linux-ext4 - Re: 2.6.28.9: EXT3/NFS inodes corruption

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Date:	Thu, 6 Aug 2009 15:15:56 +0200
From:	Sylvain Rochet <gradator@...dator.net>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
	linux-nfs@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>
Subject: Re: 2.6.28.9: EXT3/NFS inodes corruption

Hi,


On Wed, Aug 05, 2009 at 12:56:19AM +0200, Jan Kara wrote:
> 
> Thanks for testing. So you seem to be really stressting the path where
> creation of new files / directories fails (probably due to group quota).

Yes, there are 29 groups over quota on a total of 4499. Those are mainly 
spammed websites and therefore quite stressed due to the amount of tries 
to add new "data".


> I have one idea what could cause your filesystem corruption, although 
> it's a wild guess... Please try attached oneliner.

Running since yesterday.


> Also your corruption reminded me that Al Viro has been fixing problems
> where we could cache one inode twice when a filesystem was mounted over NFS
> and that could also lead to a filesystem corruption. So I'm adding him to
> CC just in case he has some idea. BTW Al, what do you think about the
> problem I describe in the attached patch? I'm not sure if it can cause some
> real problems but in theory it could...

Should we upgrade NFS clients as well ?  (now running 2.6.28.9)


Sylvain

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