Seems to me, it's a lot tougher to make all of this stuff always work right in the face of buggy or hostile programs. If you have a super-serious hardcore owne

Seems to me, it's a lot tougher to make all of this stuff always work right in the face of buggy or hostile programs. If you have a super-serious hardcore owner lock on a file that only the opening process can release, what happens when a buggy or hostile program locks a file and never unlocks it, even after exiting?