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The rest of the backtrace tells a more interesting tale; it looks like maybe gtk-logout-helper was smashing the stack in a loop. gtk-logout-helper.c was removed in the 13.10 release, so It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running apport-collect <bug #> and any other logs that are relevant for this particular issue. #669 0x0000000000406da8 in consolekit_fallback (action=action@entry=LOGOUT_DIALOG_TYPE_RESTART) at gtk-logout-helper.c:91 error = 0x2e7ba50 result = <optimized out> #670 0x0000000000406da8 in consolekit_fallback (action=action@entry=LOGOUT_DIALOG_TYPE_RESTART) at gtk-logout-helper.c:91 error = 0x2e7b8c0 result = <optimized out> #671 0x0000000000406da8 in consolekit_fallback (action=action@entry=LOGOUT_DIALOG_TYPE_RESTART) at gtk-logout-helper.c:91 error = 0x2e7bb00 result = <optimized out> ** Changed in: indicator-session (Ubuntu) Status: New => Incomplete ** Information type changed from Private to Public -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1156036 Title: gtk-logout-helper crashed with SIGSEGV in __find_specmb() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-session/+bug/1156036/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs