linux-kernel - Re: [2.6.23-rc3] NFSv4 client oops

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Message-ID: <46C37E89.6030204@redhat.com>
Date:	Wed, 15 Aug 2007 18:30:33 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	Trond Myklebust <trond.myklebust@....uio.no>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [2.6.23-rc3] NFSv4 client oops

On 08/15/2007 06:08 PM, Jeff Garzik wrote:
> While upgrading nfs-utils on my NFSv4 file server (F7 x86-64
> 2.6.23-rc3), I got an oops on the NFSv4 client (FC6 x86-64 2.6.23-rc3),
> and communications stopped.
> 
> I rebooted the client, and everything was fine again.  Then, on the
> server, I removed an extra nfs-utils package left over from FC6, causing
> the nfs daemons to be restarted.  Another oops.
> 
> So it seems like whatever Fedora does during an nfs-utils upgrade __on
> the server__ is causing a remote oops __on the client__.
> 
> NFSv4 client kernel config also attached.
> 
> Never seen this problem before, but then again, never did a remote OS
> upgrade of the fileserver while running NFSv4 before.
> 

Can you post disassembly of the encode_open() function? The x86_64 code
dump doesn't give enough preceding code to diagnose the problem.

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