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Subject: Re: %u-order allocation failed
To: mikulas@artax.karlin.mff.cuni.cz (Mikulas Patocka)
Date: Sun, 7 Oct 2001 10:40:23 +0100 (BST)
Cc: 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.3.96.1011006164044.29342B-200000@artax.karlin.mff.cuni.cz> from "Mikulas Patocka" at Oct 06, 2001 04:44:43 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Here goes the fix. (note that I didn't try to compile it so there may be
> bugs, but you see the point). 

It isnt a fix

> kmalloc should be fixed too (used badly for example in select.c - and yes
> - I have seen real world bugreports for poll randomly failing with
> ENOMEM), but it will be hard to audit all drivers that they do not try to
> use dma on kmallocated memory. 

So you run out of blocks of vmalloc address space instead. The same problem
still occurs and always will
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