From: John Lindgren <john.lindgren@tds.net>
To: alsa-devel@alsa-project.org
Subject: snd_pcm_drop causing lockup with DMix
Date: Sun, 28 Feb 2010 10:37:21 -0500 [thread overview]
Message-ID: <1267371441.14748.22.camel@satellite> (raw)
Hi,
A couple of weeks ago I reported a rather serious bug #4914 that can
cause a multi-threaded using ALSA to lock up so that it can only be
ended with SIGKILL.
I maintain the ALSA output part of Audacious, and I need to be able to
play audio in one thread of the program and then signal that thread to
stop from another. The way to do this in ALSA, if I understand
correctly, is to interrupt the thread that is sending audio with a call
to snd_pcm_drop. But using DMix makes the first thread hang up in a
snd_pcm_wait call with a timeout of -1.
Is anyone working on this bug? Is there any more help I can provide?
John Lindgren
next reply other threads:[~2010-02-28 15:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-28 15:37 John Lindgren [this message]
2010-02-28 16:22 ` snd_pcm_drop causing lockup with DMix Jaroslav Kysela
2010-02-28 17:15 ` John Lindgren
2010-03-01 6:53 ` Jaroslav Kysela
2010-03-01 23:52 ` John Lindgren
2010-03-02 13:25 ` Jaroslav Kysela
2010-03-03 0:24 ` John Lindgren
2010-03-03 10:01 ` Jaroslav Kysela
2010-03-03 12:28 ` John Lindgren
2010-03-03 12:59 ` Jaroslav Kysela
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