[2.4.21]: nbd ksymoops-report

From: Bernd Schubert (bernd.schubert@pci.uni-heidelberg.de)
Date: Thu Aug 07 2003 - 09:04:05 EST


Hi,

every time when nbd-client disconnects a nbd-device the decoded oops
from below will happen.
This only happens after we upgraded from 2.4.20 to 2.4.21,
so I guess the backported update from 2.5.50 causes this.
Since the changelog for 2.4.22-rc1 doesn't describe any updates to nbd,
I think this will be also valid for this kernel version. I will check this
later on this evening.

ksymoops 2.4.8 on i686 2.4.21-tc2. Options used
     -v /usr/src/System.maps/vmlinux__2.4.21-tc2 (specified)
     -k /proc/ksyms (specified)
     -l /proc/modules (default)
     -o /lib/modules/2.4.21-tc2/ (default)
     -m /usr/src/System.maps/System.map__2.4.21-tc2 (specified)

Aug 6 17:24:31 goedel kernel: d89e2be7
Aug 6 17:24:31 goedel kernel: Oops: 0000
Aug 6 17:24:31 goedel kernel: CPU: 0
Aug 6 17:24:31 goedel kernel: EIP: 1010:[<d89e2be7>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Aug 6 17:24:31 goedel kernel: EFLAGS: 00010282
Aug 6 17:24:31 goedel kernel: eax: 00000000 ebx: d89e43c4 ecx: 00000001 edx: 00000001
Aug 6 17:24:31 goedel kernel: esi: 00000000 edi: d89e43a0 ebp: 00000000 esp: d61a5f14
Aug 6 17:24:31 goedel kernel: ds: 1018 es: 1018 ss: 1018
Aug 6 17:24:31 goedel kernel: Process nbd-client (pid: 650, stackpage=d61a5000)
Aug 6 17:24:31 goedel kernel: Stack: d89e367c d4cd56e0 00000400 0000ab03 ffffffe7 00000000 d61a4000 d7fe44fc
Aug 6 17:24:31 goedel kernel: d61a4000 00098c93 00098c94 00030002 00098c96 00098c97 00098d55 00098d56
Aug 6 17:24:31 goedel kernel: 00098d57 00098d58 00098d59 00098d5a 00098d5b 00098d5c 00098d5d 00098e1b
Aug 6 17:24:31 goedel kernel: Call Trace: [<d89e367c>] [<c0143f94>] [<c014c157>] [<c010a013>]
Aug 6 17:24:31 goedel kernel: Code: 8b 50 08 6a 03 50 8b 42 28 ff d0 c7 86 ac 43 9e d8 00 00 00

>>EIP; d89e2be7 <[nbd]nbd_ioctl+353/480> <=====

>>ebx; d89e43c4 <[nbd].data.end+a4d/96e9>
>>edi; d89e43a0 <[nbd].data.end+a29/96e9>
>>esp; d61a5f14 <_end+15e07790/185558dc>

Trace; d89e367c <[nbd]__module_license+5db/78b>
Trace; c0143f94 <blkdev_ioctl+28/34>
Trace; c014c157 <sys_ioctl+1bb/1f7>
Trace; c010a013 <system_call+33/40>

Code; d89e2be7 <[nbd]nbd_ioctl+353/480>
00000000 <_EIP>:
Code; d89e2be7 <[nbd]nbd_ioctl+353/480> <=====
   0: 8b 50 08 mov 0x8(%eax),%edx <=====
Code; d89e2bea <[nbd]nbd_ioctl+356/480>
   3: 6a 03 push $0x3
Code; d89e2bec <[nbd]nbd_ioctl+358/480>
   5: 50 push %eax
Code; d89e2bed <[nbd]nbd_ioctl+359/480>
   6: 8b 42 28 mov 0x28(%edx),%eax
Code; d89e2bf0 <[nbd]nbd_ioctl+35c/480>
   9: ff d0 call *%eax
Code; d89e2bf2 <[nbd]nbd_ioctl+35e/480>
   b: c7 86 ac 43 9e d8 00 movl $0x0,0xd89e43ac(%esi)
Code; d89e2bf9 <[nbd]nbd_ioctl+365/480>
  12: 00 00 00

-- 
Bernd Schubert
Physikalisch Chemisches Institut / Theoretische Chemie
Universität Heidelberg
INF 229
69120 Heidelberg
e-mail: bernd.schubert@pci.uni-heidelberg.de
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