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Date:	Fri, 28 Sep 2012 09:21:26 -0400
From:	Bryan Schumaker <bjschuma@...app.com>
To:	Joerg Roedel <joro@...tes.org>
CC:	Joerg Roedel <joerg.roedel@....com>,
	"Myklebust, Trond" <Trond.Myklebust@...app.com>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: kernel BUG at /data/lemmy/linux.trees.git/fs/nfs/idmap.c:681!

On 09/28/2012 08:17 AM, Joerg Roedel wrote:
> On Thu, Sep 27, 2012 at 02:15:21PM -0400, Bryan Schumaker wrote:
> 
>> Double check that you're using the legacy idmapper, and not the
>> keyring based one (/etc/request-key.conf shouldn't have the "create
>> id_resolver * * /usr/bin/nfsidmap %k %d" line).
> 
> That should only be relevant for NFSv4, no? I am using v3 only (without
> explicitly setting the version as mount option).

Any idmapper problem is only relevant to v4, so if you're seeing a problem that means you're not using NFS v3.

> 
> Anyway, I had no luck on reproducing the failure again after
> re-installation of the box, either with of with-out my patches on-top. I
> tried a few different config settings for NFS too, but the BUG didn't
> trigger again :-/

Maybe it's mounting over v3 now?  Can you retry using "vers=4" in your mount options?

- Bryan

> 
> 
> 	Joerg
> 
> 

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