From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Xen 4.0.0-rc7 problem/hang with vt-d DMAR parsing Date: Tue, 23 Mar 2010 19:54:33 +0000 Message-ID: References: <20100323193748.GW1878@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20100323193748.GW1878@reaktio.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Pasi =?ISO-8859-1?B?S+Rya2vkaW5lbg==?= Cc: "xen-devel@lists.xensource.com" , Weidong Han List-Id: xen-devel@lists.xenproject.org On 23/03/2010 19:37, "Pasi K=E4rkk=E4inen" wrote: >> It's not impossible that the BIOS VT-d support is just broken (I assume >> you've never tested VT-d on this particular type of system before). >=20 > Yeah, I've never used VT-d on this system earlier, so it could just be br= oken > BIOS. > I guess Xen still shouldn't hang on it? We'd prefer to gracefully disable VT-d. -- Keir