Oops in iput

From: Florian Lohoff (flo@rfc822.org)
Date: Mon Jun 25 2001 - 13:16:12 EST

oops in iput - Kernel 2.2.19/i386 + ide-udma patches + ext3 patches (0.0.7a)

Intel BX chipset, SCSI Disks Symbios chipset - The crashing process
is the master process of "postfix" an MTA.

Just before the crash all processes on that machine started to segfault
in nameserver resolution (remote dns server) and after 2-3 minutes
this oops happened.

ksymoops 2.3.4 on i686 2.2.19. Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.2.19/ (default)
     -m /boot/System.map-2.2.19 (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.

Unable to handle kernel paging request at virtual address 4ed90398
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c0133ca7>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 4ed90330 ebx: 00000000 ecx: 00000000 edx: c01eef0c
esi: 4ed90330 edi: ce27ed00 ebp: 00000002 esp: cf04ddac
ds: 0018 es: 0018 ss: 0018
Process master (pid: 297, process nr: 31, stackpage=cf04d000)
Stack: cf1859a0 00000001 cef7db18 cef7db18 cf1859a0 c015882f 4ed90330 00000000
       ce27ec80 00000002 ced90330 ced90330 ce27ed00 00000002 ceadc0c0 00000000
       cfce5860 c0158be3 ced903e0 ceeda140 00000000 00000002 ceeda140 ced90330
Call Trace: [<c015882f>] [<c0158be3>] [<c011b26c>] [<c01262bd>] [<c011d2b5>] [<c012745c>] [<c0127453>]
       [<c01139bb>] [<c012634b>] [<c011073e>] [<c0113958>] [<c01184f4>] [<c011847d>] [<c0109fbb>] [<c01111b1>]
       [<c0109583>] [<c010a100>]
Code: 8b 46 68 85 c0 74 09 8b 40 18 85 c0 74 02 89 c3 85 db 74 10

>>EIP; c0133ca7 <iput+13/228> <=====
Trace; c015882f <sock_release+57/60>
Trace; c0158be3 <sock_close+3f/4c>
Trace; c011b26c <clear_page_tables+ac/b4>
Trace; c01262bd <__fput+25/54>
Trace; c011d2b5 <exit_mmap+115/120>
Trace; c012745c <fput+20/54>
Trace; c0127453 <fput+17/54>
Trace; c01139bb <mmput+3f/48>
Trace; c012634b <filp_close+5f/6c>
Trace; c011073e <send_sig_info+182/2c0>
Trace; c0113958 <mm_release+10/34>
Trace; c01184f4 <do_exit+140/2a0>
Trace; c011847d <do_exit+c9/2a0>
Trace; c0109fbb <do_signal+21f/298>
Trace; c01111b1 <sys_kill+61/70>
Trace; c0109583 <sys_sigreturn+b7/e8>
Trace; c010a100 <signal_return+14/18>
Code; c0133ca7 <iput+13/228>
00000000 <_EIP>:
Code; c0133ca7 <iput+13/228> <=====
   0: 8b 46 68 mov 0x68(%esi),%eax <=====
Code; c0133caa <iput+16/228>
   3: 85 c0 test %eax,%eax
Code; c0133cac <iput+18/228>
   5: 74 09 je 10 <_EIP+0x10> c0133cb7 <iput+23/228>
Code; c0133cae <iput+1a/228>
   7: 8b 40 18 mov 0x18(%eax),%eax
Code; c0133cb1 <iput+1d/228>
   a: 85 c0 test %eax,%eax
Code; c0133cb3 <iput+1f/228>
   c: 74 02 je 10 <_EIP+0x10> c0133cb7 <iput+23/228>
Code; c0133cb5 <iput+21/228>
   e: 89 c3 mov %eax,%ebx
Code; c0133cb7 <iput+23/228>
  10: 85 db test %ebx,%ebx
Code; c0133cb9 <iput+25/228>
  12: 74 10 je 24 <_EIP+0x24> c0133ccb <iput+37/228>

1 warning issued. Results may not be reliable.

Florian Lohoff                  flo@rfc822.org             +49-5201-669912
     Why is it called "common sense" when nobody seems to have any?

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This archive was generated by hypermail 2b29 : Sat Jun 30 2001 - 21:00:12 EST