Subject: Re: NFS client/sunrpc getting stuck on 2.6.36
From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Simon Kirby <sim@hostway.ca>
Cc: linux-nfs@vger.kernel.org
In-Reply-To: <20101121064025.GA3285@hostway.ca>
References: <20101111023520.GH16939@hostway.ca>
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	 <20101119202004.GA3270@hostway.ca>
	 <1290201888.3135.61.camel@heimdal.trondhjem.org>
	 <20101119220356.GB3270@hostway.ca>
	 <1290205039.3135.74.camel@heimdal.trondhjem.org>
	 <20101121064025.GA3285@hostway.ca>
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Date: Sun, 21 Nov 2010 14:54:20 -0500
Message-ID: <1290369260.5481.18.camel@heimdal.trondhjem.org>
Sender: linux-nfs-owner@vger.kernel.org
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On Sat, 2010-11-20 at 22:40 -0800, Simon Kirby wrote:
> On Fri, Nov 19, 2010 at 05:17:19PM -0500, Trond Myklebust wrote:
> 
> > The only change in 2.6.37-rcX I can think of that might have caused an
> > issue here would be Bryan's readdir changes.
> > 
> > If you can reproduce the above error condition, then could you try
> > turning off readdirplus (using the 'nordirplus' mount option) and seeing
> > if that makes a difference?
> 
> So, of the three boxes now running 2.6.37-rc2-git3, I have two mounted
> with nordirplus.  One I booted with "nordirplus" has never logged the
> error.  Another I haven't changed the fstab on, is still logging this
> fairly often (nfsstat shows it has only made readdirplus calls):
> 
> [219158.456270] NFS: server 10.10.52.230 error: fileid changed
> [219158.456273] fsid 0:4e: expected fileid 0x57bcf57c, got 0x57bd5442
> 
> Finally, on the last one I had remounted all of the NFS mount points with
> that option, and there have been no errors since.

I just posted 8 patches to fix up bugs and regressions in the readdir
code. Can you try with some of these?

Cheers
  Trond