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	for kexec@lists.infradead.org; Sun, 04 Apr 2010 09:19:37 +0000
Subject: Re: [PATCH 3/4] Revert "x86: disable IOMMUs on kernel crash"
References: <20100403012751.834020949@sous-sol.org>
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	<20100403172224.GO24846@8bytes.org> <m18w94l9c9.fsf@fess.ebiederm.org>
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From: ebiederm@xmission.com (Eric W. Biederman)
Date: Sun, 04 Apr 2010 02:19:33 -0700
In-Reply-To: <m1fx3befxr.fsf@fess.ebiederm.org> (Eric W. Biederman's message
	of "Sun\, 04 Apr 2010 02\:16\:00 -0700")
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To: Joerg Roedel <joro@8bytes.org>
Cc: nhorman@redhat.com, nhorman@tuxdriver.com, Joerg Roedel <joerg.roedel@amd.com>, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Chris Wright <chrisw@sous-sol.org>, hbabu@us.ibm.com, iommu@lists.linux-foundation.org, vgoyal@redhat.com


I guess I should add the place where I have serious test results for with
a gart is on 2.6.29.  Where there isn't that iommu shutdown and I don't have
problems with it.

So my experience is that touching the gart in machine_crash_shutdown is
unnecessary.

Eric

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