MACH_MSG_OOL_VOLATILE_DESCRIPTOR   32 src/pkg/runtime/defs_darwin_386.h 	MACH_MSG_OOL_VOLATILE_DESCRIPTOR	= 0x3,
MACH_MSG_OOL_VOLATILE_DESCRIPTOR   32 src/pkg/runtime/defs_darwin_amd64.h 	MACH_MSG_OOL_VOLATILE_DESCRIPTOR	= 0x3,