DEATH_REAP        511 include/linux/tracehook.h 		return task->ptrace ? SIGCHLD : DEATH_REAP;
DEATH_REAP        949 kernel/exit.c  	tsk->exit_state = signal == DEATH_REAP ? EXIT_DEAD : EXIT_ZOMBIE;
DEATH_REAP        962 kernel/exit.c  	if (signal == DEATH_REAP)