[ALSA - driver 0001046]: after some time, the alsa system is not accessible

[bugtrack@alsa-project.org]

The following issue has been CLOSED
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1046> 
======================================================================
Reported By:                wilsotc
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   1046
Category:                   PCI - cs46xx
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
Distribution:               gentoo
Kernel Version:             2.6.11-r5
Resolution:                 open
Fixed in Version:           
======================================================================
Date Submitted:             04-12-2005 16:05 CEST
Last Modified:              12-31-2005 00:16 CET
======================================================================
Summary:                    after some time, the alsa system is not accessible
Description: 
If I remote SSH an aplay command, the problem can occur.

This command:
ssh USERNAME@host.com 'aplay /usr/kde/3.3/share/sounds/KDE_Notify.wav'

from a remote system can cause the problem to occur.  The command will
produce audio for weeks, then subsequent commands will cause an error that
looks like this:

ALSA lib confmisc.c:550:(snd_determine_driver) could not open control for
card 0
ALSA lib conf.c:3463:(_snd_config_evaluate) function snd_func_card_driver
returned error: Permission denied
ALSA lib confmisc.c:387:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3463:(_snd_config_evaluate) function snd_func_concat
returned error: Permission denied
ALSA lib confmisc.c:945:(snd_func_refer) error evaluating name
ALSA lib conf.c:3463:(_snd_config_evaluate) function snd_func_refer
returned error: Permission denied
ALSA lib conf.c:3932:(snd_config_expand) Evaluate error: Permission
denied
ALSA lib pcm.c:2068:(snd_pcm_open_noupdate) Unknown PCM default

the user is a member of the audio group as evidenced by the many
successful audio commands prior to the error.
======================================================================

----------------------------------------------------------------------
 wilsotc - 05-03-05 22:01 
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I have to run the hourly crontab job:
0 * * * *       chmod g+rw /dev/snd/*

To change my audio rights from this:
calvin root # ls -la /dev/snd/
total 0
drwxrwxr-x  1 root audio       0 Dec 31  1969 .
drwxr-xr-x  1 root root        0 Dec 31  1969 ..
crw-------  1 root audio 116,  0 Dec 31  1969 controlC0
crw-------  1 root audio 116,  8 Dec 31  1969 midiC0D0
crw-------  1 root audio 116, 24 Dec 31  1969 pcmC0D0c
crw-------  1 root audio 116, 16 Dec 31  1969 pcmC0D0p
crw-------  1 root audio 116, 17 Dec 31  1969 pcmC0D1p
crw-------  1 root audio 116, 18 Dec 31  1969 pcmC0D2p
crw-------  1 root audio 116,  1 Dec 31  1969 seq
crw-------  1 root audio 116, 33 Dec 31  1969 timer

back to this:
calvin root # ls -la /dev/snd/
total 0
drwxrwxr-x  1 root audio       0 Dec 31  1969 .
drwxr-xr-x  1 root root        0 Dec 31  1969 ..
crw-rw----  1 root audio 116,  0 Dec 31  1969 controlC0
crw-rw----  1 root audio 116,  8 Dec 31  1969 midiC0D0
crw-rw----  1 root audio 116, 24 Dec 31  1969 pcmC0D0c
crw-rw----  1 root audio 116, 16 Dec 31  1969 pcmC0D0p
crw-rw----  1 root audio 116, 17 Dec 31  1969 pcmC0D1p
crw-rw----  1 root audio 116, 18 Dec 31  1969 pcmC0D2p
crw-rw----  1 root audio 116,  1 Dec 31  1969 seq
crw-rw----  1 root audio 116, 33 Dec 31  1969 timer

I am using ALSA 1.0.8 on Gentoo Linux with Kernel 2.6.10-r6
*  media-sound/alsa-headers
      Latest version available: 1.0.8
      Latest version installed: 1.0.8
      Size of downloaded files: 1,881 kB
      Homepage:    http://www.alsa-project.org/
      Description: Header files for Advanced Linux Sound Architecture
kernel modules
*  media-sound/alsa-utils
      Latest version available: 1.0.8
      Latest version installed: 1.0.8
      Size of downloaded files: 219 kB
      Homepage:    http://www.alsa-project.org/
      Description: Advanced Linux Sound Architecture Utils (alsactl,
alsamixer, etc.)
*  media-sound/alsa-driver
      Latest version available: 1.0.8
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 1,881 kB
      Homepage:    http://www.alsa-project.org/
      Description: Advanced Linux Sound Architecture kernel modules
*  media-libs/alsa-lib
      Latest version available: 1.0.8
      Latest version installed: 1.0.8
      Size of downloaded files: 666 kB
      Homepage:    http://www.alsa-project.org/
      Description: Advanced Linux Sound Architecture Library

The rights seem to disappear randomly when I run an aplay command via SSH
from another host.

I'm using devfsd not udev

----------------------------------------------------------------------
 rlrevell - 12-31-05 00:16 
----------------------------------------------------------------------
devfs has been removed from the kernel

Issue History
Date Modified  Username       Field                    Change              
======================================================================
04-12-05 16:05 wilsotc        New Issue                                    
04-12-05 16:05 wilsotc        Distribution              => gentoo          
04-12-05 16:05 wilsotc        Kernel Version            => 2.6.11-r5       
04-12-05 16:25 tiwai          Note Added: 0004446                          
05-03-05 22:01 wilsotc        Note Added: 0004585                          
12-31-05 00:16 rlrevell       Status                   new => closed       
12-31-05 00:16 rlrevell       Note Added: 0007312                          
======================================================================




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