KFS_SEL
movw $KFS_SEL, %cx; \
return (KFS_SEL);
load_segment_registers((KCS_SEL | SEL_KPL), KFS_SEL, KGS_SEL, KDS_SEL);
load_segment_registers(KCS_SEL, KFS_SEL, KGS_SEL, KDS_SEL);
__set_fs(KFS_SEL);