[opps] 2.5.64-mm1

Ed Tomlinson (tomlins@cam.org)
Tue, 11 Mar 2003 17:46:52 -0500


Got home this afternoon and found my box has paniced with:

Unable to handle kernel NULL pointer dereference at virtual address 0000003c
printing eip:
c011372b
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c011372b>] Not tainted
EFLAGS: 00010007
EIP is at do_schedule+0x193/0x330
eax: dff8a000 ebx: ffffffe0 ecx: c030e0a0 edx: 00000003
esi: dff8c660 edi: 00000000 ebp: dff8bfdc esp: dff8bfc4
ds: 007b es: 007b ss: 0068
Process ksoftirqd/0 (pid: 2, threadinfo=dff8a000 task=dff8c660)
Stack: dff8a000 dff8a000 00000000 dff8a000 00000000 dff8c660 dff8bfec c011a3be
c011a358 00000000 00000000 c01070e9 00000000 00000000 00000000
Call Trace:
[<c011a3be>] ksoftirqd+0x66/0xa4
[<c011a358>] ksoftirqd+0x0/0xa4
[<c01070e9>] kernel_thread_helper+0x5/0xc

Code: 8b 53 5c 8b 7e 60 85 d2 75 0b 89 7b 60 ff 47 18 eb 78 8d 76

and feeding the eip and code to ksymoops:

>>EIP; c011372b <do_schedule+193/330> <=====

Code; c011372b <do_schedule+193/330>
00000000 <_EIP>:
Code; c011372b <do_schedule+193/330> <=====
0: 8b 53 5c mov 0x5c(%ebx),%edx <=====
Code; c011372e <do_schedule+196/330>
3: 8b 7e 60 mov 0x60(%esi),%edi
Code; c0113731 <do_schedule+199/330>
6: 85 d2 test %edx,%edx
Code; c0113733 <do_schedule+19b/330>
8: 75 0b jne 15 <_EIP+0x15>
Code; c0113735 <do_schedule+19d/330>
a: 89 7b 60 mov %edi,0x60(%ebx)
Code; c0113738 <do_schedule+1a0/330>
d: ff 47 18 incl 0x18(%edi)
Code; c011373b <do_schedule+1a3/330>
10: eb 78 jmp 8a <_EIP+0x8a>
Code; c011373d <do_schedule+1a5/330>
12: 8d 76 00 lea 0x0(%esi),%esi

Does this ring bells anywhere?

Ed Tomlinson
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