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Date: Fri, 30 Aug 2002 09:18:17 -0300 (BRT)
From: Rik van Riel <riel@conectiva.com.br>
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To: "Pedro M. Rodrigues" <pmanuel@myrealbox.com>
cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, <linux-kernel@vger.kernel.org>
Subject: Re: PROBLEM: nfs & "Warning - running *really* short on DMA buffers"
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On Fri, 30 Aug 2002, Pedro M. Rodrigues wrote:

>    I do wan't to tune the vm settings, these warnings may not be
> fatal but it's not pretty to have hundreds of those in the console
> and log files. Bear with me on this one, but i remember doing exactly
> that in the past, tuning  /proc/sys/vm/freepages. How does one
> acomplish that nowadays? I looked at the kernel source documentation
> and still found references to freepages, but vm/freepages doesn't
> exist anymore. Kernel is 2.4.18-10 from Redhat.

For fundamental reasons it's always possible for non-sleeping
allocations to fail.  I think this warning just needs to be
rate-limited, if it isn't already ...

OTOH, failed allocations could serve as a hint for kswapd to
try to keep more memory free. I should look into that for some
next version.

regards,

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

http://www.surriel.com/		http://distro.conectiva.com/

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