You have been subscribed to a public bug: I might have been switching tabs in lyx...which is probably unrelated.
Update: after more occurrences of this, it seems this is triggered by alt-tab. ProblemType: Crash DistroRelease: Ubuntu 11.10 Package: unity 4.28.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-15.25-generic 3.0.13 Uname: Linux 3.0.0-15-generic i686 ApportVersion: 1.23-0ubuntu4 Architecture: i386 Date: Sun Jan 15 19:35:33 2012 Disassembly: => 0x0: Cannot access memory at address 0x0 ExecutablePath: /usr/bin/compiz ProcCmdline: compiz ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x0: Cannot access memory at address 0x0 PC (0x00000000) not located in a known VMA region (needed executable region)! SegvReason: executing NULL VMA 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 Title: compiz crashed with SIGSEGV in unity::switcher::SwitcherController::CompareSwitcherItemsPriority() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare ** Affects: unity Importance: Critical Status: Fix Released ** Affects: unity-distro-priority Importance: Critical Status: Fix Released ** Affects: unity (Ubuntu) Importance: Critical Status: Fix Released ** Affects: unity (Ubuntu Oneiric) Importance: Critical Status: Confirmed ** Tags: apport-crash distro-priority i386 oneiric running-unity -- compiz crashed with SIGSEGV in unity::switcher::SwitcherController::CompareSwitcherItemsPriority() https://bugs.launchpad.net/bugs/916879 You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp