SMP on Compaq DL380

[Nate Lawson]

Andre Guibert de Bruet wrote:
> 
> On Sun, 24 Apr 2005, Matthew Sullivan wrote:
> 
>> Andre Guibert de Bruet wrote:
>>
>>> Processors:     APIC ID Version State           Family  Model   Step 
>>> Flags
>>>         0       0x10    BSP, usable     6       2       1       0x0381
>>>         0       0x10    AP, usable      6       8       6       
>>> 0x383fbff
>>>
>>> The APIC IDs here are the same. The flags on the would-be AP are what 
>>> I would expect for a recent i686. The BSP barely qualify it to be a 
>>> gen-1 Pentium. I wouldn't trust any of the values being reported. 
>>> Could you obtain the real identity of these CPUs and confirm that 
>>> they're not mismatched? The easy way of doing this if your BIOS 
>>> doesn't post this information is using a Knoppix LiveCD and doing a 
>>> cat /proc/cpuinfo.
>>
>>
>> Ok can't do the knoppix thing atm, however...
>>
>> CPU0 -> 866/256/133/1.65v SL47S
>> CPU1 -> 866/256/133/1.70v SL48V
>>
>> Both are shown detected by the BIOS, and both are shown as 866MHz 
>> 133MHz busses, and 256k cache (as one would expect)
>>
>>> If both CPUs are reporting the same ID, I can see how we're not 
>>> launching the second proc; We assume that ID 0 is the BSP and 
>>> additional processors have different APIC IDs. Is something really 
>>> borked here? Yep!
>>
>>
>> But the acpidump -t shows 2 different ID's....
> 
> 
> I don't know the way our ACPI implementation handles the information 
> found in the tables well enough to be able to tell you exactly what we 
> do with the IDs that are found in that dump. That's Nate Lawson's domain 
> (I added him to the CC-list).

I'd like to see the acpidump -t -d > matthew.asl

There definitely is a problem when you have identical APIC ids.  We 
already blacklist one version of this BIOS.

-- 
Nate