Oops in bttv (Linux 2.6.10-rc2-bk3)
From: Gregor Jasny
Date: Wed Nov 24 2004 - 11:09:57 EST
Hi list,
My machine oopsed during an VIDIOCMCAPTURE or an VIDIOCSYNC ioctl.
If you need more information please contact me.
Regards,
-G. Jasny
ksymoops 2.4.9 on i686 2.6.10-rc2-bk3. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.10-rc2-bk3/ (default)
-m /boot/System.map-2.6.10-rc2-bk3 (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 (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel paging request at virtual address 00001e00
f08fe594
*pde = 00000000
Oops: 0002 [#1]
CPU: 0
EIP: 0060:[<f08fe594>] Not tainted VLI
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010092 (2.6.10-rc2-bk3)
eax: d601e924 ebx: 00001e00 ecx: ed6d1080 edx: ed6d10e4
esi: d601e4c4 edi: ed6d1080 ebp: f0919520 esp: de1d1c58
ds: 007b es: 007b ss: 0068
Stack: 00000246 00000000 f08ffc12 d601e400 ed6d1080 f0909b34 00000160 00000120
00000003 d601e400 ed6d1080 000191f0 ef394500 c03981a0 de1d1cb8 c0110d8f
ef394500 00000000 724ff65c 0647ce17 a5d2c4b2 000230c2 00000001 df20e500
Call Trace:
[<f08ffc12>] bttv_do_ioctl+0x49c/0x17c0 [bttv]
[<c0110d8f>] recalc_task_prio+0x93/0x188
[<c01114d9>] scheduler_tick+0x163/0x439
[<c011bb3e>] update_process_times+0x46/0x52
[<c0110d8f>] recalc_task_prio+0x93/0x188
[<c0110d8f>] recalc_task_prio+0x93/0x188
[<c0110ee8>] activate_task+0x64/0x77
[<c01117f9>] __wake_up_common+0x38/0x57
[<c01e746d>] n_tty_receive_buf+0x163/0xe41
[<c012fad3>] buffered_rmqueue+0xbf/0x14e
[<c012fd2b>] __alloc_pages+0x1c9/0x35b
[<c01e9baf>] pty_write+0x67/0x6b
[<c01e6237>] tty_default_put_char+0x2b/0x2f
[<c01e6ad1>] opost+0x9a/0x1a4
[<c01b9f3c>] copy_from_user+0x42/0x6e
[<f0819328>] video_usercopy+0x7b/0x135 [videodev]
[<c01e3b39>] tty_write+0x20e/0x260
[<c01e8ba6>] write_chan+0x0/0x20d
[<c0110d8f>] recalc_task_prio+0x93/0x188
[<f0900f36>] bttv_ioctl+0x0/0x61 [bttv]
[<f0900f74>] bttv_ioctl+0x3e/0x61 [bttv]
[<f08ff776>] bttv_do_ioctl+0x0/0x17c0 [bttv]
[<c0155fc0>] sys_ioctl+0xb7/0x203
[<c0102deb>] syscall_call+0x7/0xb
Code: 24 04 8b 44 24 0c 8b 80 c8 00 00 00 8b 4c 24 10 8b 30 8d 51 64 c7 41 20 02 00 00 00 8d 86 60 04 00 00 8b 58 04 89 41 64 89 50 04 <89> 13 89 5a 04 8b8e 7c 04 00 00 85 c9 74 0b 8b 1c 24 8b 74 24
>>EIP; f08fe594 <pg0+3054b594/3fc4b400> <=====
>>eax; d601e924 <pg0+15c6b924/3fc4b400>
>>ecx; ed6d1080 <pg0+2d31e080/3fc4b400>
>>edx; ed6d10e4 <pg0+2d31e0e4/3fc4b400>
>>esi; d601e4c4 <pg0+15c6b4c4/3fc4b400>
>>edi; ed6d1080 <pg0+2d31e080/3fc4b400>
>>ebp; f0919520 <pg0+30566520/3fc4b400>
>>esp; de1d1c58 <pg0+1de1ec58/3fc4b400>
Trace; f08ffc12 <pg0+3054cc12/3fc4b400>
Trace; c0110d8f <recalc_task_prio+93/188>
Trace; c01114d9 <scheduler_tick+163/439>
Trace; c011bb3e <update_process_times+46/52>
Trace; c0110d8f <recalc_task_prio+93/188>
Trace; c0110d8f <recalc_task_prio+93/188>
Trace; c0110ee8 <activate_task+64/77>
Trace; c01117f9 <__wake_up_common+38/57>
Trace; c01e746d <n_tty_receive_buf+163/e41>
Trace; c012fad3 <buffered_rmqueue+bf/14e>
Trace; c012fd2b <__alloc_pages+1c9/35b>
Trace; c01e9baf <pty_write+67/6b>
Trace; c01e6237 <tty_default_put_char+2b/2f>
Trace; c01e6ad1 <opost+9a/1a4>
Trace; c01b9f3c <copy_from_user+42/6e>
Trace; f0819328 <pg0+30466328/3fc4b400>
Trace; c01e3b39 <tty_write+20e/260>
Trace; c01e8ba6 <write_chan+0/20d>
Trace; c0110d8f <recalc_task_prio+93/188>
Trace; f0900f36 <pg0+3054df36/3fc4b400>
Trace; f0900f74 <pg0+3054df74/3fc4b400>
Trace; f08ff776 <pg0+3054c776/3fc4b400>
Trace; c0155fc0 <sys_ioctl+b7/203>
Trace; c0102deb <syscall_call+7/b>
This architecture has variable length instructions, decoding before eip
is unreliable, take these instructions with a pinch of salt.
Code; f08fe569 <pg0+3054b569/3fc4b400>
00000000 <_EIP>:
Code; f08fe569 <pg0+3054b569/3fc4b400>
0: 24 04 and $0x4,%al
Code; f08fe56b <pg0+3054b56b/3fc4b400>
2: 8b 44 24 0c mov 0xc(%esp),%eax
Code; f08fe56f <pg0+3054b56f/3fc4b400>
6: 8b 80 c8 00 00 00 mov 0xc8(%eax),%eax
Code; f08fe575 <pg0+3054b575/3fc4b400>
c: 8b 4c 24 10 mov 0x10(%esp),%ecx
Code; f08fe579 <pg0+3054b579/3fc4b400>
10: 8b 30 mov (%eax),%esi
Code; f08fe57b <pg0+3054b57b/3fc4b400>
12: 8d 51 64 lea 0x64(%ecx),%edx
Code; f08fe57e <pg0+3054b57e/3fc4b400>
15: c7 41 20 02 00 00 00 movl $0x2,0x20(%ecx)
Code; f08fe585 <pg0+3054b585/3fc4b400>
1c: 8d 86 60 04 00 00 lea 0x460(%esi),%eax
Code; f08fe58b <pg0+3054b58b/3fc4b400>
22: 8b 58 04 mov 0x4(%eax),%ebx
Code; f08fe58e <pg0+3054b58e/3fc4b400>
25: 89 41 64 mov %eax,0x64(%ecx)
Code; f08fe591 <pg0+3054b591/3fc4b400>
28: 89 50 04 mov %edx,0x4(%eax)
This decode from eip onwards should be reliable
Code; f08fe594 <pg0+3054b594/3fc4b400>
00000000 <_EIP>:
Code; f08fe594 <pg0+3054b594/3fc4b400> <=====
0: 89 13 mov %edx,(%ebx) <=====
Code; f08fe596 <pg0+3054b596/3fc4b400>
2: 89 5a 04 mov %ebx,0x4(%edx)
Code; f08fe599 <pg0+3054b599/3fc4b400>
5: 8e 8b 7c 04 00 00 movl 0x47c(%ebx),%cs
Code; f08fe59f <pg0+3054b59f/3fc4b400>
b: 85 c9 test %ecx,%ecx
Code; f08fe5a1 <pg0+3054b5a1/3fc4b400>
d: 74 0b je 1a <_EIP+0x1a>
Code; f08fe5a3 <pg0+3054b5a3/3fc4b400>
f: 8b 1c 24 mov (%esp),%ebx
Code; f08fe5a6 <pg0+3054b5a6/3fc4b400>
12: 8b .byte 0x8b
Code; f08fe5a7 <pg0+3054b5a7/3fc4b400>
13: 74 24 je 39 <_EIP+0x39>
1 warning and 1 error issued. Results may not be reliable.