compiz crashed with SIGSEGV when switching between windows mit alt-tab

[Mathias]

Hi,

this crash happens to me several times a day.
Most the time when I am switch through running applications with alt-tab and I think its somehow related to maximized windows.
$ lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10

$ apt-cache policy compiz
compiz:
  Installed: 1:0.9.6+bzr20110929-0ubuntu6
  Candidate: 1:0.9.6+bzr20110929-0ubuntu6.1
  Version table:
     1:0.9.6+bzr20110929-0ubuntu6.1 0
        500 http://ubuntu.inode.at/ubuntu/ oneiric-updates/main amd64 Packages
 *** 1:0.9.6+bzr20110929-0ubuntu6 0
        100 /var/lib/dpkg/status
     1:0.9.6+bzr20110929-0ubuntu3 0
        500 http://ubuntu.inode.at/ubuntu/ oneiric/main amd64 Packages

$ apt-cache policy unity
unity:
  Installed: 4.28.0-0ubuntu2
  Candidate: 4.28.0-0ubuntu2
  Version table:
 *** 4.28.0-0ubuntu2 0
        500 http://ubuntu.inode.at/ubuntu/ oneiric-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     4.22.0-0ubuntu3 0
        500 http://ubuntu.inode.at/ubuntu/ oneiric/main amd64 Packages

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.28.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
Uname: Linux 3.0.0-15-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CrashCounter: 1
Date: Tue Feb 14 14:39:50 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcCmdline: compiz
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::switcher::SwitcherController::CompareSwitcherItemsPriority(AbstractLauncherIcon*, AbstractLauncherIcon*) () from /usr/lib/compiz/libunityshell.so
 void std::__insertion_sort<__gnu_cxx::__normal_iterator<AbstractLauncherIcon**, std::vector<AbstractLauncherIcon*, std::allocator<AbstractLauncherIcon*> > >, bool (*)(AbstractLauncherIcon*, AbstractLauncherIcon*)>(__gnu_cxx::__normal_iterator<AbstractLauncherIcon**, std::vector<AbstractLauncherIcon*, std::allocator<AbstractLauncherIcon*> > >, __gnu_cxx::__normal_iterator<AbstractLauncherIcon**, std::vector<AbstractLauncherIcon*, std::allocator<AbstractLauncherIcon*> > >, bool (*)(AbstractLauncherIcon*, AbstractLauncherIcon*)) () from /usr/lib/compiz/libunityshell.so
 unity::switcher::SwitcherController::Show(unity::switcher::SwitcherController::ShowMode, unity::switcher::SwitcherController::SortMode, bool, std::vector<AbstractLauncherIcon*, std::allocator<AbstractLauncherIcon*> >) () from /usr/lib/compiz/libunityshell.so
 UnityScreen::altTabInitiateCommon(CompAction*, unsigned int, std::vector<CompOption, std::allocator<CompOption> >&) () from /usr/lib/compiz/libunityshell.so
 UnityScreen::altTabForwardInitiate(CompAction*, unsigned int, std::vector<CompOption, std::allocator<CompOption> >&) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in unity::switcher::SwitcherController::CompareSwitcherItemsPriority()
UpgradeStatus: Upgraded to oneiric on 2011-12-12 (63 days ago)
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse libvirtd lpadmin netdev plugdev sambashare tape vboxusers video wireshark

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.