[OOPS] getting a bit farther tracking it.

From: Chris Meadors (clubneon@hereintown.net)
Date: Thu Aug 03 2000 - 12:48:26 EST

Well I think I have rulled out the hardware on this motherboard. I have run
memtest86, burnP6, and burnBX for very extended periods on time on this machine
with no errors or crashes.

The only time I see this problem is when I push the hard drives really hard. I
can "make clean; make -j2 bzImage" in a loop and nothing goes wrong. Even "make
-j bzImage" finished without complaints. But I can't get glibc to finish a
compile without error.

So I got out bonnie++ and ran it though it's paces. It finished fine. So I ran
a "bonnie++ -p 4" and started each of "bonnie++ -y" processes on seperate
VCs. That is when I got this oops (followed by a second NMI oops, which I
didn't copy down):

Unable to handle kernel paging request at virtual address fffffff4 printing eip:
*pde = 00003063
Oops: 0000
CPU: 1
EIP: 0010:[<c011ed5c>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010082
eax: e6ad85e0 ebx: 00000000 ecx: f7b6c03c edx: 00000016
esi: ffffffc4 edi: c029eee0 ebp: f7821fbc esp: f7821f58
ds: 0018 es: 0018 ss: 0018
Stack: f7820000 00001768 000005da 00000000 00002000 daf0f900 00000000 f7ee8000
       00000000 00003bb3 00000004 00001000 00002000 f7820000 f6e76b9c f6e76b00
       00000000 c012fc9e f41da120 bffff534 00000002 0000002e 00000001 f7820000
Call Trace: [<c012fc98>] [<c010b211>]
Code: 83 7b f4 00 75 59 8b 45 ec 85 43 fc 74 51 8b 55 f8 8b 52 4c

>>EIP; c011ed5c <register_proc_table+3c/118> <=====
Trace; c012fc98 <sys_write+9c/b0>
Trace; c010b211 <reschedule+5/c>
Code; c011ed5c <register_proc_table+3c/118>
00000000 <_EIP>:
Code; c011ed5c <register_proc_table+3c/118> <=====
   0: 83 7b f4 00 cmpl $0x0,0xfffffff4(%ebx) <=====
Code; c011ed60 <register_proc_table+40/118>
   4: 75 59 jne 5f <_EIP+0x5f> c011edbb
Code; c011ed62 <register_proc_table+42/118>
   6: 8b 45 ec mov 0xffffffec(%ebp),%eax
Code; c011ed65 <register_proc_table+45/118>
   9: 85 43 fc test %eax,0xfffffffc(%ebx)
Code; c011ed68 <register_proc_table+48/118>
   c: 74 51 je 5f <_EIP+0x5f> c011edbb
Code; c011ed6a <register_proc_table+4a/118>
   e: 8b 55 f8 mov 0xfffffff8(%ebp),%edx
Code; c011ed6d <register_proc_table+4d/118>
  11: 8b 52 4c mov 0x4c(%edx),%edx

I'll keep hunting,

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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