Herbert Poetzl wrote:
Don't hold your breath :(. Can not find a null modem and cables :(. Plus the test box is down and didn't auto reboot this time so I'm sending someone in to revive it :).
I can wait ;) ...
best, Herbert
Try again, JES
ksymoops 2.4.9 on i686 2.6.9-rc2-bk1-vs1.9.2.23b. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.9-rc2-bk1-vs1.9.2.23b/ (default)
-m /usr/src/linux/System.map (default)Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.
Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel NULL pointer dereference at virtual address 0000001c
c02ae990
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c02ae990>] Not tainted VLI
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286 (2.6.9-rc2-bk1-vs1.9.2.23b)
eax: 00000000 ebx: 00000000 ecx: f30d5800 edx: f3981000
esi: f7c0ccc0 edi: f4cba42c ebp: e47a0000 esp: e47a1f20
ds: 007b es: 007b ss: 0068
Stack: f7c0ccc0 f4cba28c f7c0cec0 f7c0ccc0 e47a1f60 000001c2 c02aee1f 00000000
f7c0ccdc f7c0cec0 f7c86080 c01750eb f7c0ced8 0000001a 000003e6 b7de601a
00000009 00000000 00000009 00000000 c03fc7c0 ddc23280 00000400 e47a1fac
Call Trace:
[<c02aee1f>] tcp_seq_next+0x53/0xad
[<c01750eb>] seq_read+0x1d8/0x268
[<c0159252>] vfs_read+0xc6/0x111
[<c01594cb>] sys_read+0x47/0x76
[<c0105e1d>] sysenter_past_esp+0x52/0x71
Code: 00 8b 4c 24 04 8b 34 24 8b 91 a4 01 00 00 8b 46 10 8b 4c 82 14 85 c9 74 20 b8 00 e0 ff ff 21 e0 8b 00 8b 98 10 05 00 00 8b 41 28 <39> 58 1c 74 4e 83 fb 01 74 49 85 c9 75 ef 8b 14 24 8b 42 10 83
>>EIP; c02ae990 <listening_get_next+17c/1b7> <=====
>>ecx; f30d5800 <pg0+32cd2800/3fbfb400> >>edx; f3981000 <pg0+3357e000/3fbfb400> >>esi; f7c0ccc0 <pg0+37809cc0/3fbfb400> >>edi; f4cba42c <pg0+348b742c/3fbfb400> >>ebp; e47a0000 <pg0+2439d000/3fbfb400> >>esp; e47a1f20 <pg0+2439ef20/3fbfb400>
Trace; c02aee1f <tcp_seq_next+ab/ad> Trace; c01750eb <traverse+18/176> Trace; c0159252 <do_sync_write+a5/d6> Trace; c01594cb <sys_pread64+4b/82> Trace; c0105e1d <sysenter_past_esp+52/71>
This architecture has variable length instructions, decoding before eip is unreliable, take these instructions with a pinch of salt.
Code; c02ae965 <listening_get_next+151/1b7> 00000000 <_EIP>: Code; c02ae965 <listening_get_next+151/1b7> 0: 00 8b 4c 24 04 8b add %cl,0x8b04244c(%ebx) Code; c02ae96b <listening_get_next+157/1b7> 6: 34 24 xor $0x24,%al Code; c02ae96d <listening_get_next+159/1b7> 8: 8b 91 a4 01 00 00 mov 0x1a4(%ecx),%edx Code; c02ae973 <listening_get_next+15f/1b7> e: 8b 46 10 mov 0x10(%esi),%eax Code; c02ae976 <listening_get_next+162/1b7> 11: 8b 4c 82 14 mov 0x14(%edx,%eax,4),%ecx Code; c02ae97a <listening_get_next+166/1b7> 15: 85 c9 test %ecx,%ecx Code; c02ae97c <listening_get_next+168/1b7> 17: 74 20 je 39 <_EIP+0x39> Code; c02ae97e <listening_get_next+16a/1b7> 19: b8 00 e0 ff ff mov $0xffffe000,%eax Code; c02ae983 <listening_get_next+16f/1b7> 1e: 21 e0 and %esp,%eax Code; c02ae985 <listening_get_next+171/1b7> 20: 8b 00 mov (%eax),%eax Code; c02ae987 <listening_get_next+173/1b7> 22: 8b 98 10 05 00 00 mov 0x510(%eax),%ebx Code; c02ae98d <listening_get_next+179/1b7> 28: 8b 41 28 mov 0x28(%ecx),%eax
This decode from eip onwards should be reliable
Code; c02ae990 <listening_get_next+17c/1b7> 00000000 <_EIP>: Code; c02ae990 <listening_get_next+17c/1b7> <===== 0: 39 58 1c cmp %ebx,0x1c(%eax) <===== Code; c02ae993 <listening_get_next+17f/1b7> 3: 74 4e je 53 <_EIP+0x53> Code; c02ae995 <listening_get_next+181/1b7> 5: 83 fb 01 cmp $0x1,%ebx Code; c02ae998 <listening_get_next+184/1b7> 8: 74 49 je 53 <_EIP+0x53> Code; c02ae99a <listening_get_next+186/1b7> a: 85 c9 test %ecx,%ecx Code; c02ae99c <listening_get_next+188/1b7> c: 75 ef jne fffffffd <_EIP+0xfffffffd> Code; c02ae99e <listening_get_next+18a/1b7> e: 8b 14 24 mov (%esp),%edx Code; c02ae9a1 <listening_get_next+18d/1b7> 11: 8b 42 10 mov 0x10(%edx),%eax Code; c02ae9a4 <listening_get_next+190/1b7> 14: 83 .byte 0x83
<0>Kernel panic - not syncing: Fatal exception in interrupt
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