Messages in this thread | | | Date | Thu, 06 Jun 2002 16:18:01 -0700 | From | "Martin J. Bligh" <> | Subject | Re: Panic from 2.4.19-pre9-aa2 |
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> not really sure what could be the problem, it would be interesting to > see if you can reproduce it.
Yup, do 2 or 3 kernel compiles and it crashes again. Here's a slightly different oops:
Unable to handle kernel NULL pointer dereference at virtual address 00000282 c0117feb *pde = 00000000 Oops: 0000 CPU: 6 EIP: 0010:[<c0117feb>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010046 eax: c6369f6c ebx: 00000282 ecx: c029a488 edx: c4ff5b24 esi: c4ff5b20 edi: 00000282 ebp: c6227f70 esp: c6227f54 ds: 0018 es: 0018 ss: 0018 Process cpp (pid: 16679, stackpage=c6227000) Stack: 00001000 c4ff5b20 c5773180 00000001 c4ff5b24 00000282 00000001 000526a9 c0148311 00000000 ffffffea c5eab160 000536a9 c6526000 c6226000 c57731ec 00001000 00001000 c013ead7 c5eab160 4011000c 000536a9 c5eab180 c6226000 Call Trace: [<c0148311>] [<c013ead7>] [<c0108a7b>] Code: 8b 3b 0f 18 07 3b 5d f4 75 d0 c6 06 01 ff 75 f8 9d 8d 74 26
>>EIP; c0117fea <__wake_up+5a/7c> <===== Trace; c0148310 <pipe_write+1bc/294> Trace; c013ead6 <sys_write+8e/100> Trace; c0108a7a <system_call+2e/34> Code; c0117fea <__wake_up+5a/7c> 00000000 <_EIP>: Code; c0117fea <__wake_up+5a/7c> <===== 0: 8b 3b mov (%ebx),%edi <===== Code; c0117fec <__wake_up+5c/7c> 2: 0f 18 07 prefetchnta (%edi) Code; c0117fee <__wake_up+5e/7c> 5: 3b 5d f4 cmp 0xfffffff4(%ebp),%ebx Code; c0117ff2 <__wake_up+62/7c> 8: 75 d0 jne ffffffda <_EIP+0xffffffda> c0117fc4 <__ wake_up+34/7c> Code; c0117ff4 <__wake_up+64/7c> a: c6 06 01 movb $0x1,(%esi) Code; c0117ff6 <__wake_up+66/7c> d: ff 75 f8 pushl 0xfffffff8(%ebp) Code; c0117ffa <__wake_up+6a/7c> 10: 9d popf Code; c0117ffa <__wake_up+6a/7c> 11: 8d 74 26 00 lea 0x0(%esi,1),%esi
> Also if for example you enabled numa-q you > may want to try to disable it and see if w/o discontigmem the problem > goes away, if we could isolate it to a config option, it would help a lot.
OK, will see if I can do that - I'm out for a few days, so it may be next Tuesday before I can do this
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