otherwise cause no action: SIGUSR1, SIGUSR2, SIGPIPE, SIGALRM,
SIGCHLD, SIGCONT, SIGURG, SIGXCPU, SIGXFSZ, SIGVTALRM, SIGWINCH,
SIGIO, SIGPWR, SIGINFO, SIGTHR, SIGWAITING, SIGLWP, SIGFREEZE,
SIGTHAW, SIGLOST, SIGXRES, SIGJVM1, SIGJVM2, and any real time signals
used on the system. Note that not all of these signals are available
on all systems.

	SIGBUS     = Signal(0xa)
	SIGCANCEL  = Signal(0x24)
	SIGCHLD    = Signal(0x12)
	SIGCLD     = Signal(0x12)
	SIGCONT    = Signal(0x19)
	SIGEMT     = Signal(0x7)
	SIGFPE     = Signal(0x8)
	SIGFREEZE  = Signal(0x22)
	SIGHUP     = Signal(0x1)
	SIGILL     = Signal(0x4)
	SIGINT     = Signal(0x2)
	SIGIO      = Signal(0x16)
	SIGIOT     = Signal(0x6)
	SIGJVM1    = Signal(0x27)
	SIGJVM2    = Signal(0x28)