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

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Date:	Sat, 30 Aug 2008 16:47:41 +0100
From:	Ian Campbell <ijc@...lion.org.uk>
To:	Tom Tucker <tom@...ngridcomputing.com>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	Trond Myklebust <trond.myklebust@....uio.no>,
	John Ronciak <john.ronciak@...il.com>,
	Grant Coady <gcoady.lk@...il.com>,
	linux-kernel@...r.kernel.org, neilb@...e.de,
	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 Wed, 2008-08-27 at 09:43 -0500, Tom Tucker wrote:
> Sure. I've actually tried to reproduce it here unsuccessfully.
> 
> As a starter, I would suggest turning on transport debugging:
> 
> # echo 256 > /proc/sys/sunrpc/rpc_debug
> [...]
> If Ian is willing to create the log (or already has one), I'm
> certainly willing to look at it.

It produced only the following (is that what was expected?):

[146866.448112] -pid- proc flgs status -client- -prog- --rqstp- -timeout -rpcwait -action- ---ops--
[146866.448112] 30576 0001 00a0      0 f77a1600 100003 f7903340    15000 xprt_pending fa0ba88e fa0c9df4
[146866.448112] 30577 0004 0080    -11 f77a1600 100003 f7903000        0 xprt_sending fa0ba88e fa0c9df4

Ian.
-- 
Ian Campbell

Life is a concentration camp.  You're stuck here and there's no way
out and you can only rage impotently against your persecutors.
		-- Woody Allen

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