group_stop       2821 kernel/signal.c 	int group_stop = 0;
group_stop       2854 kernel/signal.c 		group_stop = CLD_STOPPED;
group_stop       2862 kernel/signal.c 	if (unlikely(group_stop)) {
group_stop       2864 kernel/signal.c 		do_notify_parent_cldstop(tsk, false, group_stop);