FIRST_USER_PGDIR_ENT
memset(pgdir_virt + FIRST_USER_PGDIR_ENT, 0,
memset(page_hole_pgdir + FIRST_USER_PGDIR_ENT, 0, sizeof(page_directory_entry) * NUM_USER_PGDIR_ENTS);
memset(fPageHolePageDir + FIRST_USER_PGDIR_ENT, 0,
memset(pgdir_virt + FIRST_USER_PGDIR_ENT, 0,
memset(pgdir_virt + FIRST_USER_PGDIR_ENT, 0,
memset(fPageHolePageDir + FIRST_USER_PGDIR_ENT, 0,
memset(pgdir_virt + FIRST_USER_PGDIR_ENT, 0,