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

To: Ruediger Meier <sweet_f_a@xxxxxx>
Subject: Re: 2.6.xx: NFS: directory motion/cam2 contains a readdir loop
From: Bryan Schumaker <bjschuma@xxxxxxxxxx>
Date: Wed, 27 Jul 2011 14:28:31 -0400
Cc: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>, "J. Bruce Fields" <bfields@xxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <201107271900.11091.sweet_f_a@xxxxxx>
References: <alpine.DEB.2.02.1107270952270.1451@xxxxxxxxxxxxxxxx> <alpine.DEB.2.02.1107271227340.1451@xxxxxxxxxxxxxxxx> <4E303F6F.8010706@xxxxxxxxxx> <201107271900.11091.sweet_f_a@xxxxxx>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110628 Thunderbird/5.0
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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