Comment 2 for bug 964137

StacktraceTop:
 device_changed (device=0x7f564d1608f0, property=0x7f564d340400 "Connected", value=0x7f564d33f9e0, user_data=0x7f564cb40680) at bluetooth-client.c:394
 marshal_dbus_message_to_g_marshaller (closure=0x7f564d0a5cb0, return_value=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=0x7fff9b0874e0, marshal_data=0x0) at dbus-gproxy.c:1734
 g_closure_invoke (closure=0x7f564d0a5cb0, return_value=0x0, n_param_values=3, param_values=0x7fff9b087590, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.22/./gobject/gclosure.c:777
 signal_emit_unlocked_R (node=<optimized out>, detail=1830, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7fff9b087590) at /build/buildd/glib2.0-2.31.22/./gobject/gsignal.c:3547
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=1830, var_args=<optimized out>) at /build/buildd/glib2.0-2.31.22/./gobject/gsignal.c:3296