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Date: Mon, 08 Oct 2001 23:53:18 +0100
From: Alex Bligh - linux-kernel <linux-kernel@alex.org.uk>
Reply-To: Alex Bligh - linux-kernel <linux-kernel@alex.org.uk>
To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Rik van Riel <riel@conectiva.com.br>,
        Krzysztof Rusocki <kszysiu@main.braxis.co.uk>, linux-xfs@oss.sgi.com,
        linux-kernel@vger.kernel.org,
        Alex Bligh - linux-kernel <linux-kernel@alex.org.uk>
Subject: Re: %u-order allocation failed
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--On Tuesday, 09 October, 2001 12:21 AM +0200 Mikulas Patocka 
<mikulas@artax.karlin.mff.cuni.cz> wrote:

> If you have more than half of virtual space free, you can always find two
> consecutive free pages. Period.

Now calculate the probability of not being able to do this in physical
space, assuming even page dispersion, and many pages free. You will
find it is very small. This may give you a clue as to what the problem
actually is.

--
Alex Bligh
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