I have a Pentium D 820 processor on an ASUS P5RD1-VM motherboard.
My kernel is compiled to support SMP and otherwise works without issue.
The problem I have is that the 2nd core does not seem to work.
This part of the dmesg output seems relevant:
CPU0: Intel(R) Pentium(R) D CPU 2.80GHz stepping 04
Booting processor 1/1 eip 2000
Inquiring remote APIC #1...
... APIC #1 ID: failed
... APIC #1 VERSION: failed
... APIC #1 SPIV: failed
CPU #1 not responding - cannot use it.
Total of 1 processors activated (5679.96 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=-1
Brought up 1 CPUs
Is this a sure sign of bad hardware or might there be some issue I have overlooked?