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From: Christoph Hellwig <hch@lst.de>
To: Tejun Heo <tj@kernel.org>
Cc: linux-kernel@vger.kernel.org
Subject: new barrier warnings in 2.6.29-rc1
Date: Mon, 12 Jan 2009 16:46:34 +0100	[thread overview]
Message-ID: <20090112154634.GA15730@lst.de> (raw)

Whever a filesystem submits a bio with the barrier flag set but
the underlying hardware doesn't support it we now get errors in
the form of:

[ 3046.442629] end_request: I/O error, dev vdb, sector 0

since commit a7384677b2f4cd40948fd7ce024ba5e1821444ba which removed
the early check on the queue capabilities in __make_request.  I
think this message is pretty annoying and confusing for the user
as the filesystems already have more descriptive warnings, e.g. for
XFS:

[ 3046.455478] Filesystem "vdb": Disabling barriers, trial barrier write failed

             reply	other threads:[~2009-01-12 15:46 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-12 15:46 Christoph Hellwig [this message]
2009-01-13  3:23 ` new barrier warnings in 2.6.29-rc1 Tejun Heo
2009-01-13  8:42   ` Jens Axboe
2009-01-13 10:40     ` Tejun Heo
2009-01-13 10:45       ` Jens Axboe
2009-01-18 22:15     ` Christoph Hellwig
2009-01-19 20:19       ` Jens Axboe

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