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RE: [Xen-devel] HVM vcpu hotplug (was: shutdown/reboot/sysrq/vcpu-set fr

To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: RE: [Xen-devel] HVM vcpu hotplug (was: shutdown/reboot/sysrq/vcpu-set from dom0 to HVM guest)
From: "Liu, Jinsong" <jinsong.liu@xxxxxxxxx>
Date: Fri, 3 Sep 2010 18:24:26 +0800
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Cc: Frédéric VANNIÈRE <frederic@xxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jeremy, Fitzhardinge <Jeremy.Fitzhardinge@xxxxxxxxxx>
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Thread-topic: [Xen-devel] HVM vcpu hotplug (was: shutdown/reboot/sysrq/vcpu-set from dom0 to HVM guest)
Stefano Stabellini wrote:
> On Fri, 3 Sep 2010, Liu, Jinsong wrote:
>> Some strange.
>> Stabellini, would you please tell me more clear?
>> How did you do the test? what command? and error log?
> Qemu doesn't receive the xenstore watch events properly.
> I think it might have something to do with the way xl implements

Yes, it seems a little bug in xl path :)

> vcpu-set, that is probably subtly different from the way xend does it.
> Anyway, the patch "qemu-xen: fix cpu hotplug" fixes the problem.

Yes, the patch is OK, but I think it no need to do so.
How about still keep old way, to watch 'common' cpu node?

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