similar to: Xen C6 kernel 4.9.13 and testing 4.9.15 only reboots.

On 03/20/2017 11:21 AM, Johnny Hughes wrote: > On 03/20/2017 08:35 AM, PJ Welsh wrote: >> Updating my CentOS 6.8 Xen server with new 4.9.13 kernel yields a kernel >> boot message of a few like "APIC ID MISMATCH" and the system reboots >> immediately without any other bits of info. This is on a Dell R710 with >> 64GB RAM and 2x 6-core Intel CPU's. >>

On 03/20/2017 01:20 PM, PJ Welsh wrote: > No warning, but still just reboots with no notice. > Is there any other system info you need? > Thanks > PJ > Try the new 4.9.16-24 packages there now. (reworked the config based on a fedora kernel) > On Mon, Mar 20, 2017 at 11:47 AM, Johnny Hughes <johnny at centos.org > <mailto:johnny at centos.org>> wrote: >

El Lunes 20/03/2017, PJ Welsh escribi?: > Still just starts the kernel and wihtin 4 seconds reboots with 4.9.16-24. > Thanks > PJ Edit grub's entry and add "noreboot" to your xen parameters, maybe when the kernel panicks xen detects it and automatically reboots it. > On Mon, Mar 20, 2017 at 2:23 PM, Johnny Hughes <johnny at centos.org> wrote: > > On

On Tue, Apr 4, 2017 at 11:13 AM, Johnny Hughes <johnny at centos.org> wrote: > 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

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

On 04/18/2017 12:39 PM, PJ Welsh wrote: > 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 issue! I've rebooted 3

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. On Wed, Mar 22, 2017, 6:27 AM PJ Welsh <pjwelsh at gmail.com> wrote: > The last few lines are > NMI watchdog: disabled CPU0 hardware events not enabled > NMI watchdog:

On 03/21/2017 07:48 AM, PJ Welsh wrote: > On Mon, Mar 20, 2017 at 5:21 PM, Ricardo J. Barberis > <ricardo at palmtx.com.ar <mailto:ricardo at palmtx.com.ar>> wrote: > > El Lunes 20/03/2017, PJ Welsh escribi?: > > Still just starts the kernel and wihtin 4 seconds reboots with 4.9.16-24. > > Thanks > > PJ > > Edit grub's entry

On 04/19/2017 12:18 PM, PJ Welsh wrote: > > On Wed, Apr 19, 2017 at 5:40 AM, Johnny Hughes <johnny at centos.org > <mailto:johnny at centos.org>> wrote: > > On 04/18/2017 12:39 PM, PJ Welsh wrote: > > Here is something interesting... I went through the BIOS options and > > found that one R710 that *is* functioning only differed in that

On 03/20/2017 08:35 AM, PJ Welsh wrote: > Updating my CentOS 6.8 Xen server with new 4.9.13 kernel yields a kernel > boot message of a few like "APIC ID MISMATCH" and the system reboots > immediately without any other bits of info. This is on a Dell R710 with > 64GB RAM and 2x 6-core Intel CPU's. > As an additional test, I installed and attempted to run the current

Good news/bad news testing the new kernel on CentOS7 with my now notoriously finicky machines: Good news: 4.9.23-26.el7 (grabbed today via yum update) isn't any worse than 4.9.13-22 was on my xen hosts (as far as I can tell so far at least) Bad news: It isn't any better than 4.9.13 was for me either, if I don't set vcpu limit in the grub/xen config, it still panics like so: [

Still just starts the kernel and wihtin 4 seconds reboots with 4.9.16-24. Thanks PJ On Mon, Mar 20, 2017 at 2:23 PM, Johnny Hughes <johnny at centos.org> wrote: > On 03/20/2017 01:20 PM, PJ Welsh wrote: > > No warning, but still just reboots with no notice. > > Is there any other system info you need? > > Thanks > > PJ > > > > > > Try the new

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

No warning, but still just reboots with no notice. Is there any other system info you need? Thanks PJ On Mon, Mar 20, 2017 at 11:47 AM, Johnny Hughes <johnny at centos.org> wrote: > On 03/20/2017 11:21 AM, Johnny Hughes wrote: > > On 03/20/2017 08:35 AM, PJ Welsh wrote: > >> Updating my CentOS 6.8 Xen server with new 4.9.13 kernel yields a kernel > >> boot

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 <pjwelsh at gmail.com> wrote: > Just to note, the same pattern happens on C7: >

I've not gotten any bites from my posting on the xen-devel mailing list. Here is the only one to-date: https://lists.xen.org/archives/html/xen-devel/2017-04/msg01069.html >From that email, there needs to be some hypervisor messages. Does anyone know how to produce the hypervisor messages? I've already removed the rhgb and quiet options from the boot. Thanks PJ On Thu, Apr 6, 2017 at

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

On Wed, Apr 19, 2017 at 5:40 AM, Johnny Hughes <johnny at centos.org> wrote: > On 04/18/2017 12:39 PM, PJ Welsh wrote: > > 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

On 03/28/2017 02:55 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

Hummmm, seems there are still stability issues on the "4.9.2-26.el7.x86_64", recently hear many issue related to Supermicro board! :-( Peace!!! On Fri, Apr 21, 2017 at 9:40 AM, Anderson, Dave <daveanderson at wsu.edu> wrote: > Good news/bad news testing the new kernel on CentOS7 with my now > notoriously finicky machines: > > Good news: 4.9.23-26.el7 (grabbed today