Subject: Re: [CentOS-virt] Xen4CentOS kernel panic on dom0 reboot
On Wed, Mar 5, 2014 at 10:17 AM, David Vrabel <david.vrabel at citrix.com>wrote:
On 05/03/14 15:09, Karl Johnson wrote:
I've been using Xen4CentOS for the last 3 months. It's working fine and dom0/domUs are stable but the server does a kernel panic when doing a reboot and the server has to be hard reset manually. It has kernel panic
on the 3 last reboot.
There is a xenbus device still present and during shutdown it is trying to set it to CLOSED but at this point xenstored isn't running and the xenbus write stalls.
Do you have VMs that are still running when you attempt a reboot? If so shutting them down will likely avoid this.
Can you provide the output of xenstore-ls prior to attempting a reboot?
I though Xen init.d scripts would stop all of them before rebooting? Here's the output of chkconfig and xenstore-ls:
http://pastebin.centos.org/8186/
Thanks,
Karl
I've got the "me-too" on the reboot hang issue for 2 different Dell R710's with xen-4.2.4-29.el6 and at least the kernels kernel-3.10.25-11.el6.centos.alt.x86_64 and kernel-3.10.23-11.el6.centos.alt.x86_64. I have not tried to reboot with the latest kernel-3.10.32-11.el6.centos.alt.x86_64 (if kernel even makes a difference). I *have* had dom0_mem=1024M,max:1024M option in place for all of them with only 6 VM's.
Any new suggestions?
pjwelsh