StacktraceTop:IA__g_type_check_instance_cast (type_instance=0x40594000, onPortTested (core=0x8876858, isOpen=0, vdata=0x9c04460) IA__g_cclosure_marshal_VOID__BOOLEAN (closure=0x9c03720, IA__g_closure_invoke (closure=0x9c03720, return_value=0x0, signal_emit_unlocked_R (node=<value optimized out>,
StacktraceTop: IA__g_type_ check_instance_ cast (type_instance= 0x40594000, marshal_ VOID__BOOLEAN (closure=0x9c03720, invoke (closure=0x9c03720, return_value=0x0, emit_unlocked_ R (node=<value optimized out>,
onPortTested (core=0x8876858, isOpen=0, vdata=0x9c04460)
IA__g_cclosure_
IA__g_closure_
signal_