From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Re: [vt-d][xen4-rc6] Hangs on startup Date: Thu, 18 Mar 2010 10:19:09 -0400 Message-ID: <20100318141909.GA14445@phenom.dumpdata.com> References: <20100317201446.GA7785@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline 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: =?utf-8?B?xYF1a2FzeiBPbGXFmw==?= Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Wed, Mar 17, 2010 at 10:48:28PM +0100, =C5=81ukasz Ole=C5=9B wrote: > 2010/3/17 Konrad Rzeszutek Wilk : > > On Wed, Mar 17, 2010 at 07:20:19PM +0100, =C5=81ukasz Ole=C5=9B wrote= : > > This is troubling: > > # (XEN) mm.c:859:d0 Error getting mfn 40100 (pfn 5555555555555555) fr= om L1 > > entry 8000000040100473 for l1e_owner=3D0, pg_owner=3D32753 >=20 > It's happening durring dom0 start with and without iommu enabled. >=20 > > You need to run Linux kernel with more debugging. Use 'debug > > loglevel=3D10' to see it conjoined with Xen. >=20 > I need to recompile kernel, then I will post new logs. >=20 > > Also can you try to boot your machine _without_ using X? >=20 > Or you mean domU without XWindow? I will try. Please do. >=20 > > When is this happening? > > # (XEN) mm.c:859:d2 Error getting mfn 40010 (pfn 5555555555555555) fr= om L1 > > entry 0000000040010037 for l1e_owner=3D2, pg_owner=3D2 >=20 > It starts to show after xm create and stops after xm destroy when I > try to pass-through devices. Without pci=3D[ ] option there is What version of Linux kernel do you have in your DomU? There was a serious problem in 2.6.32 with the Xen fb that causes this type of failure that was fixed at some point (don't remember the time-frame thought :-(). I haven't seen this with PCI passthrough on my test-bed - but I do see th= at with DRM, which you don't have enabled. Can you make sure you have the latest version of xen/next from Jeremy's git tree? > no such error. >=20 > > At what point does this happen in the > > guest? Can you attach the screenshot of your guest when this is > > happening? >=20 > My vnc shows only white screen. xm console doesn't work. I have no > access to guest. >=20 > Without pci option guest works fine and I can connect to it. Did you try other PCI devices and seen if they do the same thing? >=20 > Regards, > =C5=81ukasz Ole=C5=9B