metacity crashed with SIGABRT in __kernel_vsyscall()

[balo]

I started vlc with xspf playlist then metacity crashed.
i can't reproduce deliberately but it occurs 4-5 times a week.

$ apt-cache policy vlc
vlc:
  Installed: 1.1.11-2build2
  Candidate: 1.1.11-2build2
  Version table:
 *** 1.1.11-2build2 0
        500 http://archive.ubuntu.com/ubuntu/ oneiric/universe i386 Packages
        100 /var/lib/dpkg/status

i saw some incomplete tickets but with other causes.
i hope it helps.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: metacity 1:2.34.1-1ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Sat Sep 17 20:22:17 2011
ExecutablePath: /usr/bin/metacity
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: metacity
Signal: 6
SourcePackage: metacity
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 ?? ()
 ?? ()
Title: metacity crashed with SIGABRT in __kernel_vsyscall()
UpgradeStatus: Upgraded to oneiric on 2011-09-10 (7 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #848808, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.