @@
 		 "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)
 		:"0" (to), "1" (from),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D));
+		 "i" (Hit_Writeback_Inv_D));
 }
 
 static void r4k_copy_page_r4600_v2(void * to, void * from)
@@ -626,7 +626,7 @@
 		 "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)
 		:"0" (to), "1" (from),
 		 "I" (PAGE_SIZE),
-		 "i" (Create_Dirty_Excl_D));
+		 "i" (Hit_Writeback_Inv_D));
 	restore_flags(flags);
 }
 
@@ -2783,7 +2783,9 @@
 
 	printk("CPU revision is: %08x\n", read_32bit_cp0_register(CP0_PRID));
 
+	/* [jsun]
 	set_cp0_config(CONF_CM_CMASK, CONF_CM_CACHABLE_NONCOHERENT);
+	*/
 
 	probe_icache(config);
 	probe_dcache(config);
@@ -2803,6 +2805,7 @@
 	}
 
 	flush_cache_all();
+	set_cp0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
 	write_32bit_cp0_register(CP0_WIRED, 0);
 
 	/*

--------------07B833AB41C1174A1529D62C--


From owner-linux-mips@oss.sgi.com Sat Jul 29 09:07:33 2000
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Hi,

I started to play with gdb 5.0 + the MIPS patch at
http://www.ds2.pg.gda.pl/~macro/gdb-5.0/, but I am having a bus error if
I want to do 'next step'.  Setting breakpoints and continuing running
seem to be fine.

The gdb 4.17 rpm from oss.sgi.com does not have this problem.

Any idea?

Jun

---------------

sh-2.03# ./gdb hello
GNU gdb 5.0 (UI_OUT)
Copyright 2000 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "mipsel-hardhat-linux"...
(gdb) n
The program is not being run.
(gdb) b main
Breakpoint 1 at 0x400c24: file hello.c, line 5.
(gdb) r
Starting program: /tmp/hello 
[tcsetpgrp failed in terminal_inferior: Not a typewriter]
[tcsetpgrp failed in terminal_inferior: Not a typewriter]
[tcsetpgrp failed in terminal_inferior: Not a typewriter]

Breakpoint 1, main () at hello.c:5
5         printf("hello, world\n");
(gdb) n
[tcsetpgrp failed in terminal_inferior: Not a typewriter]
Bus error

-----------

P.S., Does anybody know how to fix "tcsetpgrp ..." error?

From owner-linux-mips@oss.sgi.com Sun Jul 30 16:18:39 2000
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Date:   Sun, 30 Jul 2000 19:16:38 +0000
From:   Famille Chauvat <famille.chauvat@free.fr>
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Hello,

I'm working with an Indy station and the corresponding kernel.
On the bootp() step, i got a message:
>>>>>>>

creating 100k of ramdisk space... done
mounting /tmp from ramdisk... failed

I can't recover from this.
<<<<<<<

Thanks a lot for your help.
Philippe

From owner-linux-mips@oss.sgi.com Sun Jul 30 17:03:40 2000
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On Sun, Jul 30, 2000 at 07:16:38PM +0000, Famille Chauvat wrote:

> I'm working with an Indy station and the corresponding kernel.

There are a lot of Indy kernels out there. Could you be more specific?

-- 
Keith M Wesolowski			wesolows@chem.unr.edu
University of Nevada			http://www.chem.unr.edu
Chemistry Department Systems and Network Administrator

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To:     Jun Sun <jsun@mvista.com>,
        Keith M Wesolowski <wesolows@chem.unr.edu>,
        linux-mips@oss.sgi.com, linux-mips@fnet.fr,
        linux-mips@vger.rutgers.edu
Subject: Re: strace on Linux/MIPS?
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On Fri, Jul 28, 2000 at 01:51:39PM +0200, Wichert Akkerman wrote:

> Previously Ralf Baechle wrote:
> > Looks like strace is still tryping to copy mmap_arg_struct like on Intel
> > but on MIPS we don't use that?
> 
> Could be, I think MIPS and i386 use the same codepath there. Patches
> are appreciated so I can include them in strace 4.3 (eta 3 weeks from
> now)

Well, they shouldn't use the same code ...

Bananaware patch below.

  Ralf

--- strace/linux/mips/syscallent.orig	Mon May  1 03:09:31 2000
+++ strace/linux/mips/syscallent.h	Fri Jul 28 19:50:13 2000
@@ -4088,7 +4088,7 @@
 	{ 1,	TF,	sys_swapon,		"swapon"	}, /* 4087 */
 	{ 3,	0,	sys_reboot,		"reboot"	}, /* 4088 */
 	{ 3,	0,	sys_readdir,		"readdir"	}, /* 4089 */
-	{ 6,	0,	sys_old_mmap,		"mmap"		}, /* 4090 */
+	{ 6,	0,	sys_mmap,		"mmap"		}, /* 4090 */
 	{ 2,	0,	sys_munmap,		"munmap"	}, /* 4091 */
 	{ 2,	TF,	sys_truncate,		"truncate"	}, /* 4092 */
 	{ 2,	0,	sys_ftruncate,		"ftruncate"	}, /* 4093 */

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Subject: Re: strace on Linux/MIPS?
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On Fri, Jul 28, 2000 at 01:51:39PM +0200, Wichert Akkerman wrote:

> Previously Ralf Baechle wrote:
> > Looks like strace is still tryping to copy mmap_arg_struct like on Intel
> > but on MIPS we don't use that?
> 
> Could be, I think MIPS and i386 use the same codepath there. Patches
> are appreciated so I can include them in strace 4.3 (eta 3 weeks from
> now)

Here's the second strace patch, please apply.

I noticed that process.c:change_syscall() can't work as is - the all kernels
would change the v0 register - and happily use the old value that is take
the wrong syscall.  A kernel buglet which also hits the usermode kernel
and which I'll fix asap.

  Ralf

--- strace/process.c.orig	Fri Jul 28 23:37:14 2000
+++ strace/process.c	Fri Jul 28 23:33:43 2000
@@ -502,6 +502,24 @@
 		if (errno)
 			return -1;
 	}
+#elif defined(MIPS)
+	{
+		errno = 0;
+		if (argnum < 4)
+			ptrace(PTRACE_POKEUSER, tcp->pid,
+			       (char*)(REG_A0 + argnum), tcp->u_arg[argnum]);
+		else {
+			unsigned long *sp;
+
+			if (upeek(tcp->pid, REG_SP, (long *) &sp) , 0)
+				return -1;
+
+			ptrace(PTRACE_POKEDATA, tcp->pid,
+			       (char*)(sp + argnum - 4), tcp->u_arg[argnum]);
+		}
+		if (errno)
+			return -1;
+	}
 #else
 # warning Sorry, setargs not implemented for this architecture.
 #endif

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Subject: Re: Bus error of gdb 5.0 with MIPS patch
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On Sat, Jul 29, 2000 at 09:05:57AM -0700, Jun Sun wrote:

> I started to play with gdb 5.0 + the MIPS patch at
> http://www.ds2.pg.gda.pl/~macro/gdb-5.0/, but I am having a bus error if
> I want to do 'next step'.  Setting breakpoints and continuing running
> seem to be fine.
> 
> The gdb 4.17 rpm from oss.sgi.com does not have this problem.
> 
> Any idea?

Possibly this was one of the cacheflush bugs I recently fixed.

> (gdb) n
> [tcsetpgrp failed in terminal_inferior: Not a typewriter]
> Bus error
> 
> -----------
> 
> P.S., Does anybody know how to fix "tcsetpgrp ..." error?

No idea, never seen / heared about this problem.

  Ralf

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     Здравствуйте, 
Мы подумали, что информация о нашей студии "SB
WebStudio" http://www.sb-studio.com будет для Вас
полезной и интересной. Если нет - тогда просто не читайте
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From owner-linux-mips@oss.sgi.com Mon Jul 31 02:56:54 2000
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I've cleaned some of the r4xx0.c cache functions yesterday.  Aside of shaving
off almost 50% of lat_mmap benchmark results we now also properly assymetric
cache line sizes as seen on the R4300 or used by certain configurations of
the M700 and Mips Magnum.

One of the next things I'll kill is support for split data and instruction
second level caches on R4000 and R4400; I haven't ever heared of such a
configuration actually being used in practice and anyway, it's a runtime
configurable feature so we could get rid of it if we ever run into it.

  Ralf

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Hello,

I have tried to compile binutils-2.10 with the patches from
http://www.ds2.pg.gda.pl/~macro/ but it fails because
BFD_RELOC_MIPS_HIGHER and BFD_RELOC_MIPS_HIGHEST are not
defined.  I believe that they should be defined in bfd-in2.h
but they are not there.  At the top of the file it says that
it is a generated file so how do I generate it?  I am also
wondering if changes to this file are missing from the patch
file.

Dan Aizenstros
Software Engineer
V3 Semiconductor Corp.

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From:   "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Reply-To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
To:     Jun Sun <jsun@mvista.com>
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Subject: Re: Bus error of gdb 5.0 with MIPS patch
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On Sat, 29 Jul 2000, Jun Sun wrote:

> (gdb) n
> [tcsetpgrp failed in terminal_inferior: Not a typewriter]
> Bus error
> 
> -----------
> 
> P.S., Does anybody know how to fix "tcsetpgrp ..." error?

 Hmm, I believe it indicates a problem with the shell.  I used to observe
it when my glibc disagreed with my kernel about struct stat64.  Try to
disable large file support for the shell until struct stat64 gets fixed. 

 About the bus error -- try to compile gdb with debugging support and make
it dump core on the bus error (you might need to tweak ulimit).  Then try
to locate the crash address with gdb (`info stack' might be particularly
useful).  It's most likely gdb cannot figure an address of the next
instruction properly.

 What version of libc?

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


From owner-linux-mips@oss.sgi.com Mon Jul 31 09:32:36 2000
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On Mon, 31 Jul 2000, Dan Aizenstros wrote:

> it is a generated file so how do I generate it?  I am also

 make -C bfd headers

> wondering if changes to this file are missing from the patch
> file.

 It's intentional.  Why would generated files be included in a patch?  It
only makes life more difficult when applying to modified sources.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


From owner-linux-mips@oss.sgi.com Mon Jul 31 09:39:06 2000
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To:     Dan Aizenstros <dan@vcubed.com>
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Subject: Re: Binutils-2.10
References: <39859107.195824A0@vcubed.com>
From:   Ulf Carlsson <ulfc@calypso.engr.sgi.com>
Date:   31 Jul 2000 09:34:44 -0700
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Hi Dan,

binutils-2.10 is known to work [or at least compile], but the patches
you use are broken in some way.  You could try to generate new files
as you suggested.  To generate new files you have to give the
--enable-maintainer-mode option to configure, and you need special
versions of some build tools.  The files will be generated when you
run make.

Here is the README-maintainer-mode that pretty much explains it:

                Notes on enabling maintainer mode

Note that if you configure with --enable-maintainer-mode, you will
need special versions of automake, autoconf, libtool and gettext. You
will find the sources for these in ftp://sourceware.cygnus.com/pub/binutils.

Ulf

> Hello,
> 
> I have tried to compile binutils-2.10 with the patches from
> http://www.ds2.pg.gda.pl/~macro/ but it fails because
> BFD_RELOC_MIPS_HIGHER and BFD_RELOC_MIPS_HIGHEST are not
> defined.  I believe that they should be defined in bfd-in2.h
> but they are not there.  At the top of the file it says that
> it is a generated file so how do I generate it?  I am also
> wondering if changes to this file are missing from the patch
> file.
> 
> Dan Aizenstros
> Software Engineer
> V3 Semiconductor Corp.

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"Maciej W. Rozycki" wrote:
>  About the bus error -- try to compile gdb with debugging support and make
> it dump core on the bus error (you might need to tweak ulimit).  Then try
> to locate the crash address with gdb (`info stack' might be particularly
> useful).  It's most likely gdb cannot figure an address of the next
> instruction properly.
> 
>  What version of libc?
>

It is glibc 2.0.7.  Pretty old, but I don't think there is a newer one
working stably with MIPS.

Jun

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On Mon, 31 Jul 2000, Jun Sun wrote:

> >  What version of libc?
> 
> It is glibc 2.0.7.  Pretty old, but I don't think there is a newer one
> working stably with MIPS.

 Well, I can't test that, I am afraid.  I am only using glibc 2.2 (which
is 2.1.91 at the moment).  It works quite well, but I wouldn't name it
stable yet, I admit.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


From owner-linux-mips@oss.sgi.com Mon Jul 31 15:03:31 2000
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Thanks for the help.  I was able to build binutils-2.10 after
generating the headers as you described.

The reason I expect the patch to change generated files is
because the normal make does not generate them and the files
are included in the binutils-2.10.tar.bz2 file.  They are also
in CVS.  Why are generated files in CVS or the binary distribution
if you have to generate them?

I thought all I would have to do is a ./configure; make; make install
after I applied the patches.  Maybe you could add the need to generate
files on your binutils-2.10 web page.

Dan Aizenstros
Software Engineer
V3 Semiconductor Corp.

"Maciej W. Rozycki" wrote:
> 
> On Mon, 31 Jul 2000, Dan Aizenstros wrote:
> 
> > it is a generated file so how do I generate it?  I am also
> 
>  make -C bfd headers
> 
> > wondering if changes to this file are missing from the patch
> > file.
> 
>  It's intentional.  Why would generated files be included in a patch?  It
> only makes life more difficult when applying to modified sources.
> 
> --
> +  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
> +--------------------------------------------------------------+
> +        e-mail: macro@ds2.pg.gda.pl, PGP key available        +