I haven't seen this happening any more ever since I change the Launcher code to not trust ApplicationManager's signals blindly. Marking as fixed.
** Changed in: unity8 (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1297223 Title: unity8 crashed with SIGSEGV Status in “unity8” package in Ubuntu: Fix Released Bug description: Unity8 crashed with new scopes. random crash. ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: unity8 7.84+14.04.20140324.4-0ubuntu1 Uname: Linux 3.4.0-5-mako armv7l ApportVersion: 2.13.3-0ubuntu1 Architecture: armhf CurrentDesktop: Unity Date: Tue Mar 25 15:24:00 2014 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2014-03-25 (0 days ago) InstallationMedia: Ubuntu Trusty Tahr (development branch) - armhf (20140325) ProcCmdline: unity8 Signal: 11 SourcePackage: unity8 Stacktrace: #0 0xaa3ba828 in ?? () from /usr/lib/arm-linux-gnueabihf/unity8/qml/Unity/Launcher/libUnityLauncher-qml.so No symbol table info available. #1 0xaa3ba806 in ?? () from /usr/lib/arm-linux-gnueabihf/unity8/qml/Unity/Launcher/libUnityLauncher-qml.so No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) StacktraceTop: ?? () from /usr/lib/arm-linux-gnueabihf/unity8/qml/Unity/Launcher/libUnityLauncher-qml.so ?? () from /usr/lib/arm-linux-gnueabihf/unity8/qml/Unity/Launcher/libUnityLauncher-qml.so Title: unity8 crashed with SIGSEGV UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm autopilot cdrom dialout dip nopasswdlogin plugdev sudo tty video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1297223/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp