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

2017-04-18 Thread Johnny Hughes
On 04/14/2017 03:26 PM, Anderson, Dave wrote: > Sad to say that I already tested 4.9.20-26 from your repo yesterday...it does > look a little cleaner before it dies, but still dies. I have not tested it > with the vcpu=4 wokaround, but I can tonight if you would like. Relevant bits > below: >

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

2017-04-18 Thread PJ Welsh
There was a note that the non-Xen kernel at the same kernel version did indeed boot: "CentOS-6 4.9.20-26 kernel exhibits the same constant kernel-start-then-reboot issue when booting under the "CentOS Linux, with Xen hypervisor" grub2 menu option. However, it *does* properly boot under the "CentOS

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

2017-04-18 Thread PJ Welsh
Here is something interesting... I went through the BIOS options and found that one R710 that *is* functioning only differed in that "Logical Processor"/Hyperthreading was *enabled* while the one that is *not* functioning had HT *disabled*. Enabled Logical Processor and the system starts without

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

2017-04-18 Thread PJ Welsh
Just to note, the same pattern happens on C7: "CentOS Linux, with Xen hypervisor" = reboot "CentOS Linux (4.9.20-26.el7.x86_64) 7 (Core)" = boot [root@XXX ~]# uname -a Linux XXX 4.9.20-25.el7.x86_64 #1 SMP Fri Mar 31 08:53:28 CDT 2017 x86_64 x86_64 x86_64 On Tue, Apr 18, 2017 at 8:36 AM, PJ

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

2017-04-18 Thread PJ Welsh
Apologies: I installed the newer -26 kernel and had not rebooted into it. The grub2 menu item should have been "CentOS Linux (4.9.20-25.el7.x86_64) 7 (Core)". I am currently restarting that remote affected system (unmodified grub2 entry first). Thanks PJ On Tue, Apr 18, 2017 at 8:39 AM, PJ Welsh