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Subject: Re: Swapping for diskless nodes
To: abali@us.ibm.com (Bulent Abali)
Date: Thu, 9 Aug 2001 16:13:11 +0100 (BST)
Cc: dws@dirksteinberg.de (Dirk W. Steinberg),
        ingo.oeser@informatik.tu-chemnitz.de (Ingo Oeser),
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        alan@lxorguk.ukuu.org.uk (Alan Cox)
In-Reply-To: <OF452D802E.BE93E657-ON85256AA3.004E8422@pok.ibm.com> from "Bulent Abali" at Aug 09, 2001 10:26:22 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Last time I checked swapping over nbd required patching the network stack.
> Because swapping occurs when memory is low and when memory is low TCP
> doesn't do what you expect it to do...

Its a case of having sufficient memory in the atomic pools. Its possible to
do some ugly quick kernel hack to make the pool commit less likely to be a 
problem.

Ultimately its an insoluble problem, neither SunOS, Solaris or NetBSD are
infallible, they just never fail for any normal situation, and thats good
enough for me as a solution