Re: [Xen-users] xen-4.4.0 and unexpected system reboot

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Sat, 2014-06-21 at 15:49 -0400, squidmobile@xxxxxxxxxxx wrote:
> 21 jun 2014
> 
> greetings,
> 
> i saw something odd the other day, and i'm not sure what to make of
> it.
> 
> i ran xen-4.4.0 on my system for over 45 days with no problems.
> my system then suddenly rebooted itself.  my logs acted almost
> as if a power interruption happened, except i run a ups with
> nut, and the logs showed no sign of any nut activity.  plus, the
> ups did NOT scream at me.
> 
> i sometimes see nut broadcast messages talking about losing or
> regaining contact with the ups daemon, but i (mostly) attribute
> those to ntp time adjustments and/or heavy cpu loading.
> 
> i sometimes run heavy cpu-intensive and/or graphics-intensive
> tasks in domain zero, but i never saw them cause this in about
> eighteen months of running xen in several versions.
> 
> has anyone else seen this?  is it xen-related?

It's rather hard to say based on the available information I'm afraid.
All I can suggest is that you configure a serial console or something so
that if it happens again you have some logs. You might find something
in /var/log/ on the dom0, but it seems unlikely.

> 
> right now, it's an anomoly.  i hope it does not happen again, but
> i'm hoping for ideas as to why.
> 
> any questions, comments, or suggestions?
> 
> thank you.
> frank smith
> 



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