StacktraceTop: ?? () g_type_class_meta_marshal (closure=0xb76ff128, g_closure_invoke (closure=0xb76ff128, return_value=0x0, signal_emit_unlocked_R (node=0xb76e2700, detail=0, g_signal_emit_valist (instance=0xb050ec10, signal_id=18,
StacktraceTop: class_meta_ marshal (closure= 0xb76ff128, 0xb76ff128, return_value=0x0, emit_unlocked_ R (node=0xb76e2700, detail=0, emit_valist (instance= 0xb050ec10, signal_id=18,
?? ()
g_type_
g_closure_invoke (closure=
signal_
g_signal_