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    SubjectRe: [PATCH 0/7] KVM: Suspend and cpu hotplug fixes
    On Thu, 2007-05-24 at 20:10 +0800, Avi Kivity wrote:
    > The following patchset makes kvm more robust wrt cpu hotunplug, and
    > makes suspend-to-ram actually work. Suspend-to-disk benefits from
    > the cpu hotunplug improvements as well.
    > The major issue is that KVM wants to disable the virtualization
    > extensions at a point in time when no user processes are schedulable
    > on the victim cpu. No current notifier exists, so a new one,
    > CPU_DYING,
    > is added for the purpose.
    > Should there be no objections, I will submit this patchset for
    > inclusion
    > in 2.6.22, and backport it to 2.6.21.stable.
    Is it possible disabling kvm can be done at the begining of play_dead?
    take_cpu_done is designed to run fast.

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