Comments inline: ----- Original Message ----- > From: "Pasi Kärkkäinen" <pasik@xxxxxx> > To: "Discussion about the virtualization on CentOS" <centos-virt@xxxxxxxxxx> > Sent: Sunday, March 9, 2014 4:32:13 AM > Subject: Re: Fwd: Xen4CentOS kernel panic on dom0 reboot > > On Sat, Mar 08, 2014 at 09:09:07AM -0600, PJ Welsh wrote: > > No, I have not followed those instructions yet. These were > > production > > servers that I had scheduled firmware updates late Sunday > > evening. The > > first time I though the error was a fluke and only began to > > research it > > after the second failure (and still no firmware updates due to > > the > > power-cycle). I may try to sneak in a restart of one of the > > systems late > > Sunday night US CT. > > > > OK. I ran the "stop" for all of the xen related pieces in the order that the /etc/rc3.d/ had them. The VM's did not shutdown and the /usr/lib64/xen/bin/qemu-dm STUFF entries were left behind running. Since I could not xm shutdown any longer, I killed off all qemu-dm proccesses and attempted a reboot... HUNG on the reboot with the prepended umount error messages... > > > Still not sure why the running vm's would stop the reboot... The > > server > > shows that it was suppose to be restarting. I have had a similar > > stuck on > > restarting message (minus all the umount errors) on some Dell > > T105's > > running CentOS 6.5 and the "reboot=pci" grub.conf kernel option > > is what > > ended up working for them. I have not tested that possible > > option yet, > > either since that would take 2 reboots to put into place. > > > > Yeah, it's worth testing both, to figure out what's wrong. Next reboot attempt included the "reboot=pci" grub.conf kernel option... No affect :( HUNG on the reboot with the prepended umount error messages... I ran out of time to attempt an xm shutdown for each VM manually, then reboot. What's interesting is that when I do an lsof on the file system that is unable to umount, the *only* connected PID's are the qemu-dm ones, but not *all* of them.??? Thanks PJ ... _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
