Re: [Xen-users] Restarting xend while domU are running

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Bertrand LUPART wrote:
> Hello,
>
> Story:
> - xend 3.2.1 crashed on Dom0 and didn't restarted (xend.log below)
> - DomU are still running
>
>
> Question:
> - Is it safe to restart xend while DomU are still running? Won't xend
> try to start allready running DomU and mess up stuff?
> - Is it safer to log into each DomU and shutdown it manually before
> restarting xend?
Due to a bug in the combination of Xen and kernel I've been running, 
I've often had to restart xend with guests running. The process had 
been :
guest 'hangs' with 100% CPU usage
stop xend
kill xenconsoled
start xend
guest 'comes back to life'

So I'd say it's generally safe - but *don't* stop/restart xenstored !

However, while playing around with Xen4.0, I did find a setting to 
"shutdown guests when stopping xend" - I haven't experimented yet as 
to how that affects the situation.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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