2.5.51 oops saa7134

Looks like that the ALSA modules have not been loaded so the TV card mixer become /dev/mixer instead of the usual /dev/mixer1 (yes, I have the mixer_nr=1 option in modprobe.conf but it's ignored like other saa7134 options). Then mplayer tried to use it and something unexpected happened:

ksymoops 2.4.6 on i686 2.5.51. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.5.51/ (default)
-m /boot/System.map-2.5.51 (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

Dec 13 21:04:20 wonderland kernel: kernel BUG at drivers/media/video/saa7134/saa7134-core.c:287!
Dec 13 21:04:20 wonderland kernel: invalid operand: 0000
Dec 13 21:04:20 wonderland kernel: CPU:    0
Dec 13 21:04:20 wonderland kernel: EIP:    0060:[<e08452d0>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Dec 13 21:04:20 wonderland kernel: EFLAGS: 00010246
Dec 13 21:04:20 wonderland kernel: eax: dff8c1d0   ebx: dff8c1d0   ecx: d5c06800   edx: 00000000
Dec 13 21:04:20 wonderland kernel: esi: 00000000   edi: dff8c000   ebp: cb7fdee4   esp: cb7fded4
Dec 13 21:04:20 wonderland kernel: ds: 0068   es: 0068   ss: 0068
Dec 13 21:04:20 wonderland kernel: Stack: dff8c1d0 00000000 dff8c000 dff8c000 cb7fdf0c e084672c c15ccc00 dff8c1d0 
Dec 13 21:04:20 wonderland kernel:        d5c06800 00000040 00000000 dff8c000 dff8c184 00000000 cb7fdf24 e08472e5 
Dec 13 21:04:20 wonderland kernel:        dff8c000 00000000 dc747740 00000000 cb7fdf64 c0148196 dc747740 00000000 
Dec 13 21:04:20 wonderland kernel: Call Trace:
Dec 13 21:04:20 wonderland kernel:  [<e084672c>] dsp_rec_start+0x4c/0x260 [saa7134]
Dec 13 21:04:20 wonderland kernel:  [<e08472e5>] dsp_poll+0x55/0x80 [saa7134]
Dec 13 21:04:20 wonderland kernel:  [<c0148196>] do_select+0xe6/0x1e0
Dec 13 21:04:20 wonderland kernel:  [<c0147f50>] __pollwait+0x0/0xa0
Dec 13 21:04:20 wonderland kernel:  [<c01485cc>] sys_select+0x30c/0x430
Dec 13 21:04:20 wonderland kernel:  [<c0108aa3>] syscall_call+0x7/0xb
Dec 13 21:04:20 wonderland kernel: Code: 0f 0b 1f 01 40 d3 84 e0 8b 50 04 8b 45 18 8d 14 82 31 c0 3b 

Trace; e084672c <END_OF_CODE+204c04e4/????>
Trace; e08472e5 <END_OF_CODE+204c109d/????>
Trace; c0148196 <do_select+e6/1e0>
Trace; c0147f50 <__pollwait+0/a0>
Trace; c01485cc <sys_select+30c/430>
Trace; c0108aa3 <syscall_call+7/b>

Code; e08452d0 <END_OF_CODE+204bf088/????>
00000000 <_EIP>:
Code; e08452d0 <END_OF_CODE+204bf088/????> <=====
0: 0f 0b ud2a <=====
Code; e08452d2 <END_OF_CODE+204bf08a/????>
2: 1f pop %ds
Code; e08452d3 <END_OF_CODE+204bf08b/????>
3: 01 40 d3 add %eax,0xffffffd3(%eax)
Code; e08452d6 <END_OF_CODE+204bf08e/????>
6: 84 e0 test %ah,%al
Code; e08452d8 <END_OF_CODE+204bf090/????>
8: 8b 50 04 mov 0x4(%eax),%edx
Code; e08452db <END_OF_CODE+204bf093/????>
b: 8b 45 18 mov 0x18(%ebp),%eax
Code; e08452de <END_OF_CODE+204bf096/????>
e: 8d 14 82 lea (%edx,%eax,4),%edx
Code; e08452e1 <END_OF_CODE+204bf099/????>
11: 31 c0 xor %eax,%eax
Code; e08452e3 <END_OF_CODE+204bf09b/????>
13: 3b 00 cmp (%eax),%eax

1 warning and 1 error issued. Results may not be reliable.

mplayer output:

Cache fill:  0,00% (0 bytes)    Detected AVI file format!
VIDEO:  [DX50]  608x320  24bpp  25,00 fps  843,9 kbps (103,0 kbyte/s)

==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 12000->176400 (96,0 kbit) Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
vo: X11 running at 1024x768 with depth 24 and 32 bpp (":0.0" => local display) Disabling DPMS
Opening video filter: [eq]
==========================================================================
Trying to force video codec driver family ffmpeg ...
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
audio_setup: driver doesn't support SNDCTL_DSP_GETOSPACE :-( Segmentation fault
[Exit 139 (SIGSEGV)]

Module                  Size  Used by
ppp_deflate             4418  0 [unsafe]
zlib_deflate           20403  1 ppp_deflate [permanent]
zlib_inflate           20547  1 ppp_deflate [permanent]
bsd_comp                4892  0 [unsafe]
af_packet              14583  2 [unsafe]
ppp_async               8524  1 [unsafe]
ppp_generic            19950  6 ppp_deflate bsd_comp ppp_async [unsafe]
slhc                    6087  1 ppp_generic
ne2k_pci                6594  1
8390                    7419  1 ne2k_pci
crc32                   1851  2 8390 [unsafe]
psmouse                 5702  0
mousedev                6627  1
saa7134                58725  1
video_buf              13505  1 saa7134 [permanent]
v4l1_compat            10519  1 saa7134 [permanent]
soundcore               5787  1 saa7134
i2c_core               19408  1 saa7134
v4l2_common             3242  1 saa7134 [permanent]
videodev                7090  1 saa7134

ciao,
Marco