It looks like the error string set by g_dbus_get_finish() is pointing to garbage. This is possibly an issue for upstream glib?
Here's the code where the error occurred: /* Callback for getting our connection to DBus */ static void bus_get_cb (GObject * object, GAsyncResult * res, gpointer user_data) { GError * error = NULL; GDBusConnection * connection = g_bus_get_finish(res, &error); if (error != NULL) { g_error("OMG! Unable to get a connection to DBus: %s", error->message); g_error_free(error); return; } And here's the backtrace, notice that args1 (which would be the error->message string for %s) is garbage: #0 g_logv (log_domain=0xebbd60 "libindicator", log_level=<optimized out>, format=0xebce88 "OMG! Unable to get a connection to DBus: %s", args1=0xbfc70bac "h\037`\b\364_8") at /build/buildd/glib2.0-2.29.90/./glib/gmessages.c:577 depth = 0 domain = 0x0 data = 0x0 log_func = 0x2d9270 <g_log_default_handler> domain_fatal_mask = <optimized out> masquerade_fatal = <optimized out> test_level = <optimized out> was_fatal = 0 was_recursion = 0 i = <optimized out> #1 0x002da1b3 in g_log (log_domain=0xebbd60 "libindicator", log_level=G_LOG_LEVEL_ERROR, format=0xebce88 "OMG! Unable to get a connection to DBus: %s") at /build/buildd/glib2.0-2.29.90/./glib/gmessages.c:591 args = 0xbfc70bac "h\037`\b\364_8" #2 0x00eba1b3 in bus_get_cb (object=0x0, res=0x85ede48, user_data=0x85edd90) at /build/buildd/libindicator-0.3.93/./libindicator/indicator-service.c:364 error = 0x85fe710 connection = 0x0 priv = <optimized out> __PRETTY_FUNCTION__ = "bus_get_cb" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/852027 Title: indicator-session-service crashed with signal 5 in bus_get_cb() To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/852027/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs