gnome-volume-control crashed with SIGABRT in __kernel_vsyscall()

[sygoletto]

gnome-volume-control crashed while testing speakers.

I have the gdm welcome sound and login sound but after that, unable to play any sound (gstreamer, aplay, ...)

the volume control crashes while testing speakers

ubuntu@ubuntu:~$ aplay -l
**** Liste des Périphériques Matériels PLAYBACK ****
carte 0: SI7012 [SiS SI7012], périphérique 0: Intel ICH [SiS SI7012]
  Sous-périphériques: 1/1
  Sous-périphérique #0: subdevice #0

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: gnome-media 2.32.0-0ubuntu7
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
Architecture: i386
CrashCounter: 1
Date: Wed Aug 3 09:35:12 2011
ExecutablePath: /usr/bin/gnome-volume-control
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: gnome-volume-control
ProcEnviron:
 SHELL=/bin/bash
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR:en
Signal: 6
SourcePackage: gnome-media
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 g_assertion_message () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: gnome-volume-control crashed with SIGABRT in __kernel_vsyscall()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare