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

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Message-ID: <20070719102359.0e6a2e17@the-village.bc.nu>
Date:	Thu, 19 Jul 2007 10:23:59 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andrea Arcangeli <andrea@...e.de>
Cc:	Matt Mackall <mpm@...enic.com>,
	Rene Herman <rene.herman@...il.com>,
	Ray Lee <ray-lk@...rabbit.org>, Bodo Eggert <7eggert@....de>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Jesper Juhl <jesper.juhl@...il.com>,
	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 Thu, 19 Jul 2007 03:33:58 +0200
Andrea Arcangeli <andrea@...e.de> wrote:

> > 8K stacks without IRQ stacks are not "safer" so I don't understand your
> > comment ?
> 
> Ouch, see the reports about 4k stack crashes. I agree they're not
> safe w/o irq stacks (like on x86-64), but they're generally safer.

Still don't follow. How is "exceeds stack space but less likely to be
noticed" safer.

Alan
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