[pulseaudio-tickets] [PulseAudio] #431: module-alsa-(sink|source) eats all CPU (100%)

[PulseAudio]

#431: module-alsa-(sink|source) eats all CPU (100%)
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  Reporter:  verem          |       Owner:  lennart 
      Type:  defect         |      Status:  new     
  Priority:  high           |   Milestone:          
 Component:  module-alsa-*  |    Severity:  normal  
Resolution:                 |    Keywords:  100% CPU
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Comment (by verem):

 Replying to [comment:3 lennart]:
 > aplay doesn't use poll() on the fds in question. PA makes use of a much
 larger set of ALSA API functions than aplay. If something works in aplay
 it doesn't mean the driver works completely correctly.
 i just tested agains test/pcm.c (http://git.alsa-project.org/?p=alsa-
 lib.git;a=blob_plain;f=test/pcm.c;hb=HEAD) in different modes:

 ./pcm -m write

 ./pcm -m write_and_poll

 ./pcm -m async

 no problems at all, i hear a tone, CPU load approx 4% on PII266Mhz.

 could you post modified test/pcm.c exaclty with same method used in $subj
 to check your idea?

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Ticket URL: <http://www.pulseaudio.org/ticket/431#comment:4>
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