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Aucbvax.2742 fa.unix-wizards utzoo!decvax!ucbvax!unix-wizards Tue Aug 18 14:16:42 1981 Re: using signal(2) with locks >From Dave-Yost@RAND-UNIX Tue Aug 18 14:09:23 1981

Here's the race condition. Consider processes A & B: A: determine that lock file is dead B: determine that lock file is dead A: unlink lock file A: link to lock file B: unlink lock file B: link to lock file

Now each of them thinks he has a valid lock.

--dave

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