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Any on-disk format changes recently?

To: xfs@xxxxxxxxxxx
Subject: Any on-disk format changes recently?
From: Asdo <asdo@xxxxxxxxxxxxx>
Date: Tue, 24 Nov 2009 20:04:38 +0100
User-agent: Thunderbird 2.0.0.22 (X11/20090608)
Dear XFS people
I am tracking a nasty bug for which I would need to regress the kernel version from 2.6.31 down to 2.6.28 or maybe even 2.6.24. I have to do this on an important fileserver full of important data on XFS filesystems which were created on 2.6.31.
I also need to *write* to the XFS filesystems after regressing the kernel.
Do you see any problems with this? Have there been on-disk format changes for XFS since 2.6.24 that could trigger data loss? (or with much minor concern, fail the mount?)

Thank you
Asdo

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