On Mon, 9 Mar 2009, Takashi Iwai wrote:
At Sun, 8 Mar 2009 16:11:45 -0000 (GMT), Nicolas.Castagne@imag.fr wrote:
Hi folks,
I'd need the help of some alsa developpers regarding the bug report : https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4426
We've made a few progress on it, but we are stuck again.
Basically, it seems that calling snd_config_update_free_global() from a pthread causes the program to crash when the thread terminates.
Questions are:
Should config_update_free_global NOT be called from a thread ?
In other words, is the following code valid (though dumb :=)) ? Or is there some reason for it to crash ?
Hm, I don't see any reason, and I cannot reproduce a crash on my machine...
I would suggest to comment out code from snd_config_update_free_global(). Try to comment out snd_dlobj_cache_cleanup() at first. You may compile alsa-lib from the tar ball on www.alsa-project.org and use LD_PRELOAD=alsa-lib/src/.libs/libasound.so.2.0.0 <your_program> for tests.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.