From mboxrd@z Thu Jan 1 00:00:00 1970 From: Igor Mammedov Subject: Re: Re: FC15: 32-bit PV guest crash on restore on x64_86 host Date: Fri, 06 May 2011 19:41:20 +0200 Message-ID: <4DC432C0.8060407@redhat.com> References: <4DC1AFC9.2070407@redhat.com> <20110504201951.GB2117@dumpdata.com> <4DC1BF08.50903@redhat.com> <20110504211320.GA6769@dumpdata.com> <20110505212804.GA9501@dumpdata.com> <4DC41EDA.6020908@redhat.com> <20110506171214.GA9499@dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110506171214.GA9499@dumpdata.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 05/06/2011 07:12 PM, Konrad Rzeszutek Wilk wrote: > On Fri, May 06, 2011 at 06:16:26PM +0200, Igor Mammedov wrote: >> On 05/05/2011 11:28 PM, Konrad Rzeszutek Wilk wrote: >>> On Wed, May 04, 2011 at 05:13:20PM -0400, Konrad Rzeszutek Wilk wrote: >>>> On Wed, May 04, 2011 at 11:03:04PM +0200, Igor Mammedov wrote: >>>>> On 05/04/2011 10:19 PM, Konrad Rzeszutek Wilk wrote: >>>>>> On Wed, May 04, 2011 at 09:58:01PM +0200, Igor Mammedov wrote: >>>>>>> On restore 32bit PV guest crashes on x64_86 host, while x64_86 PV guest >>>>>>> works as expected. >>> I tried this with 2.6.39-rc6 and could not reproduce this. Does it work >>> for you with 2.6.39-rc6? Or is it _only_ failing with 2.6.38? >>> >>> >> It's failing with 2.6.39-rc6 as well. And 2.6.38 with suggested >> patches as well. >> >> But since I do like fast builds, I've used fast PC with 2 NUMA nodes >> at least and > Hmm, the guest is a single CPU one, so perhaps you are hitting a hypervisor > issue. What happens if you turn NUMA off on the hypervisor line? Looks like removing numa=on from hypervisor init line helped, guest stays alive after restore. >> it turns out that the bug is not reproducible on PC with only one >> cpu (HPZ800 >> 1 socket config). So you can reproduce it if you try a PC with at >> least 2 cpus >> nodes. > Ok, I've an old IBM x366 that has four sockets - that should do it - > but will have to wait till next week when I am back from traveling. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel