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From: Florian Weimer <fw@deneb.enyo.de>
Subject: Re: lockfiles & fork()
Date: Sat, 28 Oct 2006 15:30:27 +0200
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References: <Pine.LNX.4.63.0610280319250.26682@wbgn013.biozentrum.uni-wuerzburg.de>
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	(Johannes Schindelin's message of "Sat, 28 Oct 2006 03:21:38 +0200
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* Johannes Schindelin:

> when you setup a lockfile, and then fork(), you could easily end up with 
> atexit() kicking in to remove the lockfile, before the main process has a 
> chance to commit. (Yes, I need to hold the lock long before the fork()).
>
> Any ideas how to solve the problem?

I think you should call _exit in the child instead of exit.