ksymoops 2.3.4 on i686 2.4.0-test2-ac2. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.0-test2-ac2/ (default) -m /usr/src/linux/System.map (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:[] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010282 eax: 0000001d ebx: cc8dc360 ecx: 00000016 edx: cccee2a0 esi: c13b9614 edi: c13ba1a8 ebp: cc8dc360 esp: ccab7ee4 ds: 0018 es: 0018 ss: 0018 Process umount (pid: 287, stackpage=ccab7000) Stack: c01de524 c01de87a 000005b3 c13ba1a8 c13b9614 00000000 cc929444 00000000 c0126143 c13ba1a8 cc929380 ccab7f44 cda2a840 00000000 c0146192 cc929444 ccab7f44 ccab7f44 c01462ab ccab7f44 cda2a800 cda2a800 00000000 08054100 Call Trace: [] [] [] [] [] [] [] [] [] [] [] Code: 0f 0b 83 c4 0c 8b 43 28 89 44 24 10 53 e8 df fe ff ff 83 c4 >>EIP; c01346df <===== Trace; c01de524 Trace; c01de87a Trace; c0126143 Trace; c0146192 Trace; c01462ab Trace; c0137a8f Trace; c0137e51 Trace; c0137f83 Trace; c012574b Trace; c0138000 Trace; c010ae80 Code; c01346df 00000000 <_EIP>: Code; c01346df <===== 0: 0f 0b ud2a <===== Code; c01346e1 2: 83 c4 0c add $0xc,%esp Code; c01346e4 5: 8b 43 28 mov 0x28(%ebx),%eax Code; c01346e7 8: 89 44 24 10 mov %eax,0x10(%esp,1) Code; c01346eb c: 53 push %ebx Code; c01346ec d: e8 df fe ff ff call fffffef1 <_EIP+0xfffffef1> c01345d0 Code; c01346f1 12: 83 c4 00 add $0x0,%esp 1 warning issued. Results may not be reliable.