Re: [Xen-users] Spontaneous reboots stock Xen 4.4 on Debian Jessie

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On Sun, Jul 3, 2016 at 10:37 PM, Jan Bakuwel <jan.bakuwel@xxxxxxxxx> wrote:
> Hi there,
>
> I have two Dell T420's, 32GB, RAID6 array, running an up-to-date Debian
> Jessie stock with stock drbd, lvm and Xen (4.4) running a number of
> Windows and Linux guest VMs. Everything works fine ... until the server
> spontaneously reboots. Nothing in the xen logs, nor in syslog, as if
> someone pressed the reset button.
>
> Any suggestions where I should start digging?

Have you got a serial console hooked up?

http://wiki.xenproject.org/wiki/Xen_Serial_Console

For these kinds of reboots, catching it in the act is usually the only
way to figure out what was going on; and having the output of a serial
console is the most reliable way to catch the output as it died.

 -George

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