VM_MAP_PINSYSCALL_ONCE
p->p_vmspace->vm_map.flags |= VM_MAP_PINSYSCALL_ONCE;
VM_MAP_PINSYSCALL_ONCE);
new_map->flags |= old_map->flags & VM_MAP_PINSYSCALL_ONCE;
pr->ps_vmspace->vm_map.flags |= VM_MAP_PINSYSCALL_ONCE;
if (map_flags & VM_MAP_PINSYSCALL_ONCE)