USERSPACETOP       84 kern/arch/mips/include/vm.h #define USERSTACK     USERSPACETOP
USERSPACETOP      132 kern/vm/copyinout.c 	if (bot >= USERSPACETOP) {
USERSPACETOP      137 kern/vm/copyinout.c 	if (top >= USERSPACETOP) {
USERSPACETOP      139 kern/vm/copyinout.c 		*stoplen = USERSPACETOP - bot;