Re: [Xen-users] Cannot start domains after FC6->F7 upgrade

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> > Did you reboot with the new Xen kernel? Or did you pull your kernel or
> > assemble it form elsewhere?
>
> Yes.  Standard xen kernel.  But had to use the FC6 xen kernel because
> the F7 xen kernel crashes on our hardware.
>
> > My local mirror does not have FC7 yet, so I haven't been able to play
> > with it.
>
> I've opened a Fedora bug:
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246169

Chiming in here; I don't have a RH bugzilla account.

The matching rules for kernel / tools / xen versions are a bit complex.  The 
userspace tools and Xen itself must *always* be matched.

Since around 3.0.4 (I think?) it's been possible to mix and match dom0 kernel 
versions.  i.e. any dom0 kernel since 3.0.4 should run on any Xen from 3.0.4.  
Before that release the dom0 and Xen interfaces were tied together and you 
couldn't really mix and match /at all/.  Although you couldn't strictly mix 
and match, you could sometimes get dom0 to boot on Xen, but things didn't 
work properly - this may be what you're seeing, I guess.

Could you rebuild your kernel to not use libata?

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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