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RE: [Xen-devel] HVM with PV Drivers - Live Migration broken?

To: "Robert Dunkley" <Robert@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] HVM with PV Drivers - Live Migration broken?
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Thu, 22 Jan 2009 20:11:08 +1100
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Thread-topic: [Xen-devel] HVM with PV Drivers - Live Migration broken?
> Hi Everyone,
> 
> For some reason I cannot migrate HVMs using paravirt drivers. I have
> asked the user list but no one seems to know why.
> 
> Non para Windows and Linux HVMs migrate OK on my setup but systems
> running the Windows GPLPV drivers or Linux KMod paradrivers get stuck,
> the receiving Dom0 shows the domain in a paused state and the sending
> Dom0 show the domain with migrating- added to the beginning of the
name
> but it never completes.
> 
> I'm running Xen 3.3.0 on Centos 5.2 with DRBD 8.2.6 for shared
storage,
> NUMA enabled. The VMs will transfer live if I order the transfer very
> quickly after starting them (I presume this is because the PV drivers
> have not yet loaded). Is this likely a bug or some sort of
configuration
> issue?
> 

GPLPV has had an on-again off-again love affair with live migration. It
would likely be a bug except that you say that the Linux PV-on-HVM
drivers won't migrate either?

What version of GPLPV are you using?

James


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