if (ret) {
		fprintf(stderr, "runtime/cgo: mach_port_insert_right failed: %d\n", ret);
		abort();
	}

	ret = thread_set_exception_ports(
		mach_thread_self(),
		EXC_MASK_BAD_ACCESS,
		port,
		EXCEPTION_DEFAULT,
		THREAD_STATE_NONE);
	if (ret) {
		fprintf(stderr, "runtime/cgo: thread_set_exception_ports failed: %d\n", ret);
		abort();
	}

	ret = pthread_mutex_lock(&mach_exception_handler_port_set_mu);