XFS dirty after sync/reboot?

[Ben Myers]

Hey Philip,

On Fri, Jan 25, 2013 at 01:32:55PM -0500, Phillip Susi wrote:
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> While triaging a bug filed in Ubuntu involving odd reboot failures, it
> appears that XFS leaves the filesystem in a corrupt state that
> requires journal playback to fix after a sync or reboot.  Grub2
> doesn't seem to understand the journal, leading to all kinds of
> confusion after the reboot.
>
> Shouldn't a full sync or remount to r/o flush the journal transactions
> and leave the fs fully clean?

It should.  We have a bug in xfs in that area.

> Original bug report: https://launchpad.net/bugs/1103187

Try this patch which was recently proposed for 3.5-3.7 stable trees:
http://oss.sgi.com/archives/xfs/2012-12/msg00324.html

Regards,
Ben