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SubjectRe: [Xen-devel] [PATCH] xen/cpu: Make VCPU hotplug code online CPUs properly.
On Fri, 2012-02-10 at 14:43 +0000, Konrad Rzeszutek Wilk wrote:
> Offlining CPUs works. Onlining does not work anymore and it looks
> like we were missing a cpu_up() call in the hotplug bring up path.

Wasn't this a deliberate decision as part of the pvops upstreaming to be
consistent with native cpu hotplug? After hotplugging a CPU
administrator action is needed to actually online it.

The fix is to add a udev rule:


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