SIGSTOP           188 include/linux/ptrace.h 			sigaddset(&child->pending.signal, SIGSTOP);
SIGSTOP           392 include/linux/signal.h 	rt_sigmask(SIGKILL)   |  rt_sigmask(SIGSTOP))
SIGSTOP           395 include/linux/signal.h 	rt_sigmask(SIGSTOP)   |  rt_sigmask(SIGTSTP)   | \