On Mon, Nov 01, 2010 at 02:07:13PM +1300, Steven Ellis wrote: > Had a try at the weekend but I didn't have a female adapter handy to bring > up the serial console. > > I did manage to try out some Centos 5.4 kernels, all of which worked in the > Dom0 environment. I'm now running > * 2.6.18-164.15.1.el5xen > > Also I upgraded a Centos 5.3 DomU to 5.5 with no issues, and it is running > the most recent Centos 5.5 Xen kernel. > > What is really odd is that the freeze or kernel panic with a 5.5 kernel can > vary. On one occasional I got as far as the single user prompt before the > machine locked up, but usually it dies as udev start. > > I'll try and grab a cable/adapter to try again, but it will be a couple of > days before I can bring the server down again. > Did you check if the server has SOL? Many management cards/processors include SOL (Serial Over LAN). -- Pasi > Steve > > On Thu, 28 Oct 2010 17:37:17 +0300, Pasi Kärkkäinen <pasik at iki.fi> wrote: > > On Thu, Oct 28, 2010 at 01:56:33PM +1300, Steven Ellis wrote: > >> I've recently upgraded a Centos 5.3 machine to Centos 5.5. The > > hardware > >> isn't HVM capabile so I'm only running para-virt guests. > >> > >> Using a vanilla i386 kernel boots without, but the newer kernel-xen > > locks > >> up the Dom0 after a couple of minute. I'm only booting into single > > user > >> mode for these tests so no VMs are active. > >> > >> * kernel-xen-2.6.18-128.1.10.el5 - no issues > >> * kernel-xen-2.6.18-194.17.4.el5 - lock up > >> * kernel-2.6.18-194.17.4.el5 - no issues > >> > >> For the moment I've switched back to the older Xen kernel, athough > > I'm > >> still running the newer Xen Hypervisor. > >> > > > > Please set up a serial console and capture the full error/crash messages > > and post the log here. > > > > Examples here: > > http://wiki.xensource.com/xenwiki/XenSerialConsole > > > > -- Pasi > > > >> My current Xen packages are > >> > >> * xen-3.0.3-105.el5_5.5 > >> * kernel-xen-2.6.18-194.17.4.el5 > >> * kernel-xen-2.6.18-128.1.10.el5 > >> * kmod-xfs-xen-0.4-2 > >> * xen-libs-3.0.3-105.el5_5.5 > >> * kernel-xen-devel-2.6.18-194.17.4.el5 > >> * kernel-xen-devel-2.6.18-128.1.10.el5 > >> * xen-devel-3.0.3-105.el5_5.5 > >> > >> Prior to the upgrade I had the following installed under Centos 5.3 > >> > >> * kernel-xen-devel-2.6.18-128.1.6.el5 > >> * kernel-xen-2.6.18-128.1.10.el5 > >> * xen-libs-3.0.3-80.el5_3.2 > >> * xen-devel-3.0.3-80.el5_3.2 > >> * kmod-xfs-xen-0.4-2 > >> * kernel-xen-2.6.18-128.1.6.el5 > >> * kernel-xen-devel-2.6.18-128.1.10.el5 > >> * xen-3.0.3-80.el5_3.2 > >> > >> Booting Dom0 with kernel-xen-2.6.18-128.1.10.el5 everything appears > > to > >> work normally and all of my Guests are up and running. > >> > >> If I boot with kernel-xen-2.6.18-194.17.4.el5 the boot normally gets > > to > >> around udev and the system locks up. On a couple of occasions it did > > mange > >> to boot but reported some files were corrupted. I'm worried that > > there is > >> an issue running this kernel where the root file system is LVM on top > > of > >> Raid 1. > >> > >> Anyone on this list have tips on diagnosing the issue, or come across > > a > >> similar problem themselves. > >> > >> Steve > >> > >> > >> > >> > > > >> _______________________________________________ > >> CentOS-virt mailing list > >> CentOS-virt at centos.org > >> http://lists.centos.org/mailman/listinfo/centos-virt > > > > _______________________________________________ > > CentOS-virt mailing list > > CentOS-virt at centos.org > > http://lists.centos.org/mailman/listinfo/centos-virt > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt