Maybe the BIOS versions are different on the two machines if they are the same models. Different disc controllers or modes set up? Different NICs or other add on cards?
On 03/28/2017 04:55 PM, PJ Welsh 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.
On Fri, Mar 24, 2017 at 1:44 PM, Sarah Newman <srn@prgmr.com mailto:srn@prgmr.com> wrote:
On 03/24/2017 11:35 AM, PJ Welsh wrote: > As a follow up I was able to test fresh install on Dell R710 and a Dell > R620 with success on CentOS 7.3 without issue on the new kernel. My new > plan will be to just move this C6 to one of the C7 I just created. That sounds like a compiler problem, since I think the C6 and C7 kernels are built from the same source. --Sarah