linux-kernel - Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?

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Message-Id: <200707192034.35885.vda.linux@googlemail.com>
Date:	Thu, 19 Jul 2007 20:34:35 +0100
From:	Denis Vlasenko <vda.linux@...glemail.com>
To:	Bodo Eggert <7eggert@....de>
Cc:	Jesper Juhl <jesper.juhl@...il.com>,
	Ray Lee <ray-lk@...rabbit.org>,
	Rene Herman <rene.herman@...il.com>,
	Matt Mackall <mpm@...enic.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	William Lee Irwin III <wli@...omorphy.com>,
	David Chinner <dgc@....com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?

On Tuesday 17 July 2007 00:42, Bodo Eggert wrote:
> > Please note that I was not trying to remove the 8K stack option right
> > now - heck, I didn't even add anything to feature-removal-schedule.txt
> > - all I wanted to accomplish with the patch that started this threas
> > was;  a) indicate that the 4K option is no longer a debug thing  and
> 
> Very ACK.
> 
> > b) make 4K stacks the default option in vanilla kernel.org kernels as
> > a gentle nudge towards getting people to start fixing the code paths
> > that are not 4K stack safe.
> 
> That's the big NACK. It's OK for MM, where things are supposed to be in a 
> not well-tested state, but for running possibly mission-critical systems,
> you should take no risk.

Mission-critical machines are not supposed to have kernel configured
with incompetent/careless sysadmin who didn't think about
config choices he made at kernel build time.
--
vda
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