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) | \