OOPS during NFS copy to/from 2.4.0-test5 machines.

From: Chris Meadors (clubneon@hereintown.net)
Date: Fri Jul 28 2000 - 14:33:47 EST


I'm still playing with my new server. I'm was trying to copy basicly everything
from my workstation over to the server by way of NFS when the machine I was
copying to oopsed. This is the server I described in a earlier post (2
motherboards both talking to 1 RAID controller). Save this time I was only
using one board, the other one was sitting idle (but still connected to the RAID
module).

I had to copy this oops by hand and decode it on a different machine because I
don't even have the new machine set up to the point where I could decode it.

The only other thing I noticed in the middle of the oops appeared this line:

Process kswapd (pid: 3, stackpage = f7eeb000)

I do hope to use this box as a server, and want to run 2.4.0 on it, so I'll do
everything I can to help you guys get this machine stable.

Oh perhaps I should list a little bit of the hardware in the machine:

Motherboard: Tyan S1867 Thunder 2500
Chipset: ServerWorks ServerSet III HE
             SMC 37B787 Super I/O
CPUs: Intel Pentium III EB 667 x2
RAM: 256MB Micron PC133 ECC Registered DIMMs x4
SCSI: Dual Channel Ultra2 LSI Symbios SYM53C896
Ethernet: Intel 82559
Audio: Creative Labs PCI ES1373 AC'97 CODEC
IDE: 2 channels EIDE UltraDMA
Video: Nvidia TNT2 Vanta 8MB AGP

And now the oops:

ksymoops 2.3.4 on i686 2.4.0-test5. Options used
     -v /usr/src/linux/vmlinux (specified)
     -K (specified)
     -L (specified)
     -O (specified)
     -m /usr/src/linux/System.map (specified)

Unable to handle kernel NULL pointer derefernce at virtual address 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0125353>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010212
eax: c02d1fac ebx: ee10bfe4 ecx: c1b56cc0 edx: 00000000
esi: ee10c000 edi: 00000737 ebp: 00000040 esp: f7eebfac
ds: 0018 es: 0018 ss: 0018
Stack: 00000f00 00000002 f7eea319 00000040 00000000 c012be92 00000040 00000004
       00000f00 c021ef45 f7eea319 0008e000 f7eea000 c012bc65 00000004 c1e31fb8
       00000000 c01096a8 00000000 00000078 c0273fbc
Call Trace: [<c012ba92>] [<c021ef45>] [<c01096a8>]
Code: 89 02 b8 02 00 00 00 f0 0f b3 46 fc 19 d2 0f 85 4c 01

>>EIP; c0125353 <shrink_mmap+57/258> <=====
Trace; c012ba92 <do_try_to_free_pages+8e/1d8>
Trace; c021ef45 <tvecs+1a1d/ae38>
Trace; c01096a8 <kernel_thread+28/38>
Code; c0125353 <shrink_mmap+57/258>
00000000 <_EIP>:
Code; c0125353 <shrink_mmap+57/258> <=====
   0: 89 02 mov %eax,(%edx) <=====
Code; c0125355 <shrink_mmap+59/258>
   2: b8 02 00 00 00 mov $0x2,%eax
Code; c012535a <shrink_mmap+5e/258>
   7: f0 0f b3 46 fc lock btr %eax,0xfffffffc(%esi)
Code; c012535f <shrink_mmap+63/258>
   c: 19 d2 sbb %edx,%edx
Code; c0125361 <shrink_mmap+65/258>
   e: 0f 85 4c 01 00 00 jne 160 <_EIP+0x160> c01254b3
<shrink_mmap+1b7/258>

So what now?
Chris

-- 
Two penguins were walking on an iceburg.  The first one said to the
second, "you look like you are wearing a tuxedo."  The second one said,
"I might be..."
                                              --David Lynch, Twin Peaks

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