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We could use QEMU to test it, but even that it is known not to > >> work. > > > > I think this last sentence is ambiguous. QEMU ACPI CPU hotplug > > implementation does work AFAIK, it's Xen implementation of ACPI > > hotplug that explodes (or so I've been told). I would drop or reword > > the "but even that it is known not to work." part of the sentence. > > Maybe simply add "... on our end"? WFM. Thanks, Roger.