I think that we're going to need a valgrind log on this one. The symptom is unref'ing a NULL variant. But, the about_to_show code doesn't deal with the variants directly and the other cases are all handled cleanly. This must be happening with the callback itself, but I can't find where anyone is registering a callback for about_to_show() in the service especially.
** Changed in: indicator-sound (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/723027 Title: indicator-sound-service crashed with SIGSEGV in g_atomic_int_exchange_and_add() -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs