NBPML5
sva = rounddown2(sva, NBPML5);
sva += NBPML5;
(u_long)NDMPML5E * NBPML5 / 1024 / 1024 / 1024);
Maxmem = atop(NDMPML5E * NBPML5);
lm_ents, NBPML5); i++) {
va_next = (sva + NBPML5) & ~PML5MASK;
#define PML5MASK (NBPML5-1)