[ALSA - driver 0001047]: module hangs at seemingly random times

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A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1047> 
======================================================================
Reported By:                alien999999999
Assigned To:                mjander
======================================================================
Project:                    ALSA - driver
Issue ID:                   1047
Category:                   PCI - au88x0
Reproducibility:            sometimes
Severity:                   block
Priority:                   normal
Status:                     assigned
Distribution:               Mandrake
Kernel Version:             2.6.7
======================================================================
Date Submitted:             04-12-2005 20:43 CEST
Last Modified:              06-25-2006 07:04 CEST
======================================================================
Summary:                    module hangs at seemingly random times
Description: 
sometimes i start playing a song, and it starts playing a few second or so
and hangs, then i kill the application and modprobe -r all sound modules
and modprobe them again to make it work again.

BUT: sometimes not only that happens, but also when i try to kill the apps
it will not kill. when that happens, all kill, killall, top, ps aux
commands hang at the command line and cannot be killed by CTRL-C or
otherwise, i have been able to see that when i stopped my display
managener I did an lsmod and it gave something like this:

snd-pcm-oss            59752  11
snd-mixer-oss          20480  1 snd-pcm-oss
snd-au8810             43760  220
snd-ac97-codec         83408  1 snd-au8810
snd-pcm               108172  112 snd-pcm-oss,snd-au8810,snd-ac97-codec
snd-page-alloc         10384  1 snd-pcm
gameport                3840  1 snd-au8810
snd-mpu401-uart        11904  1 snd-au8810


as you can see the snd-au8810 module seem to have an impossible number of
"dependencies" (i think has to do with the number of unclosed sound-apps
trying to be played; this could be since gaim is programmed to execute an
'aplay %s')

i've had this major crash below only 3 times; and the logs didn't detect
anything specific at the time. the only thing the logs mentioned at that
time was an ntpd sync going on; so the only thing i can think of is that
at a certain moment when a sync is going on, some kind of lock is holding
cause this to happen... the only thing that i can do to fix this is
reset...

it is interesting to note that i also have an snd-emu10k1 as second card,
which never gave problems like this, and i am always able to "modprobe -r
snd-emu10k1" ...
======================================================================

----------------------------------------------------------------------
 tiwai - 04-11-06 18:54 
----------------------------------------------------------------------
That patch just fixed a wrong use of __devinit in the header file. 
__devinit was declared in header but not used in the function definition. 
__devinit must be in function definitions.  So, it was moved from header
to *.c.  That's all.

And, what is your point?  How can it be relevant with *THIS* bug report??

----------------------------------------------------------------------
 Raymond - 06-25-06 07:04 
----------------------------------------------------------------------
>> 1. ALSA has hardware mixing if the chipset/driver supports it (i know
mine 
>> does).

>> 2. OSS does not do any multiple sounds

>> so, the OSS application is continually using soundcard. and aplay plays
a 
>> short one... should it work or must aplay be denied???

The au88xx driver in sourceforge also allow two or more instances of
"mplayer -ao oss" or "play" running.

For ALSA au88x0 driver, it depends on the application,

By reducing the number of subdevice of au88x0 device 0 to 2 and have 2
stereo PCM running. (i.e. no available subdevice )

aplay *.wav
aplay: main:548: audio open error: Device or resource busy

mplayer -ao alsa=device=hw=0,0 *.wav
alsa-init: using device hw:0
alsa-lib: pcm_hw.c:1248:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed:
Device or resource busy
alsa-init: playback open error: Device or resource busy
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video
 
 
Exiting... (End of file)


mplayer -ao oss *.wav
  
[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource
busy
alsa-init: using device default
alsa-lib: pcm_hw.c:1248:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed:
Device or resource busy
alsa-init: playback open error: Device or resource busy
[AO ARTS] can't connect to aRts soundserver
[AO ESD] esd_open_sound failed: Connection reset by peer
[JACK] cannot open server
[AO SDL] Samplerate: 44100Hz Channels: Stereo Format s16le
warning: leaving MCOP Dispatcher and still 143 types alive.
[AO SDL] Unable to open audio: No available audio device
open /dev/[sound/]dsp: Device or resource busy
[OpenAL] could not open device
AO: [null] 44100Hz 2ch s16le (2 bytes per sample)

Issue History
Date Modified  Username       Field                    Change              
======================================================================
04-12-05 20:43 alien999999999 New Issue                                    
04-12-05 20:43 alien999999999 Distribution              => Mandrake        
04-12-05 20:43 alien999999999 Kernel Version            => 2.6.7           
04-12-05 20:48 alien999999999 Note Added: 0004461                          
04-12-05 20:49 alien999999999 File Added: au88x0.c                         
04-12-05 20:49 alien999999999 File Added: au88x0.h                         
04-12-05 20:50 alien999999999 File Added: au88x0_core.c                    
04-12-05 20:50 alien999999999 File Added: au88x0_mixer.c                    
04-12-05 20:51 alien999999999 Note Added: 0004462                          
08-24-05 11:13 Raymond        Note Added: 0005928                          
10-27-05 02:27 Raymond        Note Added: 0006564                          
01-03-06 04:04 Raymond        Note Added: 0007397                          
01-04-06 22:08 alien999999999 Note Added: 0007455                          
01-05-06 07:21 Raymond        Note Added: 0007462                          
01-05-06 20:32 shurick        Issue Monitored: shurick                     
01-06-06 17:17 alien999999999 Note Added: 0007488                          
01-06-06 17:33 alien999999999 File Added: alsa-cvs-2006-01-04.patch             
      
01-13-06 13:51 Raymond        Note Added: 0007639                          
01-13-06 18:18 tiwai          Note Added: 0007648                          
01-14-06 04:53 Raymond        Note Added: 0007653                          
01-14-06 05:00 Raymond        Note Edited: 0007653                         
01-17-06 12:27 Raymond        Note Added: 0007697                          
01-18-06 15:51 Raymond        Note Added: 0007710                          
01-18-06 15:52 Raymond        File Added: au88x0_codec.patch                    
01-19-06 13:51 Raymond        Note Added: 0007719                          
02-05-06 05:20 Raymond        Note Edited: 0007710                         
02-05-06 05:28 Raymond        Note Added: 0007930                          
02-13-06 16:38 Raymond        Note Deleted: 0006564                        
02-13-06 16:41 Raymond        Note Added: 0008054                          
03-01-06 07:39 Raymond        Note Added: 0008273                          
03-18-06 12:28 Raymond        Note Deleted: 0008273                        
03-20-06 17:54 Raymond        File Added: au88x0_conf.patch                    
03-21-06 02:02 Raymond        Note Added: 0008734                          
03-21-06 18:01 tiwai          Note Added: 0008754                          
03-22-06 02:05 Raymond        File Added: au88x0_mpu401.patch                   

03-22-06 02:28 Raymond        Note Added: 0008779                          
03-22-06 02:31 Raymond        Note Edited: 0008779                         
03-22-06 02:38 rlrevell       Note Added: 0008782                          
03-22-06 04:00 Raymond        Note Added: 0008836                          
03-22-06 04:09 rlrevell       Note Added: 0008839                          
03-26-06 09:55 Raymond        Note Added: 0008967                          
03-29-06 17:48 Raymond        Note Added: 0008995                          
03-31-06 06:52 Raymond        Note Edited: 0008995                         
04-02-06 07:01 Raymond        Note Edited: 0008995                         
04-10-06 16:07 Raymond        Note Added: 0009190                          
04-10-06 16:39 tiwai          Note Added: 0009192                          
04-10-06 16:43 Raymond        Note Added: 0009194                          
04-10-06 16:45 tiwai          Note Added: 0009195                          
04-10-06 19:01 Raymond        Note Added: 0009215                          
04-10-06 19:04 Raymond        Note Edited: 0009215                         
04-10-06 19:05 tiwai          Note Added: 0009216                          
04-11-06 18:36 Raymond        Note Added: 0009234                          
04-11-06 18:54 tiwai          Note Added: 0009235                          
06-25-06 07:04 Raymond        Note Added: 0010502                          
======================================================================



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