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Date: Thu, 19 Jul 2007 03:56:55 +0200
From: Rene Herman <rene.herman@gmail.com>
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To: Matt Mackall <mpm@selenic.com>
CC: Andrea Arcangeli <andrea@suse.de>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Ray Lee <ray-lk@madrabbit.org>, Bodo Eggert <7eggert@gmx.de>,
       Jeremy Fitzhardinge <jeremy@goop.org>,
       Jesper Juhl <jesper.juhl@gmail.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       William Lee Irwin III <wli@holomorphy.com>, David Chinner <dgc@sgi.com>,
       Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?
References: <Pine.LNX.4.58.0707161523500.25779@be1.lrz> <469BF104.1040703@gmail.com> <2c0942db0707161537o2852a308s26e79235e897e282@mail.gmail.com> <469BF768.6040200@gmail.com> <20070716230719.GC11115@waste.org> <469BFB73.3070105@gmail.com> <20070716232755.GD11115@waste.org> <20070719001539.GC29728@v2.random> <20070719013955.1bedc423@the-village.bc.nu> <20070719013358.GD29728@v2.random> <20070719013725.GP11115@waste.org>
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On 07/19/2007 03:37 AM, Matt Mackall wrote:

> Here's a way to make forward progress on this whole thing:
> 
> Turn on irqstacks when using 8k stacks

WLI: are you submitting? Makes great sense regardless of anything and 
they've been tested silly with 4KSTACKS already...

> Detect when usage with 8k stacks would overrun a 4k stack when doing
> our stack switch and do a WARN_ONCE

Our stack switch?

> Fix up the damn bugs

DM ofcourse is fairly "layered-by-design" so I _hope_ they can be classified 
simple bugs...

Rene.