From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: DomU clock jumps forward then freezes after Dom0 reboot Date: Mon, 25 Oct 2010 16:25:53 -0700 Message-ID: <4CC61201.1090409@goop.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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: =?UTF-8?B?Q8OpZHJpYyBTY2hpZWxp?= Cc: xen-devel List-Id: xen-devel@lists.xenproject.org On 10/24/2010 05:31 AM, C=C3=A9dric Schieli wrote: > Hello, > > I can confirm my problem reported here > http://lists.xensource.com/archives/html/xen-devel/2010-10/msg00057.htm= l > is the same. > DomU kernels affected by the migration hang are also affected by the > save/restore hang. Reverting "x86, paravirt: Add a global > synchronization point for pvclock" also fix the save/restore hang. > After doing save/reboot/restore (which led to a hang), migrating it to > a host with a longer uptime will unblock the domain, but the wallclock > will be several hours forward. Migrating back will block again. Ah, thanks for that. I was trying to think of what changes could have broken that, since it certainly used to work. I'll sort out a fix. Thanks, J > Regards, > C=C3=A9dric Schieli > > 2010/10/19 Olivier Hanesse : >> Hello, >> >> I think I got exactly the same bug. >> >> After a reboot, all my DomU are stuck during X min , where X was the >> "uptime" of the dom0 before reboot. >> >> Save/Restore without reboot works perfectly. >> >> I am running Debian Lenny with backports : >> >> ii xen-hypervisor-4.0-amd64 4.0.1-1 >> The Xen Hypervisor on AMD64 >> ii linux-image-2.6.32-bpo.5-xen-amd64 2.6.32-23~bpo50+1 >> Linux 2.6.32 for 64-bit PCs, Xen dom0 suppor >> >> Any ideas ? >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel >> >> > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >