From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: Video Presentation on PCI Express x16 VGA Pass Through to Xen-based Windows XP Home Edition HVM Virtual Machine Date: Tue, 15 Sep 2009 16:40:20 -0700 Message-ID: <4AB025E4.1000303@goop.org> References: <20090910140359.GB31123@reaktio.net> <4AA942BC.6080404@goop.org> <20090911160319.GJ31123@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Mr. Teo En Ming (Zhang Enming)" Cc: xen-devel@lists.xensource.com, Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 09/11/09 19:52, Mr. Teo En Ming (Zhang Enming) wrote: > Hi, > > I have tried pvops dom 0 kernel 2.6.31 final from Jeremy's tree. > > But it gave me a USB host controller died error. > > Please refer to the error output here: > > http://teo-en-ming-aka-zhang-enming.blogspot.com/2009/09/error-with-pv-ops-dom-0-kernel-2631.html > Do you have CONFIG_SWIOTLB enabled? I'm presuming you must because Xen always configures it, but these crashes look like something is amiss with it. Also, try a new kernel - as of today - because I just fixed a pretty serious bug. However it should only affect reliability when doing guest IO, not just normal bootup. (It may have some bearing on your performance regression.) J