From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sander Eikelenboom <linux@eikelenboom.it>
Subject: Re: [PATCH] x86/vMSI-X: Fix host crash when shutting
	down guests with MSI capable devices
Date: Fri, 22 Jul 2016 10:50:17 +0200
Message-ID: <1232921799.20160722105017@eikelenboom.it>
References: <cda5c5669c9977feade120397ff428ec@eikelenboom.it>
 <1469096317-6643-1-git-send-email-andrew.cooper3@citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <1469096317-6643-1-git-send-email-andrew.cooper3@citrix.com>
List-Unsubscribe: <https://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <https://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>, Xen-devel <xen-devel@lists.xen.org>
List-Id: xen-devel@lists.xenproject.org
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