Re: [Xen-devel] Live migration from Xen 3.1.2 to 4.2.3 doesn't work

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Nov 13, 2013 at 08:28:10PM +0000, Ian Campbell wrote:
> On Wed, 2013-11-13 at 19:02 +0000, Jim Durand wrote:
> > See log errors below, trying to live migrate VM's from Xen 3.1.2 ->
> > Xen 4.2.3. Perhaps we cannot live migrate across major revs?
> 
> See http://wiki.xen.org/wiki/Xen_Version_Compatibility. Normally only N
> to N+1 is supported. So 3.4.x->4.0.x was supported and 4.1.x->4.2.x is
> supported etc.
> 
> 3.1.2 to 4.2 represents something like 5 releases, I'm afraid that is
> not supported.
> 
> Apart from any issue with migration 3.1.2 is ancient (6 years tomorrow!
> ), I'm afraid it is no longer supported here.
> http://wiki.xen.org/wiki/Xen_Maintenance_Releases
> 

I'm guessing Xen 3.1.2 in this case is RHEL5 Xen,
which is not really 3.1.2 .. it has tons of backports from later Xen versions..

But yeah, live migration from it to recent upstream Xen is not very likely to 
work..
At least it hasn't been tested by upstream Xen developers.

-- Pasi


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