linux-kernel - Re: [13/18] x86_64: Allow fallback for the stack

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Message-Id: <200710071735.41386.nickpiggin@yahoo.com.au>
Date:	Sun, 7 Oct 2007 17:35:41 +1000
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Christoph Lameter <clameter@....com>
Cc:	Rik van Riel <riel@...hat.com>, Andi Kleen <ak@...e.de>,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, travis@....com
Subject: Re: [13/18] x86_64: Allow fallback for the stack

On Friday 05 October 2007 07:20, Christoph Lameter wrote:
> On Thu, 4 Oct 2007, Rik van Riel wrote:
> > > Well we can now address the rarity. That is the whole point of the
> > > patchset.
> >
> > Introducing complexity to fight a very rare problem with a good
> > fallback (refusing to fork more tasks, as well as lumpy reclaim)
> > somehow does not seem like a good tradeoff.
>
> The problem can become non-rare on special low memory machines doing wild
> swapping things though.

But only your huge systems will be using huge stacks?
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