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

from [Stefano Stabellini] [Permanent Link][Original]
To: "Liu, Jinsong" <jinsong.liu@xxxxxxxxx>
Subject: RE: [Xen-devel] HVM vcpu hotplug (was: shutdown/reboot/sysrq/vcpu-set from dom0 to HVM guest)
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Fri, 3 Sep 2010 11:18:40 +0100
Cc: Frédéric VANNIÈRE <frederic@xxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jeremy, Fitzhardinge <Jeremy.Fitzhardinge@xxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
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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
vcpu-set, that is probably subtly different from the way xend does it.
Anyway, the patch "qemu-xen: fix cpu hotplug" fixes the problem.

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