g_type_check_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
?? () from /usr/lib/x86_64-linux-gnu/libdbus-glib-1.so.2
g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0