Messages in this thread | | | Date | Fri, 10 Oct 2003 10:48:37 -0400 | From | Mark Mielke <> | Subject | Re: 2.7 thoughts |
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On Fri, Oct 10, 2003 at 07:47:23AM -0700, William Lee Irwin III wrote: > On Fri, Oct 10, 2003 at 04:35:29PM +0200, G?bor L?n?rt wrote: > > Why? Sure, you should note OS before unplug a CPU ;-) but in this case OS > > should be noticed that it could not use that CPU any more (like scheduler, > > interrupt delivering etc). And then it's not an issue if you unplug THAT > > cpu. Sure, some hw supporting is needed, a "normal" motherboard does not > > like to unplug a CPU when powered of course by hardware issues, but "CPU > > hotplug capable" motherboards can support this. Maybe of course some notice > > mechanism is needed for the motherboard as well not only for the OS, but it > > only mean that notfication before unplugging the CPU should be delivered to > > the OS _and_ to the hardware. Sure, I have no experience at all in this
Perhaps I've naive here, but - with hot-pluggable CPU machines, do you not de-activate the CPU through software first, before pulling the CPU out, at which point it is not in use?
mark
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