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Date: Fri, 08 Feb 2002 15:36:31 +0000
From: Arjan van de Ven <arjanv@redhat.com>
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To: Tigran Aivazian <tigran@veritas.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: [patch] larger kernel stack (8k->16k) per task
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Tigran Aivazian wrote:
> 
> Hi,
> 
> In the light of some talks here about increasing kernel stack, here is my
> patch for i386 architecture that some may find useful. It also has a nice
> extra (/proc/stack) implemented by Hugh Dickins which helps to find major
> offenders.
> 
> It is against 2.4.9 but should be easy to port in any direction. (One way
> the patch could be improved is by making the size CONFIG_ option instead
> of hardcoding). Oh btw, please don't tell me "but now you'd need _four_
> physically-contiguous pages to create a task instead of two!" because I
> know it (and think it's not too bad).


I do think it is too bad. Sorry.
Also it's the wrong approach. The right approach (as done by Manfred and
David) is
to put "current" no longer on this stack just a pointer to current.
And .... if you need a 16Kb stack your kernel code is VERY VERY sick.

Greetings,
   Arjan van de Ven
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