[CentOS-virt] Xen C6 kernel 4.9.13 and testing 4.9.15 only reboots.

[George Dunlap]

On Tue, Mar 28, 2017 at 10:55 PM, PJ Welsh <pjwelsh at gmail.com> wrote:
> The mystery gets more interesting... I now have a CentOS 7.3 Dell R710
> server doing the exact same thing of rebooting immediately after the Xen
> kernel load. Just to note this is a second system and not just the first
> system with an update. I hope I'm not introducing something odd. They only
> "interesting" thing I have done for historical reasons is to change the
> following /etc/sysconfig/grub line:
> GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=6G,max:8G cpuinfo com1=115200,8n1
> console=com1,tty loglvl=all guest_loglvl=all"
> But I've done that on other servers without issue. In fact I have a Dell
> R710 that DOES work with CentOS 7 and the new kernel... so confused.

PJ,

Thanks for your testing and report.  Would you mind reporting this on
xen-devel?  If there's actually a bug in the Linux  4.9.x on Xen boot
path on your box, I don't think Johnny or I are going to be able to
help you debug it. :-)

 -George