Hello,
I've seen a few of these reports on the list -
I'm running 2.4.19-pre4-ac3 + preemptive and
the -aa low latency patch. (Andrew's mini-lowlat)
The box had been up for about 4 days when the
oops happened, while playing quake 3 arena.
No ill effects were noted, the box is still up
and everything appears to be working.
Red Hat 7.2+ updates -
P4b 1600
Genuine Intel P4 mobo
512 MB RAM
Yes, my kernel is tainted with nvidia, but IMHO
the nvidia driver has zero connection with the
oops - So, FWIW, here's the oops:
kernel BUG at page_alloc.c:131!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c012efd7>] Tainted: P
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00013282
eax: 00000000 ebx: c1552120 ecx: c100000c edx: dad607a8
esi: 00000000 edi: 00000000 ebp: 00007000 esp: dda91ed8
ds: 0018 es: 0018 ss: 0018
Process X (pid: 2118, stackpage=dda91000)
Stack: c025f278 c1552120 00000000 00000001 c1552120 00008000 c1552120
c1552120
00008000 dcba1640 00007000 c0122592 c1552120 1a319027 00000008
00000000
48591000 de241484 48589000 00000000 48591000 de241484 00030002
dc0dab80
Call Trace: [<c0122592>] [<c0125054>] [<c012503d>] [<c0125114>]
[<c0106efb>]
Code: 0f 0b 83 00 22 1b 1f c0 c6 43 24 05 8b 43 18 89 f1 83 e0 eb
>>EIP; c012efd7 <__free_pages_ok+c7/2a0> <=====
Trace; c0122592 <zap_page_range+192/260>
Trace; c0125054 <do_munmap+214/2a0>
Trace; c012503d <do_munmap+1fd/2a0>
Trace; c0125114 <sys_munmap+34/50>
Trace; c0106efb <system_call+33/38>
Code; c012efd7 <__free_pages_ok+c7/2a0>
00000000 <_EIP>:
Code; c012efd7 <__free_pages_ok+c7/2a0> <=====
0: 0f 0b ud2a <=====
Code; c012efd9 <__free_pages_ok+c9/2a0>
2: 83 00 22 addl $0x22,(%eax)
Code; c012efdc <__free_pages_ok+cc/2a0>
5: 1b 1f sbb (%edi),%ebx
Code; c012efde <__free_pages_ok+ce/2a0>
7: c0 c6 43 rol $0x43,%dh
Code; c012efe1 <__free_pages_ok+d1/2a0>
a: 24 05 and $0x5,%al
Code; c012efe3 <__free_pages_ok+d3/2a0>
c: 8b 43 18 mov 0x18(%ebx),%eax
Code; c012efe6 <__free_pages_ok+d6/2a0>
f: 89 f1 mov %esi,%ecx
Code; c012efe8 <__free_pages_ok+d8/2a0>
11: 83 e0 eb and $0xffffffeb,%eax