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

[Raymond <rayau@netvigator.com>]

If there are 16 instances of aplay playing mono stream.

What error will be returned by snd_pcm_open() for the 17th instance of 
aplay ?



alsa-kernel/pci/au88x0/au8810.h

#define NR_ADB   0x10

alsa-kernel/pci/au88x0/au8830.h

#define NR_ADB   0x20


alsa-kernel/pci/au88x0/au88x0.c

	if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
		snd_card_free(card);
		return err;
	}



bugtrack@alsa-project.org wrote:
> 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:              04-12-2005 20:51 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" ...
> ======================================================================
> 
> ----------------------------------------------------------------------
>  alien999999999 - 04-12-05 20:48 
> ----------------------------------------------------------------------
> i forgot to note that i have the mdk 10.1 x86_64 distro and my version has
> a few 64bit fixes to get past kernel hangs and kernel oopses
> 
> ----------------------------------------------------------------------
>  alien999999999 - 04-12-05 20:51 
> ----------------------------------------------------------------------
> i have attached the changed files (since i don't have a CVS version of alsa
> to diff against)
> 
> these files are located in the alsa-driver-1.0.8/alsa-kernel/pci/au88x0/
> path
> 
> 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                          
> ======================================================================
> 
> 
> 


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