oops and prune_icache
I'm receiving a recurring kernel oops on a machine running sid and
2.4.18. The oops and ksymoops output are below. This particular oops
occurred after running dmesg. I am new to oops tracing. Should I join
the kernel mailing list and post it there? Could this just be something
like bad RAM?
Thanks.
ksymoops 2.4.5 on i686 2.4.18. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18/ (default)
-m /boot/System.map-2.4.18 (default)
<1>Unable to handle kernel NULL pointer dereference at virtual address
00000004
c013cd83
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c013cd83>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010213
eax: 00000001 ebx: 00000000 ecx: 00000001 edx: c74cc240
esi: c74cc240 edi: 00000000 ebp: c2797e08 esp: c2797df0
ds: 0018 es: 0018 ss: 0018
Process dpkg (pid: 1688, stackpage=c2797000)
Stack: 00000020 000001d2 00000020 00000000 c2797e00 c2797e00 00000006
c013ce3f
00000b50 c01269ad 00000006 000001d2 00000006 000001d2 00000006
000001d2
c01ee848 c01ee848 c01ee848 c01269f3 00000020 c2796000 00000101
00000000
Call Trace: [<c013ce3f>] [<c01269ad>] [<c01269f3>] [<c0127202>]
[<c0127422>]
[<c01271b2>] [<c011eb78>] [<c011ec1f>] [<c011ed5a>] [<c010f778>]
[<c010f618>]
[<c0119107>] [<c011ff14>] [<c011642a>] [<c011f013>] [<c0106c0c>]
Code: 8b 7f 04 8d 73 f8 8b 86 08 01 00 00 a8 38 75 e6 0b 86 c8 00
>>EIP; c013cd83 <prune_icache+2b/cc> <=====
>>edx; c74cc240 <_end+727a4b4/865c274>
>>esi; c74cc240 <_end+727a4b4/865c274>
>>ebp; c2797e08 <_end+254607c/865c274>
>>esp; c2797df0 <_end+2546064/865c274>
Trace; c013ce3f <shrink_icache_memory+1b/30>
Trace; c01269ad <shrink_caches+6d/7c>
Trace; c01269f3 <try_to_free_pages+37/58>
Trace; c0127202 <balance_classzone+4e/168>
Trace; c0127422 <__alloc_pages+106/164>
Trace; c01271b2 <_alloc_pages+16/18>
Trace; c011eb78 <do_anonymous_page+30/a4>
Trace; c011ec1f <do_no_page+33/11c>
Trace; c011ed5a <handle_mm_fault+52/b4>
Trace; c010f778 <do_page_fault+160/48c>
Trace; c010f618 <do_page_fault+0/48c>
Trace; c0119107 <update_wall_time+b/34>
Trace; c011ff14 <do_brk+118/1fc>
Trace; c011642a <do_softirq+5a/a4>
Trace; c011f013 <sys_brk+bb/e4>
Trace; c0106c0c <error_code+34/3c>
Code; c013cd83 <prune_icache+2b/cc>
00000000 <_EIP>:
Code; c013cd83 <prune_icache+2b/cc> <=====
0: 8b 7f 04 mov 0x4(%edi),%edi <=====
Code; c013cd86 <prune_icache+2e/cc>
3: 8d 73 f8 lea 0xfffffff8(%ebx),%esi
Code; c013cd89 <prune_icache+31/cc>
6: 8b 86 08 01 00 00 mov 0x108(%esi),%eax
Code; c013cd8f <prune_icache+37/cc>
c: a8 38 test $0x38,%al
Code; c013cd91 <prune_icache+39/cc>
e: 75 e6 jne fffffff6 <_EIP+0xfffffff6>
c013cd79 <prune_icache+21/cc>
Code; c013cd93 <prune_icache+3b/cc>
10: 0b 86 c8 00 00 00 or 0xc8(%esi),%eax
--
Brian J. Stults
Department of Sociology
University of Florida
Box 117330
Gainesville, Florida 32611-7330
phone: (352) 392-0265 x286
fax: (352) 392-6568
e-mail: bstults@soc.ufl.edu
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