ksymoops 2.4.4 on i686 2.4.18-3. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.18-3/ (default) -m /boot/System.map-2.4.18-3 (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. Error (expand_objects): cannot stat(/lib/ext3.o) for ext3 Error (expand_objects): cannot stat(/lib/jbd.o) for jbd Error (pclose_local): find_objects pclose failed 0x100 Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01b5a40, System.map says c0155ec0. Ignoring ksyms_base entry Warning (map_ksym_to_module): cannot match loaded module ext3 to a unique module object. Trace may not be reliable. Jan 27 05:49:05 buttercup kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Jan 27 05:49:05 buttercup kernel: c013fced Jan 27 05:49:05 buttercup kernel: *pde = 00000000 Jan 27 05:49:05 buttercup kernel: Oops: 0000 Jan 27 05:49:05 buttercup kernel: CPU: 0 Jan 27 05:49:05 buttercup kernel: EIP: 0010:[] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Jan 27 05:49:05 buttercup kernel: EFLAGS: 00010246 Jan 27 05:49:05 buttercup kernel: eax: 00000000 ebx: c5d46610 ecx: 00000006 edx: 00000006 Jan 27 05:49:05 buttercup kernel: esi: 00000000 edi: 00000002 ebp: cd4eff7c esp: cd4eff24 Jan 27 05:49:05 buttercup kernel: ds: 0018 es: 0018 ss: 0018 Jan 27 05:49:05 buttercup kernel: Process lpd (pid: 19650, stackpage=cd4ef000) Jan 27 05:49:05 buttercup kernel: Stack: c5d46610 ffffffff 00000000 00000006 c62922e0 cd4ee56c bfffeaf0 cd4eff70 Jan 27 05:49:05 buttercup kernel: cd4effa4 00000000 c0120460 0000000a cd4eff90 00000542 00000542 00000001 Jan 27 05:49:05 buttercup kernel: c1bd9000 c0135746 c1bd9000 00000543 00000180 cd4eff7c c62922e0 c132e490 Jan 27 05:49:05 buttercup kernel: Call Trace: [] sys_rt_sigaction [kernel] 0xa8 Jan 27 05:49:05 buttercup kernel: [] filp_open [kernel] 0x32 Jan 27 05:49:05 buttercup kernel: [] sys_open [kernel] 0x33 Jan 27 05:49:05 buttercup kernel: [] system_call [kernel] 0x33 Jan 27 05:49:06 buttercup kernel: Code: ff 10 5a 59 31 c0 e9 f0 00 00 00 ff 74 24 08 e8 df 6b 00 00 >>EIP; c013fced <===== Trace; c0120460 Trace; c0135746 Trace; c0135a4f Trace; c01085f7 Code; c013fced 00000000 <_EIP>: Code; c013fced <===== 0: ff 10 call *(%eax) <===== Code; c013fcef 2: 5a pop %edx Code; c013fcf0 3: 59 pop %ecx Code; c013fcf1 4: 31 c0 xor %eax,%eax Code; c013fcf3 6: e9 f0 00 00 00 jmp fb <_EIP+0xfb> c013fde8 Code; c013fcf8 b: ff 74 24 08 pushl 0x8(%esp,1) Code; c013fcfc f: e8 df 6b 00 00 call 6bf3 <_EIP+0x6bf3> c01468e0 Jan 27 05:49:26 buttercup kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 Jan 27 05:49:26 buttercup kernel: c013fced Jan 27 05:49:26 buttercup kernel: *pde = 00000000 Jan 27 05:49:26 buttercup kernel: Oops: 0000 Jan 27 05:49:26 buttercup kernel: CPU: 0 Jan 27 05:49:26 buttercup kernel: EIP: 0010:[] Not tainted Jan 27 05:49:26 buttercup kernel: EFLAGS: 00210246 Jan 27 05:49:26 buttercup kernel: eax: 00000000 ebx: cd460df0 ecx: 00000006 edx: 00000006 Jan 27 05:49:26 buttercup kernel: esi: 00000000 edi: 00000002 ebp: ca025f7c esp: ca025f24 Jan 27 05:49:26 buttercup kernel: ds: 0018 es: 0018 ss: 0018 Jan 27 05:49:26 buttercup kernel: Process su (pid: 19681, stackpage=ca025000) Jan 27 05:49:26 buttercup kernel: Stack: cd460df0 ffffffff 00000000 00000006 ce329200 c6a44050 00200246 00001000 Jan 27 05:49:26 buttercup kernel: fffffff4 c1557000 401843c2 c013e65c c1557009 00000002 40181ea5 401843d7 Jan 27 05:49:26 buttercup kernel: c1557000 c0135746 c1557000 00000003 00000000 ca025f7c ce329200 c132e490 Jan 27 05:49:26 buttercup kernel: Call Trace: [] getname [kernel] 0x60 Jan 27 05:49:26 buttercup kernel: [] filp_open [kernel] 0x32 Jan 27 05:49:26 buttercup kernel: [] getname [kernel] 0x60 Jan 27 05:49:26 buttercup kernel: [] sys_open [kernel] 0x33 Warning (Oops_read): Code line not seen, dumping what data is available >>EIP; c013fced <===== Trace; c013e65c Trace; c0135746 Trace; c013e65c Trace; c0135a4f Jan 27 05:52:31 buttercup kernel: ac97_codec: AC97 Audio codec, id: 0x5649:0x4161 (Unknown) 4 warnings and 3 errors issued. Results may not be reliable.