[root@zebra24 ksymoops-2.4.3]# dmesg  | tail -20 | ./ksymoops -m /boot/System.44
ksymoops 2.4.3 on i686 2.4.14.  Options used
     -V (default)moops-2.4.3]# alias ks = ./ksymoops -m '/boot/System.map-2.4.''
     -k /proc/ksyms (default)
     -l /proc/modules (default)                                                 
     -o /lib/modules/2.4.14/ (default)                                          
     -m /boot/System.map-2.4.14 (specified)                                     
                                                                                
kernel BUG at slab.c:1203!                                                      
invalid operand: 0000                                                           
CPU:    0                                                                       
EIP:    0010:[<c0127ee3>]    Not tainted                                        
Using defaults from ksymoops -t elf32-i386 -a i386                              
EFLAGS: 00010086                                                                
eax: 0000001b   ebx: 00000004   ecx: 00000001   edx: 000022cd                   
esi: 00000004   edi: c10ff4e0   ebp: c358c26c   esp: c2d0fe5c                   
ds: 0018   es: 0018   ss: 0018                                                  
Process vconfig (pid: 631, stackpage=c2d0f000)                                  
Stack: c0283c0f 000004b3 c2f56800 c358c26c c10ff4e0 c2f56800 c0128748 c10ff4e0  
       c358c26c c2f56800 c48c960d 00000286 c10ff4e0 c2f56800 00000000 00000001  
       ffffffe7 c022c82e c2f56800 c2f56800 c022c9a8 c2f56800 c38bcf5c c38bcfa8  
Call Trace: [<c0128748>] [<c48c960d>] [<c022c82e>] [<c022c9a8>] [<c48c820d>]    
   [<c48c827b>] [<c48c886a>] [<c0259766>] [<c0224d1e>] [<c013b937>] [<c0106f0b> 
Code: 0f 0b 5a 59 8b 5c 9d 18 83 fb ff 75 e0 5b 31 c0 5e 5f 5d c3               
                                                                                
>>EIP; c0127ee2 <kmem_extra_free_checks+82/a0>   <=====                         
Trace; c0128748 <kfree+1d8/270>                                                 
Trace; c48c960c <[8021q]vlan_dev_destruct+5c/70>                                
Trace; c022c82e <netdev_finish_unregister+8e/a0>                                
Trace; c022c9a8 <unregister_netdevice+168/220>                                  
Trace; c48c820c <[8021q]unregister_802_1Q_vlan_dev+7c/b0>                       
Trace; c48c827a <[8021q]unregister_802_1Q_vlan_device+3a/80>                    
Trace; c48c886a <[8021q]vlan_ioctl_handler+13a/160>                             
Trace; c0259766 <inet_ioctl+186/1f0>                                            
Trace; c0224d1e <sock_ioctl+1e/30>                                              
Trace; c013b936 <sys_ioctl+176/190>                                             
Trace; c0106f0a <system_call+32/38>                                             
Code;  c0127ee2 <kmem_extra_free_checks+82/a0>                                  
00000000 <_EIP>:                                                                
Code;  c0127ee2 <kmem_extra_free_checks+82/a0>   <=====                         
   0:   0f 0b                     ud2a      <=====                              
Code;  c0127ee4 <kmem_extra_free_checks+84/a0>                                  
   2:   5a                        popl   %edx                                   
Code;  c0127ee4 <kmem_extra_free_checks+84/a0>                                  
   3:   59                        popl   %ecx                                   
Code;  c0127ee6 <kmem_extra_free_checks+86/a0>                                  
   4:   8b 5c 9d 18               movl   0x18(%ebp,%ebx,4),%ebx                 
Code;  c0127eea <kmem_extra_free_checks+8a/a0>                                  
   8:   83 fb ff                  cmpl   $0xffffffff,%ebx                       
Code;  c0127eec <kmem_extra_free_checks+8c/a0>                                  
   b:   75 e0                     jne    ffffffed <_EIP+0xffffffed> c0127ece <k>
Code;  c0127eee <kmem_extra_free_checks+8e/a0>                                  
   d:   5b                        popl   %ebx                                   
Code;  c0127ef0 <kmem_extra_free_checks+90/a0>                                  
   e:   31 c0                     xorl   %eax,%eax                              
Code;  c0127ef2 <kmem_extra_free_checks+92/a0>                                  
  10:   5e                        popl   %esi                                   
Code;  c0127ef2 <kmem_extra_free_checks+92/a0>                                  
  11:   5f                        popl   %edi                                   
Code;  c0127ef4 <kmem_extra_free_checks+94/a0>                                  
  12:   5d                        popl   %ebp                                   
Code;  c0127ef4 <kmem_extra_free_checks+94/a0>                                  
  13:   c3                        ret