ksymoops 2.3.3 on i686 2.3.99-pre4-4.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.3.99-pre4-4/ (default)
     -m /boot/System.map-2.3.99-pre4-4 (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.

invalid operand: 0000
CPU:    0
EIP:    0010:[<c013c04d>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: 0000001c   ebx: c30809c0     ecx: c01fa4bc       edx: c01fa4bc
esi: ffffffff   edi: c3b9d400     ebp: c01fdde0       esp: c35674fc
ds: 0018   es: 0018   ss: 0018
Process umount (pid: 7649, stackpage=c3567000)
Stack: c01cf2ad c01cf348 000000ac c30809c0 c2d15800 c013c2c0 c30809c0 fffffffe
       c3b9d400 00000307 c0130e58 c3b9d400 c01fdde0 00000307 fffffffa c0130fd7
       00000307 00000000 00000001 00000000 00000307 c3b4f720 08053040 c013110f
Call Trace: [<c01cf2ad>] [<c01cf348>] [<c013c2c0>] [<c0130e58>] [<c0130fd7>] [<c013110f>] [<c010ad0c>]
Code: 0f 0b 83 c4 0c 5b c3 8d 76 00 53 8b 5c 24 08 8d 43 18 39

>>EIP; c013c04d <dput+14d/158>   <=====
Trace; c01cf2ad <tvecs+6685/f3d8>
Trace; c01cf348 <tvecs+6720/f3d8>
Trace; c013c2c0 <shrink_dcache_sb+124/130>
Trace; c0130e58 <do_umount+4c/14c>
Trace; c0130fd7 <umount_dev+7f/fc>
Trace; c013110f <sys_umount+bb/c8>
Trace; c010ad0c <system_call+34/38>
Code;  c013c04d <dput+14d/158>
00000000 <_EIP>:
Code;  c013c04d <dput+14d/158>   <=====
   0:   0f 0b                     ud2a      <=====
Code;  c013c04f <dput+14f/158>
   2:   83 c4 0c                  add    $0xc,%esp
Code;  c013c052 <dput+152/158>
   5:   5b                        pop    %ebx
Code;  c013c053 <dput+153/158>
   6:   c3                        ret    
Code;  c013c054 <dput+154/158>
   7:   8d 76 00                  lea    0x0(%esi),%esi
Code;  c013c057 <dput+157/158>
   a:   53                        push   %ebx
Code;  c013c058 <d_invalidate+0/5c>
   b:   8b 5c 24 08               mov    0x8(%esp,1),%ebx
Code;  c013c05c <d_invalidate+4/5c>
   f:   8d 43 18                  lea    0x18(%ebx),%eax
Code;  c013c05f <d_invalidate+7/5c>
  12:   39 00                     cmp    %eax,(%eax)


1 warning issued.  Results may not be reliable.