linux-kernel - Re: I/O scheduler deadlocks on Xen virtual block devices

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Date:	Thu, 2 Sep 2010 09:34:59 +0100
From:	Doug Neal <dneallkml@...il.com>
To:	Jeff Moyer <jmoyer@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: I/O scheduler deadlocks on Xen virtual block devices

>
> Did you try these different I/O schedulers in the domU or on the dom0?
> Does switching I/O schedulers in either place make the problem go away
> when it happens?
>

In the domU, and the bug was present in all cases. The dom0 was using
cfq. I'll run the tests again using each scheduler in the dom0 with
domU set to noop and report back.

Thanks,

Doug
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