Messages in this thread | | | Date | Wed, 1 Mar 2006 20:09:53 -0500 | From | Dave Jones <> | Subject | Re: 2.6.16rc5 'found' an extra CPU. |
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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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