Messages in this thread | | | From | Andi Kleen <> | Subject | Re: x86_64: up to 255 or 256 CPUs? | Date | Tue, 20 Feb 2007 10:35:38 +0100 |
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On Tuesday 20 February 2007 01:42, William Lee Irwin III wrote: > On Tue, Feb 20, 2007 at 01:06:47AM +0100, Adrian Bunk wrote: > > Quoting arch/x86_64/Kconfig: > > <-- snip --> > > ... > > config NR_CPUS > > int "Maximum number of CPUs (2-256)" > > range 2 255 > > ... > > <-- snip --> > > cu > > Adrian > > The broadcast APIC ID clashes with the 256th cpu.
Yes 255 is theory. But we don't know if it actually works anyways because it has been never tested.
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