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    SubjectRe: PCI power management
    Benjamin Herrenschmidt wrote:
    > - On SMP, we need some way to stop other CPUs in the scheduler
    > while running the last round of sleep (putting devices to sleep) at least
    > until all IO layers in Linux can properly handle blocking of IO queues
    > while the device sleeps.

    I think either Rusty or Anton wrote code to enable and disable CPUs...

    CPU hotplugging but it would be useful for PM too.

    Jeff Garzik | "The universe is like a safe to which there is a
    Building 1024 | combination -- but the combination is locked up
    MandrakeSoft | in the safe." -- Peter DeVries
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