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xen-users
Re: [Xen-users] Hibernation
> > I am a bit scared that this might cause problems within the affected
> > OS because after restore, the system clock will show a great leap.
>
> IMHO, it would be really weird for an OS, apps or anything to
> seriously freak out if the clock leaped. I mean, does your computer
> crash a daylight savings? What about when you just set the clock by
> hand? If that breaks your OS or apps, you've got bigger problems.
Well, if apps break they're arguably badly written. Not that we can probably
rule that out ;-) But I wouldn't expect big problems with this; as Dylan
quite rightly points out there are lots of circumstances when the clock can
change unexpectedly.
The case of suspend / resume is a little different, in that if you suspend an
OS to disk and then resume it later without telling it it /could/ conceivably
confuse the OS, which might not expect time to suddenly change underneath it.
For PV, this is fine. For HVM... well I assume it works somehow ;-) I'm
just not sure how it's currently implemented or if it could maybe be improved
by making the guest OS more aware of the suspend process.
Cheers,
Mark
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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