ksymoops 2.3.4 on i686 2.4.4. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.4/ (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. Reading Oops report from the terminal Unable to handle kernel NULL pointer dereference at virtual address 00000000 c01114f8 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010006 eax: c4481980 ebx: 00000000 ecx: 00000000 edx: c4481984 esi: c70f9ecf edi: c5efc054 ebp: c70f9d6c esp: c70f9d50 ds: 0018 es: 0018 ss: 0018 Process studio (pid: 788, stackpage=c70f9000) Stack: c4481984 00000001 00000282 00000001 c4481980 c70f9ecf c3c47241 c4481000 c01688b3 c1227ed0 00000002 c5c0e000 00000046 00000000 c70f9d94 00000046 c5c0e000 00000001 c011b2fb c5c0e000 00000202 00000000 0011b385 0000001d Call Trace: [] [] [] [] [] [] [] [] [] [] [] [] [>EIP; c01114f8 <__wake_up+38/a0> <===== Trace; c01688b3 Trace; c011b2fb Trace; c013c346 Trace; c015b3b5 Trace; c01225bc Code; c01114f8 <__wake_up+38/a0> 00000000 <_EIP>: Code; c01114f8 <__wake_up+38/a0> <===== 0: 8b 01 mov (%ecx),%eax <===== Code; c01114fa <__wake_up+3a/a0> 2: 85 45 f0 test %eax,0xfffffff0(%ebp) Code; c01114fd <__wake_up+3d/a0> 5: 74 4f je 56 <_EIP+0x56> c011154e <__wake_up+8e/a0> Code; c01114ff <__wake_up+3f/a0> 7: 31 c0 xor %eax,%eax Code; c0111501 <__wake_up+41/a0> 9: 9c pushf Code; c0111502 <__wake_up+42/a0> a: 5e pop %esi Code; c0111503 <__wake_up+43/a0> b: fa cli Code; c0111504 <__wake_up+44/a0> c: c7 01 00 00 00 00 movl $0x0,(%ecx) Code; c011150a <__wake_up+4a/a0> 12: 8b 51 00 mov 0x0(%ecx),%edx