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Subject: Re: %u-order allocation failed
To: mikulas@artax.karlin.mff.cuni.cz (Mikulas Patocka)
Date: Sun, 7 Oct 2001 15:12:37 +0100 (BST)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), riel@conectiva.com.br (Rik van Riel),
        kszysiu@main.braxis.co.uk (Krzysztof Rusocki), linux-xfs@oss.sgi.com,
        linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.3.96.1011007141040.1764A-100000@artax.karlin.mff.cuni.cz> from "Mikulas Patocka" at Oct 07, 2001 02:28:17 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Yes - you can run out of vmalloc space. But you run out of it only when
> you create too many processes (8192), load too many modules etc. If
> someone needs to put such heavy load on linux, we can expect that he is
> not a luser and he knows how to increase size of vmalloc space.

Not just that - you get fragmentation of it which leads you back to the
same situation as kmalloc except that with the guard pages you fragment the
address space more.

Alan
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