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SubjectOops in kmem_cache_free with 2.4.14
Hi all.

I got this oops in oops while loading mozilla. It killed my X session, but
the box appears to be running stable again. I haven't been able to
reproduce it.

My kernel is non-SMP 2.4.14 with the ext3 patches.

ksymoops 2.4.1 on i686 2.4.14. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.14/ (default)
-m /boot/System.map-2.4.14 (specified)

Unable to handle kernel paging request at virtual address cfa5b04c
c0128478
*pde = 0f8001b9
Oops: 0003
CPU: 0
EIP: 0010:[kmem_cache_free+56/160] Not tainted
EIP: 0010:[<c0128478>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00210006
eax: 00000000 ebx: c1607360 ecx: cfa5b030 edx: 00000000
esi: 00200086 edi: 00000001 ebp: 0000000e esp: d4e05ed8
ds: 0018 es: 0018 ss: 0018
Process X (pid: 2186, stackpage=d4e05000)
Stack: 0000000e d4e04568 cfa5b178 d4e05f50 c011c063 c1607360 cfa5b154
d4e04000
0000000e d4e04000 d4e05f30 c011c11d 0000000e d4e04568 d4e05f30
d4e04000
00000000 c01069b9 d4e04560 d4e05f30 d4e04560 d4e05fc4 0000000e
00000000
Call Trace: [collect_signal+147/224] [dequeue_signal+109/176]
[do_signal+89/672] [process_timeout+0/80] [process_timeout+0/80]
Call Trace: [<c011c063>] [<c011c11d>] [<c01069b9>] [<c0111900>]
[<c0111900>]
[<c011b9f3>] [<c0111c51>] [<c0106d24>]
Code: 89 44 b9 18 89 79 14 8b 51 10 8d 42 ff 89 41 10 85 c0 75 24

>>EIP; c0128478 <kmem_cache_free+38/a0> <=====
Trace; c011c063 <collect_signal+93/e0>
Trace; c011c11d <dequeue_signal+6d/b0>
Trace; c01069b9 <do_signal+59/2a0>
Trace; c0111900 <process_timeout+0/50>
Trace; c0111900 <process_timeout+0/50>
Trace; c011b9f3 <timer_bh+213/250>
Trace; c0111c51 <schedule+251/390>
Trace; c0106d24 <signal_return+14/18>
Code; c0128478 <kmem_cache_free+38/a0>
00000000 <_EIP>:
Code; c0128478 <kmem_cache_free+38/a0> <=====
0: 89 44 b9 18 mov %eax,0x18(%ecx,%edi,4) <=====
Code; c012847c <kmem_cache_free+3c/a0>
4: 89 79 14 mov %edi,0x14(%ecx)
Code; c012847f <kmem_cache_free+3f/a0>
7: 8b 51 10 mov 0x10(%ecx),%edx
Code; c0128482 <kmem_cache_free+42/a0>
a: 8d 42 ff lea 0xffffffff(%edx),%eax
Code; c0128485 <kmem_cache_free+45/a0>
d: 89 41 10 mov %eax,0x10(%ecx)
Code; c0128488 <kmem_cache_free+48/a0>
10: 85 c0 test %eax,%eax
Code; c012848a <kmem_cache_free+4a/a0>
12: 75 24 jne 38 <_EIP+0x38> c01284b0
<kmem_cache_free+70/a0>


Michael

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