Closing Window crashes compiz

[Achim]

When i close a window by clicking the X, compiz crashes. First it flickers, next we see only the desktop wallpaper and finally the desktop comes back. Other opened apps are frozen. Sometimes i see fragments of the closed window on the desktop. Most of the time the chromium browser window. If this app is open while this crash occours it's surely frozen.
This bug occours a lot. I saw it by closing krusader, thunderbird, chromium, akregator and so on.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: libnux-1.0-0 1.14.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
AssertionMessage: *** glibc detected *** compiz: malloc(): memory corruption: 0x00007f7ba839bd00 ***
CrashCounter: 1
Date: Sun Oct 2 17:26:01 2011
ExecutablePath: /usr/bin/compiz
ProcCmdline: compiz
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: nux
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
Title: compiz assert failure: *** glibc detected *** compiz: malloc(): memory corruption: 0x00007f7ba839bd00 ***
UpgradeStatus: Upgraded to oneiric on 2011-09-30 (1 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 #863068, 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.