ksymoops 2.4.6 on i686 2.4.19-rc2.  Options used
     -v vmlinux (specified)
     -k ksyms (specified)
     -l lsmod (specified)
     -o /lib/modules/2.4.19-rc2/ (default)
     -m System.map (specified)

kernel BUG at filemap.c:843!
invalid operand: 0000
CPU:    0
EIP:    0010:[<c012574e>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000   ebx: c11e6fb8   ecx: 00000017   edx: c02712f4
esi: c1420b24   edi: c6ba5a00   ebp: cdcc2be0   esp: cf6c3a64
ds: 0018   es: 0018   ss: 0018
Process smbd (pid: 29540, stackpage=cf6c3000)
Stack: ce9217e0 d787f958 c01a38d4 ce9217e0 d787f958 d787f800 ffffffff c11e6fb8 
       c01a3911 ce9217e0 00000001 00000001 d88ae190 ce9217e0 00000001 d787f000 
       d787f800 00000000 ce9217e0 00000000 00000000 ffffffe4 00000000 00000000 
Call Trace:    [<c01a38d4>] [<c01a3911>] [<d88ae190>] [<d88ae487>] [<d889914c>]
  [<c01cc68c>] [<c01a3900>] [<c01a3d03>] [<c0125989>] [<c01a3e81>] [<c01a435d>]
  [<c01a3f77>] [<c01a36d6>] [<c01a30e0>] [<c0198d1c>] [<c0185b18>] [<c0186b27>]
  [<c0184c91>] [<c0143b66>] [<c0184fda>] [<c019a0bc>] [<c019e0e3>] [<c01a8744>]
  [<c013a00b>] [<c013a737>] [<c0139d8d>] [<c013a9d6>] [<c013ad61>] [<c0137e5d>]
  [<c01316c3>] [<c010856f>]
Code: 0f 0b 4b 03 20 54 24 c0 8d 46 04 39 46 04 74 0e 31 c9 ba 03 


>>EIP; c012574e <unlock_page+42/64>   <=====

>>ebx; c11e6fb8 <_end+efce40/1859bee8>
>>edx; c02712f4 <contig_page_data+b4/340>
>>esi; c1420b24 <_end+11369ac/1859bee8>
>>edi; c6ba5a00 <_end+68bb888/1859bee8>
>>ebp; cdcc2be0 <_end+d9d8a68/1859bee8>
>>esp; cf6c3a64 <_end+f3d98ec/1859bee8>

Trace; c01a38d4 <_end_pagebuf_page_io_multi+dc/108>
Trace; c01a3911 <_end_io_multi_full+11/18>
Trace; d88ae190 <[raid5]handle_stripe+ce8/e48>
Trace; d88ae487 <[raid5]raid5_make_request+df/104>
Trace; d889914c <[md]md_make_request+38/64>
Trace; c01cc68c <generic_make_request+128/138>
Trace; c01a3900 <_end_io_multi_full+0/18>
Trace; c01a3d03 <_pagebuf_page_io+3d3/440>
Trace; c0125989 <find_or_create_page+45/d0>
Trace; c01a3e81 <_page_buf_page_apply+111/120>
Trace; c01a435d <_pagebuf_segment_apply+b5/114>
Trace; c01a3f77 <pagebuf_iorequest+e7/138>
Trace; c01a36d6 <pagebuf_iostart+76/90>
Trace; c01a30e0 <pagebuf_get+d4/110>
Trace; c0198d1c <xfs_trans_read_buf+3c/2f4>
Trace; c0185b18 <xfs_itobp+100/1b0>
Trace; c0186b27 <xfs_iread+4b/198>
Trace; c0184c91 <xfs_iget_core+1d1/4a4>
Trace; c0143b66 <iget4_locked+ba/cc>
Trace; c0184fda <xfs_iget+76/138>
Trace; c019a0bc <xfs_dir_lookup_int+174/2f4>
Trace; c019e0e3 <xfs_lookup+87/bc>
Trace; c01a8744 <linvfs_lookup+44/98>
Trace; c013a00b <real_lookup+53/c4>
Trace; c013a737 <link_path_walk+5cf/854>
Trace; c0139d8d <getname+5d/9c>
Trace; c013a9d6 <path_walk+1a/1c>
Trace; c013ad61 <__user_walk+35/50>
Trace; c0137e5d <sys_stat64+19/70>
Trace; c01316c3 <sys_close+43/54>
Trace; c010856f <system_call+33/38>

Code;  c012574e <unlock_page+42/64>
00000000 <_EIP>:
Code;  c012574e <unlock_page+42/64>   <=====
   0:   0f 0b                     ud2a      <=====
Code;  c0125750 <unlock_page+44/64>
   2:   4b                        dec    %ebx
Code;  c0125751 <unlock_page+45/64>
   3:   03 20                     add    (%eax),%esp
Code;  c0125753 <unlock_page+47/64>
   5:   54                        push   %esp
Code;  c0125754 <unlock_page+48/64>
   6:   24 c0                     and    $0xc0,%al
Code;  c0125756 <unlock_page+4a/64>
   8:   8d 46 04                  lea    0x4(%esi),%eax
Code;  c0125759 <unlock_page+4d/64>
   b:   39 46 04                  cmp    %eax,0x4(%esi)
Code;  c012575c <unlock_page+50/64>
   e:   74 0e                     je     1e <_EIP+0x1e> c012576c <unlock_page+60/64>
Code;  c012575e <unlock_page+52/64>
  10:   31 c9                     xor    %ecx,%ecx
Code;  c0125760 <unlock_page+54/64>
  12:   ba 03 00 00 00            mov    $0x3,%edx