IGNORE: Logical CPU's not being picked up on dual 2.0 Xeon system.

[John Baldwin]

On 09-Dec-2003 John Stockdale wrote:
> Realized that hyperthreading is working, but only 1 physical cpu is  
> being picked up.
> 
> Gonna troubleshoot this one and get back to the list if I can't figure  
> it out.
> 
> Sorry for the errant email

Nope. APIC Id's are 0 and 6.  Logical CPUs are contiguous, i.e. 0 and 1
and 6 and 7.  If you aren't using ACPI and you have enabled HTT in your
BIOS, you now need to use 'options MPTABLE_FORCE_HTT' to enumerate logical
CPUs when not using ACPI.

>> CPU: Intel(R) Xeon(TM) CPU 2.00GHz (1999.44-MHz 686-class CPU)
>>   Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
>>    
>> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG 
>> E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>>   Hyperthreading: 2 logical CPUs
>> real memory  = 1073217536 (1023 MB)
>> avail memory = 1033175040 (985 MB)
>> MPTable: <  PLACER CRB  >
>> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>>  cpu0 (BSP): APIC ID:  0
>>  cpu1 (AP): APIC ID:  6

-- 

John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/