MADV_NORMAL MADV_RANDOM MADV_SEQUENTIAL MADV_WILLNEED MADV_DONTNEED MADV_REMOVE MADV_DONTFORK MADV_DOFORK MADV_HWPOISON MADV_SOFT_OFFLINE MADV_MERGEABLE MADV_UNMERGEABLE MADV_HUGEPAGE MADV_NOHUGEPAGE MADV_DONTDUMP MADV_DODUMP