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Re: NFS export broke with change from ext3 to xfs

To: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Subject: Re: NFS export broke with change from ext3 to xfs
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 6 Jan 2010 13:09:38 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20100105213714.5b9b2a11@xxxxxxxxxxxxxx>
References: <1262652500.24160.27.camel@xxxxxxxxxxxxxxxxxx> <20100105174332.GA14496@xxxxxxxxxxxxx> <20100105213714.5b9b2a11@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.19 (2009-01-05)
On Tue, Jan 05, 2010 at 09:37:14PM +0100, Emmanuel Florac wrote:
> Le Tue, 5 Jan 2010 12:43:32 -0500 vous ?criviez:
> 
> > Remove the inode64 mount option or move every export to a separate
> > filesystem.  The NFS code can't cope with 64 bit inode numbers when
> > exporting a subtree of a filesystem.  You'd see the same issue with
> > e.g. ocfs2 or gfs2.
> 
> Does the kernel architecture (32 or 64 bits) have any influence there?

Unfortunately not.  But if you specify a uuid in the /etc/exports
file it should use a different filesystem handle format that has space
for 8 byte inode numbers.  I'm not entirely sure how nfsutils selects
them - it's been a while since I dealt with that code.

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