From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Burns Subject: Re: Test results on Unisys ES7000 64x 256gb using unstablec/s 16693 on 3.2.0 Release Candidate Date: Fri, 25 Jan 2008 08:06:55 -0500 Message-ID: <4799DEEF.4000302@redhat.com> References: <478E2691.6060307@redhat.com> <4790A392.9040403@redhat.com> <4798C97F.1040907@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4798C97F.1040907@redhat.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: Bill Burns Cc: Ian Pratt , xen-devel@lists.xensource.com, "Carb, Brian A" List-Id: xen-devel@lists.xenproject.org Bill Burns wrote: > Bill Burns wrote: >> Ian Pratt wrote: >>>>>> No, I have not tried on 3.2.0. Will see if I can at some >>>>>> point... >>>>> Also, do you have any more info to share on what actually goes wrong >>>> when >>>>> dom0 has 'too much' memory? >>>>> >>>> The dom0 kernel spits out messages like the following starting around >>>> the >>>> init of cpu1 time, and periodically thereafter. >>>> >>>> Timer ISR/0: Time went backwards: delta=-50206266948 >>> delta_cpu=13733052 >>>> shadow=8186343367 off=13649733458 processed=72042343367 >>>> cpu_processed=21822343367 >>>> >>>> Eventually just hanging (or making such slow progress to be >>>> effectively hung). >>> How many CPUs does the system have? Does the same large memory issue >>> occur if you have fewer physical CPUs? >>> >> The system has 64 but is only built for 32, so the others are >> ignored. Don't know if the problem happens with less CPUs at >> this point. Hope to get more data soon... >> > > Interestingly, the symptom seems to disappear with a > Hypervisor built to support all 64 CPUs. But I need to > get more time on the system to say that for sure. > Disregard the previous. It still happens. Continuing to debug.. Bill > Bill > > > >> Thanks, >> Bill >> >>> Thanks, >>> Ian >>> >>> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel >