On Wed, Aug 29, 2007 at 02:09:11PM -0400, Bill Sommerfeld wrote:

> >     On shutdown, we ask xend to shutdown all running domains and wait for 
> > this
> >     to complete (timing out after 6 minutes if no further progress is being
> >     made).
> 
> where did "6 minutes" come from?  existing practice in the open-source
> hypervisor code? 

After 5 minutes, xend will log a message that the domain is unresponsive and
mark it as such in the domain store.  Previous/other versions of Xen would kill
the domain at the 5-minute mark. So the 6 minutes is previous behaviour plus a
little bit of slop.

> >    As a result, we feel that the
> >     interfaces described here are best represented by a classification of
> >     Volatile:
> 
> I'd think the interface that needs to be stable is the one for marking
> domains as autoboot

This interface comes from upstream and is thus subject to the same rules as
described in the umbrella Xen case.

regards
john

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