I got a symbolic trace out of all the threads. It seems to be a dbus lock between usermetrics and networkmanager bits.
We suspect a relation to QTBUG https://bugreports.qt.io/browse/QTBUG-44836. ** Attachment added: "gdb.txt" https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1421009/+attachment/4336015/+files/gdb.txt ** Changed in: unity8 (Ubuntu) Status: Confirmed => Triaged ** Changed in: unity8 (Ubuntu) Importance: Undecided => High ** Changed in: unity8 (Ubuntu) Assignee: (unassigned) => Michał Sawicz (saviq) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1421009 Title: unity8 sometimes hangs on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1421009/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
