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SubjectRe: 2.6.16rc5 'found' an extra CPU.
On Wed, Mar 01, 2006 at 07:55:25PM -0500, Chuck Ebbert wrote:
> In-Reply-To: <20060301230317.GF1440@redhat.com>
>
> On Wed, 1 Mar 2006 18:03:17, Dave Jones wrote:
>
> > (17:59:38:davej@nemesis:~)$ cat /sys/devices/system/cpu/cpu0/topology/core_siblings
> > 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
> > (17:59:47:davej@nemesis:~)$ cat /sys/devices/system/cpu/cpu1/topology/core_siblings
> > 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000002
> >
> > Neither of these CPUs are HT / dual-core, so shouldn't these be the same ?
>
> Those are bitmaps. 1 => only bit 0 is set => CPU 0 is all alone.
>
> Did you really build a 256-CPU SMP kernel or is ACPI ignoring CONFIG_NR_CPUS
> or something?

Yes, it's =256.

Dave

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