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