Re: 2.6.16rc5 'found' an extra CPU.

[Ashok Raj]

On Thu, Mar 02, 2006 at 02:38:31AM +0100, Andi Kleen wrote:
> 
> > ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> > Processor #0 15:5 APIC version 16
> > ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
> > Processor #1 15:5 APIC version 16
> > ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
> > ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
> 
> It's because of the two disabled CPUs. We decreed at some point
> that disabled CPUs mean hotpluggable CPUs. But it's doing
> this for some time so you probably only noticed now.
> 
> All is ok. Sorry for blaming you wrongly, Ashok.


Phew!..

The ACPI hotplug code isnt in 2.6.15-rc* yet. It should be in the next
-mm when Andrew rolls the next mm.

But the 3 entries seem weird, we should only see 2 sysfs entries in 
/sys/devices/system/cpu and just 2 entries in proc/acpi/processor as well.



-- 
Cheers,
Ashok Raj
- Open Source Technology Center
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/