rv = mmap (base, alloc, PROT_READ | PROT_WRITE, mmap_flags_huge, -1, 0);
/* fallback - maybe we are still able to allocate normal pages */
- if (rv == MAP_FAILED)
+ if (rv == MAP_FAILED || mlock (base, alloc) != 0)
rv = mmap (base, alloc, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
if (rv == MAP_FAILED)