Re: linux dom0 versus NetBSD dom0

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Jan 12, 2012 at 12:29:12PM +0000, Hugo Silva wrote:
> On 01/12/12 08:58, Manuel Bouyer wrote:
> > On Wed, Jan 11, 2012 at 04:28:58PM -0800, Brian Buhrow wrote:
> >>    Hello Manuel et al.  Two features I think we're interested in, but
> >> which I don't know much about, are the balloon driver and the virtual
> >> machine migration tool.  That is, the ability to move virtual machines from
> >> one physical machine to another, assuming we've got the storage issues for
> >> those virtual machines worked out.  Can anyone address the state of those
> >> features on NetBSD versus Linux?
> > 
> > migration and suspend/resume are basically the same (migration is just
> > suspend on one dom0, resume on another one). domU suspend/resume support
> > is present in HEAD (and will be in netbsd-6), but there is currently
> > one bug left, which is hard to find ...
> 
> Care to elaborate?

jym%netbsd.org@localhost can probably tell more, but he's very busy these days.
The problem seems to be a memory corrution on the domU side in the
front/back ring of the block device. 

> 
> >From the insane-sysadmins-running-current-dom0s-in-production, anything
> that could be done to help here?

It's probably tricky to debug ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--