RE: [Xen-devel] [PATCH] rombios: pause for a keypress after a failedboot

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> 
> On 07/07/2010 02:43, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
wrote:
> 
> >> rombios: inform the user and pause for a keypress after a failed
boot
> >> rather than powering off immediately.
> >>
> >
> > That's a great idea for many situations, but not for all. If the
DomU
> > fails to boot (eg because the drbd backing store is offline or
> > something) it would be nice to have the domain exit so that
monitoring
> > can kick in and alert someone, rather than it just sitting there in
a
> > running state waiting for user input that might never come.
> >
> > I know it's probably a heap more work, but could the behaviour be
driven
> > by a config file setting? Otherwise this new behaviour is going to
be a
> > regression.
> 
> Simply pausign for a few seconds might be nice. Gives enough time for
a user
> to see what is going on, but doesn't leave an unattended VM hanging
around
> forever?
> 

That would certainly be much easier in terms of programming effort, and
fulfils most of my concerns.

What criteria does xend use to determine if a domain is in a reboot
loop? Is it just a single restart within some number of seconds, or is
it a certain number of reboots in a certain number of seconds?

Thanks

James

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