From mboxrd@z Thu Jan  1 00:00:00 1970
From: Simon Rowe <simon.rowe@eu.citrix.com>
Subject: Re: megasas stops I/O when running kernel as dom0 under
	xen4.1/4.2
Date: Mon, 15 Aug 2011 11:49:43 +0100
Message-ID: <201108151149.44053.simon.rowe@eu.citrix.com>
References: <4E43E04B.8010401@leuphana.de> <20110811225119.GA3557@dumpdata.com>
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Cc: Andreas Olsowski <andreas.olsowski@leuphana.de>
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I've found adding

	options megaraid_sas poll_mode_io=1

makes both of the systems we're seeing this on stable.

Have you run your system with Xen 3.4? Did you see the same behaviour?

	Simon