[ALSA - driver 0001730]: Unplug/replug of USB audio device causes snd_usb_audio and/or snd_pcm usage count to stick at 1 => no sound

[ALSA - driver 0001730]: Unplug/replug of USB audio device causes snd_usb_audio and/or snd_pcm usage count to stick at 1 => no sound

[bugtrack]

The following issue has been SUBMITTED.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1730> 
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Reported By:                stuge
Assigned To:                
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Project:                    ALSA - driver
Issue ID:                   1730
Category:                   CORE - pcm
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Distribution:               Gentoo Linux
Kernel Version:             2.6.15
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Date Submitted:             01-10-2006 09:25 CET
Last Modified:              01-10-2006 09:25 CET
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Summary:                    Unplug/replug of USB audio device causes
snd_usb_audio and/or snd_pcm usage count to stick at 1 => no sound
Description: 
Actually I'm using 1.0.11rc2 drivers, utils, libs and headers.
Filed under CORE/pcm as per crimsun's suggestion in #alsa.

I had this issue also with Gentoo 1.0.10-r1 but then I got an oops and a
double exception that looked pretty nasty. After updating to 1.0.11rc2 I
don't get the oops but still get the bug.

The USB device is a self-made TI PCM2902 reference design.

Sometimes I have to unplug/replug the device twice to tickle the bug,
sometimes just once is enough.

Kernel error message:
ALSA
/var/tmp/portage/alsa-driver-1.0.11_rc2/work/alsa-driver-1.0.11rc2/acore/timer.c:876:
timer 0xf7fa4200 is busy?

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Issue History
Date Modified  Username       Field                    Change              
======================================================================
01-10-06 09:25 stuge          New Issue                                    
01-10-06 09:25 stuge          Distribution              => Gentoo Linux    
01-10-06 09:25 stuge          Kernel Version            => 2.6.15          
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