linux-kernel - Re: NFS regression? Odd delays and lockups accessing an NFS export.

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Message-Id: <1219658371.27921.157.camel@localhost.localdomain>
Date:	Mon, 25 Aug 2008 10:59:31 +0100
From:	Ian Campbell <ijc@...lion.org.uk>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	John Ronciak <john.ronciak@...il.com>,
	Grant Coady <gcoady.lk@...il.com>,
	linux-kernel@...r.kernel.org, neilb@...e.de, bfields@...ldses.org,
	linux-nfs@...r.kernel.org,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	PJ Waskiewicz <peter.p.waskiewicz.jr@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	e1000-devel@...ts.sourceforge.net
Subject: Re: NFS regression? Odd delays and lockups accessing an NFS export.

On Sun, 2008-08-24 at 18:15 -0400, Trond Myklebust wrote:
> The server should ideally start to close the socket as soon as it
> receives the FIN from the client. I'll have a look at the code.

The server is a 2.6.25 kernel from Debian backports.org. I was planning
to downgrade to the 2.6.24 "Etch and a half" kernel but was holding off
while this thread was in progress. If you think it would be a useful
data point I can do it sooner rather than later.

It's changing the client kernel which seems to make a difference since
running 2.6.24 against this server has given me no trouble. I guess the
newer client could expose a bug in the server though.

Ian.
-- 
Ian Campbell

I can't understand why a person will take a year or two to write a
novel when he can easily buy one for a few dollars.
		-- Fred Allen

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