linux-kernel - Re: x86: 4kstacks default

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Message-ID: <20080420085104.GG1595@cs181133002.pp.htv.fi>
Date:	Sun, 20 Apr 2008 11:51:04 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Shawn Bohrer <shawn.bohrer@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: x86: 4kstacks default

On Sun, Apr 20, 2008 at 09:06:23AM +0100, Alan Cox wrote:
> > The stack problems in the kernel tend to not be in arch code, and if 
> > we don't get i386 to always run with 4k stacks there's no chance that 
> > it will ever work reliably on other architectures.
> 
> Not really the case - embedded tends not to use deep stacks of drivers.

Something like nfsd-over-xfs-over-raid is (or was) the most common 
problem - and this or similar stackings might be used in NAS devices.

> Alan

cu
Adrian

-- 

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       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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