[Pkg-alsa-devel] Bug#657538: libxcb1: breaks alsamixer

Mario 'BitKoenig' Holbe Mario.Holbe at TU-Ilmenau.DE
Fri Jan 27 00:16:09 UTC 2012


On Fri, Jan 27, 2012 at 12:22:28AM +0100, Cyril Brulebois wrote:
> Julien Cristau <jcristau at debian.org> (27/01/2012):
> > Core was generated by `alsamixer'.
> > Program terminated with signal 11, Segmentation fault.
> > #0  0x00007f96c1c34fd0 in snd_mixer_class_unregister ()
> >    from /usr/lib/x86_64-linux-gnu/libasound.so.2
> > (gdb) where
> > #0  0x00007f96c1c34fd0 in snd_mixer_class_unregister ()
> >    from /usr/lib/x86_64-linux-gnu/libasound.so.2
> > #1  0x00007f96c1c350cd in snd_mixer_close ()
> >    from /usr/lib/x86_64-linux-gnu/libasound.so.2
> > #2  0x0000000000409a0a in ?? ()
> > #3  0x00007f96bf6fccb6 in xcb_disconnect (c=0x25fb8d0)
> >     at ../../src/xcb_conn.c:307
> 
> In the new libxcb version, xcb_disconnect calls shutdown() on a socket
> (http://pubs.opengroup.org/onlinepubs/000095399/functions/shutdown.html
> or man 2 shutdown), but alsa-utils exposes such a function. ??? kaboom.
> 
> Reassigning to alsa-utils, which needs to stop using already-taken
> names. Julien: thanks for the quick investigation.

Googling around a little showed up RedHat seems to have had this issue
as well: https://bugzilla.redhat.com/show_bug.cgi?id=731381
... and fixed it with a patch from ALSA-git:
http://git.alsa-project.org/?p=alsa-utils.git;a=commitdiff;h=4c09aaa5c13c2260fea57a89c47f88252da8a692


Thanks Julien and Cyril
   Mario
-- 
Il semble que la perfection soit atteinte non quand il n'y a plus rien à
ajouter, mais quand il n'y a plus rien à retrancher.
             -- Antoine de Saint-Exupéry: Terre des Hommes, III: L'Avion
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