oops 2.5.46 snd_timer_free
This happened after I run rmmod the second time: it segfaulted and the system locked up after about one second.
(missing do_select symbol is my fault)
$ ksymoops --vmlinux=/usr/src/linux-2.5.46/vmlinux --ksyms=/var/log/ksymoops/20021105181356.ksyms --no-lsmod --system-map=/usr/src/linux-2.5.46/System.map --object=/lib/modules/2.5.46/ < /tmp/oops
ksymoops 2.4.6 on i686 2.4.19-rc1. Options used
-v /usr/src/linux-2.5.46/vmlinux (specified)
-k /var/log/ksymoops/20021105181356.ksyms (specified)
-L (specified)
-o /lib/modules/2.5.46/ (specified)
-m /usr/src/linux-2.5.46/System.map (specified)Warning (compare_maps): ksyms_base symbol do_select_R__ver_do_select not found in vmlinux. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol page_states__per_cpu_R__ver_page_states__per_cpu not found in vmlinux. Ignoring ksyms_base entry
Nov 5 18:13:56 wonderland kernel: Unable to handle kernel paging request at virtual address e10e1130 Nov 5 18:13:56 wonderland kernel: e10e1130 Nov 5 18:13:56 wonderland kernel: *pde = 1f7e8067 Nov 5 18:13:56 wonderland kernel: Oops: 0000 Nov 5 18:13:56 wonderland kernel: CPU: 0 Nov 5 18:13:56 wonderland kernel: EIP: 0060:[<e10e1130>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Nov 5 18:13:56 wonderland kernel: EFLAGS: 00010286 Nov 5 18:13:56 wonderland kernel: eax: e10e1130 ebx: df73bec0 ecx: e10d56d8 edx: e10d56c4 Nov 5 18:13:56 wonderland kernel: esi: df73bfa0 edi: df73bec0 ebp: e10d56d8 esp: d0beff60 Nov 5 18:13:56 wonderland kernel: ds: 0068 es: 0068 ss: 0068 Nov 5 18:13:56 wonderland kernel: Stack: e10d2e72 df73bec0 e10d56d8 e10d3053 df73bec0 df73bc98 e10d2000 e10c9000 Nov 5 18:13:56 wonderland kernel: e10d2000 e10d402b df73bec0 d0bee000 c01196e7 d0bee000 e10d2000 e10c9000 Nov 5 18:13:56 wonderland kernel: 00000001 c0118b98 e10d2000 00000001 d0bee000 00000061 bfffe838 bfffe838 Nov 5 18:13:56 wonderland kernel: Call Trace: Nov 5 18:13:56 wonderland kernel: [<e10d2e72>] snd_timer_free+0x12/0x30 [snd-timer] Nov 5 18:13:56 wonderland kernel: [<e10d56d8>] register_mutex+0x0/0x14 [snd-timer] Nov 5 18:13:56 wonderland kernel: [<e10d3053>] snd_timer_unregister+0x93/0xa0 [snd-timer] Nov 5 18:13:56 wonderland kernel: [<e10d402b>] cleanup_module+0x2b/0x65 [snd-timer] Nov 5 18:13:56 wonderland kernel: [<c01196e7>] free_module+0x17/0xc0 Nov 5 18:13:56 wonderland kernel: [<c0118b98>] sys_delete_module+0x1e8/0x280 Nov 5 18:13:56 wonderland kernel: [<c010897b>] syscall_call+0x7/0xb Nov 5 18:13:56 wonderland kernel: Code: Bad EIP value.
Quoted 10 lines
Quoted 10 lines
EIP;
e10e1130<[snd].bss.end+19d2d/33c5d> <=====eax;
e10e1130<[snd].bss.end+19d2d/33c5d>
ebx;df73bec0<_end+1f32b8c8/20438a68>
ecx;e10d56d8<[snd].bss.end+e2d5/33c5d>
edx;e10d56c4<[snd].bss.end+e2c1/33c5d>
esi;df73bfa0<_end+1f32b9a8/20438a68>
edi;df73bec0<_end+1f32b8c8/20438a68>
ebp;e10d56d8<[snd].bss.end+e2d5/33c5d>
esp;d0beff60<_end+107df968/20438a68>
Trace; e10d2e72 <[snd].bss.end+ba6f/33c5d>
Trace; e10d56d8 <[snd].bss.end+e2d5/33c5d>
Trace; e10d3053 <[snd].bss.end+bc50/33c5d>
Trace; e10d402b <[snd].bss.end+cc28/33c5d>
Trace; c01196e7 <free_module+17/c0>
Trace; c0118b98 <sys_delete_module+1e8/280>
Trace; c010897b <syscall_call+7/b>
2 warnings issued. Results may not be reliable.
Signature · 2 lines
ciao, Marco