linux-kernel - Re: 2.6.xx: NFS: directory motion/cam2 contains a readdir loop

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Message-ID: <4E3058CF.9020304@netapp.com>
Date:	Wed, 27 Jul 2011 14:28:31 -0400
From:	Bryan Schumaker <bjschuma@...app.com>
To:	Ruediger Meier <sweet_f_a@....de>
CC:	Justin Piszcz <jpiszcz@...idpixels.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	xfs@....sgi.com
Subject: Re: 2.6.xx: NFS: directory motion/cam2 contains a readdir loop

On 07/27/2011 01:00 PM, Ruediger Meier wrote:
> On Wednesday 27 July 2011, Bryan Schumaker wrote:
>> On 07/27/2011 12:28 PM, Justin Piszcz wrote:
>>> On Wed, 27 Jul 2011, J. Bruce Fields wrote:
>>>>
>>>> What filesystem on the server are you exporting?
>>>
>>> xfs.
>>> /dev/sda1 on / type xfs (rw,noatime)
>>>
>>> Nothing special, thoughts?
>>
>> Are there a lot of files in the directory you're exporting?  It looks
>> like cookie 10272 is mapped to multiple files.
> 
> I thought xfs is immune to readdir loops!?

I can ls a directory with 500,000 files over nfs4.  That's usually enough to cause the readdir loop in ext4, so I guess this is a different problem.

> Is your export directory really located directly within / on /dev/sda1?
> 
> cu,
> Rudi

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