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.
But dunno where to look at from this point :/
I upload these new inputs on the tracker.
Best-
Nicolas
> On Mon, 9 Mar 2009, Takashi Iwai wrote:
>
>> At Sun, 8 Mar 2009 16:11:45 -0000 (GMT),
>> Nicolas.Castagne@xxxxxxx 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@xxxxxxxx>
> Linux Kernel Sound Maintainer
> ALSA Project, Red Hat, Inc.
>
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> Alsa-devel mailing list
> Alsa-devel@xxxxxxxxxxxxxxxx
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
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