On Wed, Sep 20, 2006 at 08:54:28AM -0400, James Bottomley wrote:
> On Wed, 2006-09-20 at 09:00 +0200, Andi Kleen wrote:
> > boot CPU == 0 should be true. You just can't assume anything about its
> > APIC ID, but we decouple APIC ID and logical processor id anyways.
> 
> No, it is not.  Voyager has fixed and immutable CPU IDs dependent on CPU
> position in the system.  If CPU 0 is missing or logically deconfigured,
> the boot CPU is definitely non zero.

As APIC ID (hard_smp_processor_id()) possible, but surely not as linux logical
 processor id (smp_processor_id()). That always starts with 0 and goes up.

-Andi

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