linux-kernel - Re: [patch 7/8] fdmap v2

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Message-Id: <1181550292.11365.8.camel@frg-rhel40-em64t-04>
Date:	Mon, 11 Jun 2007 10:24:52 +0200
From:	Xavier Bestel <xavier.bestel@...e.fr>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Ulrich Drepper <drepper@...hat.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Theodore Tso <tytso@....edu>,
	Eric Dumazet <dada1@...mosbay.com>,
	Kyle Moffett <mrmacman_g4@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [patch 7/8] fdmap v2 - implement sys_socket2

On Fri, 2007-06-08 at 20:30 +0100, Alan Cox wrote:
> > To avoid exactly the kind of problem we have now in future: programs
> > relying on specific patterns.
> 
> Which you seem to think is a bad thing, yet is actually a very good thing
> because it means that crashes are repeatable and problems are debuggable
> from end user reports.

You can have both.
Look at malloc(): when you write your program you can't really guess
which address will be returned by a malloc() call, but you know that if
you launch it twice and if it has the same input, malloc()'s behavior is
repeatable so it's debuggable.

	Xav


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