On Mon, 9 Mar 2009 Nicolas.Castagne@imag.fr wrote:
Hi Jaroslav, Takashi and all,
thx for you answers.
Takashi :
Hm, I don't see any reason, and I cannot reproduce a crash on my machine...
I can reproduce it on my three Fedora10 machines, using 2 hardware.
Jaroslav
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.
Done.
First, no more bug when commenting snd_dlobj_cache_cleanup
Also, no more bug when commenting dlclose in snd_dlclose called from snd_dlobj_cache_cleanup
The only dynamically loaded lib is _snd_pcm_pulse_open
Seems once again that pulse is involved somewhere.
Maybe. I guess it's a glibc bug which might be Fedora specific. Could you try glibc from different distribution (or maybe rawhide) using LD_PRELOAD hack if this bug can be reproduced? Just unpack glibc rpm with rpm2cpio and use libc.so, libdl.so and libphread.so files for LD_PRELOAD.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.