Re: [Xen-users] domU shutdown as (null)

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Fri, 2017-08-04 at 18:29 +0200, Valentin Vidic wrote:
> On Fri, Aug 04, 2017 at 04:21:01PM +0200, J. Roeleveld wrote:
> > Yes, I see this all the time.
> > Don't often restart VMs myself, especially not the big ones. So it
> > doesn't 
> > affect me as much.
> > 
> > I think it is possible to disable the memory-scrubbing. Which
> > should speed 
> > this up. But then the new VM can see the memory-content of the
> > previous VM. 
> > (potential security-risk)
> 
> Thanks for confirming. While I don't mind the scrubbing, the cluster
> manager (Pacemaker) notices the machine name is gone and tries to
> restart it. This than fails with that Out of memory error. Not sure
> if there is a way around this other than restarting these big
> machines
> manually?
> 
Just FYI, we're working on improving this.

Basically, memory will be left unscrubbed when destroying the domain.
It will be scrubbed afterwords, in batches, during system idle time, or
when necessary.

This is the latest version of the patch series:
https://www.mail-archive.com/xen-devel@xxxxxxxxxxxxx/msg117353.html

Hopefully, it will be included in Xen 4.10.

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
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Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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