MADV_NORMAL
nflags |= MADV_NORMAL;
&pg, &npages, 0, VM_PROT_READ, MADV_NORMAL, PGO_LOCKED);
&pg, &npages, 0, VM_PROT_READ, MADV_NORMAL, PGO_SYNCIO);
case MADV_NORMAL:
case MADV_NORMAL: