Re: [FFADO-devel] [FFADO] #181: ffado has concurrency issue

[FFADO <ffa...@ff...>]

#181: ffado has concurrency issue
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Reporter:  dx9s                    |         Owner:           
    Type:  bug                     |        Status:  new      
Priority:  critical                |     Milestone:  FFADO 2.0
 Version:  FFADO SVN (2.0 branch)  |    Resolution:           
Keywords:  b1484                   |   Device_name:           
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Comment (by holin):

 I think you're banging your head to the wall here. The xruns you get are
 probably caused by a few places in the kernel with long held locks (which
 will get fixed, given time), or even more likely by artifacts in
 scheduling and/or cpu cache behaviour. They will be random in nature, and
 unless you're a seasoned kernel hacker you will find a million scenarios
 that first seem to reproduce the problem, but after enough tries you find
 out that 'it wasn't *that* after all'. Anyhow, imho the only solution to
 this is moving the ffado streaming code to kernel space, which will happen
 when someone does the work, but surely not for ffado-2.0. If ffado had an
 actual concurrency issue, it would more likely be manifested as a lockup
 or a crash.

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Ticket URL: <http://subversion.ffado.org/ticket/181#comment:5>
FFADO <http://subversion.ffado.org/index.fcgi>
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