StacktraceTop: ?? () g_closure_invoke () ?? () from /usr/lib/libgobject-2.0.so.0 g_signal_emit_valist () g_signal_emit () from /usr/lib/libgobject-2.0.so.0
StacktraceTop: libgobject- 2.0.so. 0 emit_valist () libgobject- 2.0.so. 0
?? ()
g_closure_invoke ()
?? () from /usr/lib/
g_signal_
g_signal_emit () from /usr/lib/