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xen-users
Re: [Xen-users] Windows PV driver live-migration support
On Thu, Nov 12, 2009 at 6:00 PM, James Harper
<james.harper@xxxxxxxxxxxxxxxx> wrote:
>>
>> Is anyone working on live-migration support for Windows PV domains? I
>> am a developer, and I am evaluating the possibility of improving upon
>> the Windows drivers.
>>
>> I installed a recent copy of the PV drivers (0.10.0.130) from the
>> installation packages pointed at in the wiki
>> (http://wiki.xensource.com/xenwiki/XenWindowsGplPv) and was not able
> to
>> get a Windows 2003 domain to properly restore after a migration.
> There
>> were numerous popup boxes on the console about not being able to
> remove
>> devices, etc. I also found some verbiage in
>> win-pvdrivers.hg/doc/TODO.txt (cloned from the repository) which
>> indicated that this support wasn't completed (yet). I am not quite
> sure
>> what my expectations should be.
>>
>> Is there any documentation for this code or a project-plan which I can
>> consult? I didn't find anything on the wiki that would help me answer
>> my questions about what is or isn't supported and what is being
> actively
>> worked on (and by whom).
>>
>> Apologies in advance if I'm asking newbie questions that have already
>> been asked and answered. If you can point me to any useful threads on
>> this subject, please do so.
>>
>
> That particular problem should be fixed in 0.10.0.134. There may be
> other bugs that stop it working but that one at least should be fixed.
>
Charlie,
There are reports of recent gplpv drivers supporting live migration on
old xen versions. Some changes in xen 3.4 broke gplpv live
migration/restore functionality. There is a workaround but it has not
been applied.
More info:
http://lists.xensource.com/archives/html/xen-users/2009-10/msg00978.html
http://lists.xensource.com/archives/html/xen-devel/2009-09/msg01095.html
Keith Coleman
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