NAF_MEM_OWNER
if (nmd != NULL && !((*na)->na_flags & NAF_MEM_OWNER) &&
arg->na_flags |= NAF_MEM_OWNER;
mna->up.na_flags |= NAF_MEM_OWNER;
mna->up.na_flags |= NAF_MEM_OWNER | NAF_OFFSETS;