#12400 NORM 13.1.0: XO-4 etoys audio is bad

[Zarro Boogs per Child]

#12400: XO-4 etoys audio is bad
--------------------------------------+-------------------------------------
           Reporter:  dsd             |       Owner:  saadia       
               Type:  defect          |      Status:  new          
           Priority:  normal          |   Milestone:  13.1.0       
          Component:  etoys-activity  |     Version:  not specified
         Resolution:                  |    Keywords:               
        Next_action:  diagnose        |    Verified:  0            
Deployment_affected:                  |   Blockedby:               
           Blocking:                  |  
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Comment(by dsd):

 Last update for today. Squeak calls snd_pcm_writei with 512 frames at a
 time. It succeeds twice (writing 512 frames each time to the device)
 before it starts returning -11. The updated atest (attached) demonstrates
 this.

 When combined with Saadia's debug messages, something interesting becomes
 apparent:

 {{{
 sound_Start OK
 writei ret 512
 writei ret 512
 [  406.857050] .. CALL 3 snd_pcm_release_substream
 writei ret -11
 snd_pcm_writei returned -11
 }}}

 That snd_pcm_release_substream() doesn't seem like it should be there.

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Ticket URL: <http://dev.laptop.org/ticket/12400#comment:5>
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