I just experienced that bug too. Apport redirected me here. Since I don't run compiz-fusion, I updated the bug description and remove the proposal for a link between the start of compiz-fusion and this crash.
** Description changed: Binary package hint: nspluginwrapper - This was automatically generated by apport. This may have begun - happening after I enabled compiz-fusion in system > appearances. But I - do not claim there is any relationship. + This was automatically generated by apport. I'm running Ubuntu Intrepid Gnome Edition. Linux leibniz 2.6.27-2-generic #1 SMP Thu Aug 28 17:18:43 UTC 2008 x86_64 GNU/Linux ProblemType: Crash Architecture: amd64 CrashCounter: 1 DistroRelease: Ubuntu 8.10 ExecutablePath: /usr/lib/nspluginwrapper/i386/linux/npviewer.bin Package: nspluginwrapper 1.1.0-0ubuntu2 ProcAttrCurrent: unconfined ProcCmdline: /usr/lib/nspluginwrapper/i386/linux/npviewer.bin --plugin /usr/lib/flashplugin-nonfree/libflashplayer.so --connection /org/wrapper/NSPlugins/libflashplayer.so/30365-3 ProcEnviron: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games LANG=en_US.UTF-8 SHELL=/bin/bash Signal: 11 SourcePackage: nspluginwrapper StacktraceTop: pthread_mutex_lock () from /lib32/libpthread.so.0 ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so Title: npviewer.bin crashed with SIGSEGV in pthread_mutex_lock() Uname: Linux 2.6.27-2-generic x86_64 UserGroups: adm admin cdrom dialout fuse lpadmin plugdev sambashare -- npviewer.bin crashed with SIGSEGV in pthread_mutex_lock() https://bugs.launchpad.net/bugs/266944 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs