* [PCM OSS] via82xx soundcard Oops
@ 2003-10-16 8:31 bert hubert
2003-10-16 8:44 ` Muli Ben-Yehuda
0 siblings, 1 reply; 3+ messages in thread
From: bert hubert @ 2003-10-16 8:31 UTC (permalink / raw)
To: linux-via, linux-kernel
Via82xx soundcard, on running wavesurfer
(http://www.speech.kth.se/wavesurfer/download.html - excellent), I often get
an oops in snd_pcm_format_set_silence, especially with short segments of
sound:
Unable to handle kernel paging request at virtual address e08ca000
printing eip: e0923dff
*pde = 1fed3067
*pte = 00000000
Oops: 0002 [#1]
CPU: 0
EIP: 0060:[<e0923dff>] Not tainted
EFLAGS: 00010217
EIP is at snd_pcm_format_set_silence+0x9f/0x1b0 [snd_pcm]
eax: 00000000 ebx: e08c8000 ecx: 000004e2 edx: 0000338a
esi: 00000002 edi: e08ca000 ebp: 000019c5 esp: d4f9df28
ds: 007b es: 007b ss: 0068
Process wish8.4 (pid: 10341, threadinfo=d4f9c000 task=c0f1d880)
Stack: 00000002 e09aa589 000019c5 de226000 dfccf080 de018ce0 e09aabd9 00000002
e08c8000 000019c5 c44d3180 de018ce0 ddff2a00 c44d3180 e09abfd2 de018ce0
40567aa0 c44d3180 dfff41c0 c897ec0c c9c4f380 c015240b c897ec0c c44d3180
Call Trace:
[<e09aa589>] snd_pcm_oss_write1+0x39/0x1f0 [snd_pcm_oss]
[<e09aabd9>] snd_pcm_oss_sync+0x69/0x160 [snd_pcm_oss]
[<e09abfd2>] snd_pcm_oss_release+0x22/0xb0 [snd_pcm_oss]
[<c015240b>] __fput+0xeb/0x100
[<c0150b19>] filp_close+0x59/0x90
[<c0150ba0>] sys_close+0x50/0x60
[<c010b18b>] syscall_call+0x7/0xb
I added a printk to snd_pcm_format_set_silence, it outputs the following
during general playback:
printk("format: %d, %d\n", snd_pcm_format_width(format), samples);
format: 16, 432
format: 16, 4864
format: 16, 16
format: 16, 3344
format: 16, 1520
However, here is the entire log of a short transmit:
>Oct 16 10:24:37 desktop kernel: format: 8, 49200
Oct 16 10:24:37 desktop kernel: format: 16, 32768
Oct 16 10:24:37 desktop kernel: format: 16, 4358
Oct 16 10:24:37 desktop kernel: format: 16, 4864
Oct 16 10:24:37 desktop kernel: format: 16, 16
Oct 16 10:24:37 desktop kernel: format: 16, 5216
Oct 16 10:24:37 desktop kernel: format: 16, 16
Oct 16 10:24:37 desktop kernel: format: 16, 5616
Oct 16 10:24:37 desktop kernel: format: 16, 16
Oct 16 10:24:37 desktop kernel: format: 16, 12
Oct 16 10:24:37 desktop kernel: format: 16, 4
Oct 16 10:24:37 desktop kernel: format: 16, 16
Oct 16 10:24:37 desktop last message repeated 5 times
Oct 16 10:24:37 desktop kernel: format: 16, 8
Oct 16 10:24:37 desktop kernel: format: 16, 8
Oct 16 10:24:37 desktop kernel: format: 16, 16
Oct 16 10:24:37 desktop kernel: format: 16, 6676
Oct 16 10:24:37 desktop kernel: Unable to handle kernel paging request
at virtual address e09ae000
Especially the '8' seems interesting.
Module Size Used by
nls_iso8859_1 3968 0
snd_pcm_oss 47652 2
snd_mixer_oss 16896 1 snd_pcm_oss
snd_via82xx 21472 2
snd_pcm 84132 2 snd_pcm_oss,snd_via82xx
snd_timer 20868 1 snd_pcm
snd_ac97_codec 51588 1 snd_via82xx
snd_page_alloc 9348 2 snd_via82xx,snd_pcm
snd_mpu401_uart 5888 1 snd_via82xx
snd_rawmidi 19488 1 snd_mpu401_uart
snd 42724 8
snd_pcm_oss,snd_mixer_oss,snd_via82xx,snd_pcm,snd_timer,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi
I also have weird other things with this driver, a sudden speedup of
playback for a few seconds, where the sound is interleaved with rasping
noises. This speedup stops after a few seconds, and also if I press pause
and play in xmms.
This speedup almost always happens a few seconds after starting playback of
an mp3 with cmms.
--
http://www.PowerDNS.com Open source, database driven DNS Software
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PCM OSS] via82xx soundcard Oops
2003-10-16 8:31 [PCM OSS] via82xx soundcard Oops bert hubert
@ 2003-10-16 8:44 ` Muli Ben-Yehuda
2003-10-16 9:31 ` bert hubert
0 siblings, 1 reply; 3+ messages in thread
From: Muli Ben-Yehuda @ 2003-10-16 8:44 UTC (permalink / raw)
To: bert hubert, linux-kernel
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On Thu, Oct 16, 2003 at 10:31:03AM +0200, bert hubert wrote:
> Via82xx soundcard, on running wavesurfer
> (http://www.speech.kth.se/wavesurfer/download.html - excellent), I often get
> an oops in snd_pcm_format_set_silence, especially with short segments of
> sound:
Fixed in ALSA CVS and in Linus's bitkeeper tree. Will show up in
-test8.
Cheers,
Muli
--
Muli Ben-Yehuda
http://www.mulix.org
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PCM OSS] via82xx soundcard Oops
2003-10-16 8:44 ` Muli Ben-Yehuda
@ 2003-10-16 9:31 ` bert hubert
0 siblings, 0 replies; 3+ messages in thread
From: bert hubert @ 2003-10-16 9:31 UTC (permalink / raw)
To: Muli Ben-Yehuda; +Cc: linux-kernel
On Thu, Oct 16, 2003 at 10:44:05AM +0200, Muli Ben-Yehuda wrote:
> On Thu, Oct 16, 2003 at 10:31:03AM +0200, bert hubert wrote:
>
> > Via82xx soundcard, on running wavesurfer
> > (http://www.speech.kth.se/wavesurfer/download.html - excellent), I often get
> > an oops in snd_pcm_format_set_silence, especially with short segments of
> > sound:
>
> Fixed in ALSA CVS and in Linus's bitkeeper tree. Will show up in
> -test8.
I can confirm that test7-bk7 fixes this problem thanks Muli!
The weird occasional speedup is still there, trying to figure out what that
might be.
--
http://www.PowerDNS.com Open source, database driven DNS Software
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
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2003-10-16 8:44 ` Muli Ben-Yehuda
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