Re: [Xen-users] Live-migration doesn't work to Windows guest

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Nov 06, 2009 at 02:10:06PM -0200, Edson Marquezani Filho wrote:
> On Fri, Nov 6, 2009 at 12:59, Thiago Vinhas <thiago@xxxxxxxxxxxxxxxx> wrote:
> > What did you do to enable it?
> >
> 
> Nothing. Just remember that I'm using hypervisor 3.1.X, from RHEL, not
> the newest one (3.4.1), which, according to what James sayd, has
> problems with PVDrivers on migration.
> 
> What I can say is that with RHEL Xen packages (hypervisor 3.1.2 and
> kernel 2.6.18), migration for Windows guests with GPLPV Drivers works
> just fine. I have seen no problems so far, in my tests.
> 
> (The original issue was because HVM support was not enabled on BIOS. Just it.)
> 

Yeah, there was some changes in Xen 3.4.x, and those cause the migration to
fail with GPLPV drivers. GPLPV migration works with earlier Xen versions.

Oracle developers confirmed the workaround makes their Windows PV drivers 
work ok with Xen 3.4.x:
http://lists.xensource.com/archives/html/xen-devel/2009-09/msg00667.html

And:
http://lists.xensource.com/archives/html/xen-devel/2009-09/msg00727.html

So hopefully James will include the same workaround in GPLPV :)

-- Pasi


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