From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Magenheimer Subject: Re: Xen 4.2.0 won't boot with FC17 dom0 on Dell Optiplex 790, boots fine with 4.1.3 Date: Fri, 31 Aug 2012 07:59:30 -0700 (PDT) Message-ID: <4fed3a7c-df88-496c-800b-bcc8f723606e@default> References: <76048170-772b-4365-87d2-00a3bf4aa5f8@default> <503F053D.5010001@uts.edu.au> <5040B6940200007800097CDE@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5040B6940200007800097CDE@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich , bing Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org > From: Jan Beulich [mailto:JBeulich@suse.com] > Subject: Re: [Xen-devel] Xen 4.2.0 won't boot with FC17 dom0 on Dell Optiplex 790, boots fine with > 4.1.3 > > >>> On 30.08.12 at 19:04, Dan Magenheimer wrote: > >> From: bing [mailto:Libing.Chen@uts.edu.au] > >> Sent: Thursday, August 30, 2012 12:16 AM > >> To: xen-devel@lists.xen.org > >> Subject: Re: [Xen-devel] Xen 4.2.0 won't boot with FC17 dom0 on Dell Optiplex > > 790, boots fine with > >> 4.1.3 > >> > >> I have a similar crash on Xen 4.2.0-rc3 with HP DC7900, reboot right > >> after loading Dom0 kernel. I found a workaround by pass xsave=0 option > >> to the xen kernel. It seems to be CPU related, same setup (same xen, > >> Dom0 kernel version) works fine on another Dell Precision 3200. > > > > Thanks, just saw this as I wasn't cc'ed on your email. xsave=0 > > did solve my problem also. > > But that was known to be required only with certain, non-upstream > broken kernels (which got their own xsave handling wrong). Can > either of you confirm this is a problem with a plain upstream kernel > now too (and if so, which version(s))? Konrad told me this was a known problem on Fedora so I didn't try an upstream kernel. Dan