[alsa-devel] Crash when snd_pcm_open is called from a thread with "pulse" as playback

Takashi Iwai tiwai at suse.de
Mon Mar 9 14:12:35 CET 2009

At Wed, 4 Mar 2009 08:20:49 -0000 (GMT),
Nicolas.Castagne at imag.fr wrote:
> Hi folks,
> I hope I post on the correct mail list...
> I've read somewhere that I should report bugs on a list, and not only on
> the Tracker. That's the aim of this message.
> On all my Fedora 10 machines,
> whenever
>        snd_pcm_open
> has been called from a pthread using "pulse" as playback
> then the program crashes when the thread terminates.
> Crash in __nptl_deallocate_tsd
> However, AFAIK, one should be able to call snd_pcm_open from a thread.
> The full bug report is there, with a very simple sample code :
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4426

This appears to be a problem with Portaudio, right?
My rough guess is something handling pthread in portaudio conflicting
with pulseaudio, or any bug in the resource handling in portaudio...


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