This happens to me more or less daily (but not on every screen unlock) on Ubuntu 12.10 with gdm in place of lightdm and gnome-shell 3.6.1-0ubuntu1.1.
My bug seems to be #1032309 (according to DuplicateOf/KnownReport fields apport shows me), but it appears to be private. I've installed -dbg packages for all the libraries mentioned in the stack trace, so here's my Stacktrace.txt I extracted from the /var/crash/ file (attached). It shows the crash happening inside on_get_unix_user_finished in act-user-manager.c:1028 in libaccountservice.so.0 -- that information was missing in the original Stacktrace.txt attached to this bug (likely because of the "outdated debug symbol package for libaccountsservice0" mentioned in RetraceOutdatedPackages.txt). ** Attachment added: "stack trace with more debug symbols" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1028149/+attachment/3446768/+files/Stacktrace.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1028149 Title: gnome-shell crashed with SIGSEGV in g_cancellable_is_cancelled() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1028149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
