SIG_KERNEL_STOP_MASK  417 include/linux/signal.h 	(((sig) < SIGRTMIN) && siginmask(sig, SIG_KERNEL_STOP_MASK))
SIG_KERNEL_STOP_MASK  424 include/linux/signal.h 	(!siginmask(signr, SIG_KERNEL_IGNORE_MASK|SIG_KERNEL_STOP_MASK) && \