SMP kernel but no SMP detected on Tyan S2515

[John Baldwin]

On Wednesday 16 November 2005 02:17 am, Mark Kirkwood wrote:
> This has me puzzled:
>
> I have a 2 cpu S2515 that has had SMP added to the kernel - however upon
> reboot the 2nd cpu is not detected (It is detected by the BIOS BTW). I
> see the following in the verbose dmesg:
>
> APIC: Could not find any APICs.
>
> I am guessing that it is turned off in the BIOS (???), if so, I've no
> idea where it is (AMIBIOS is my least favorite...).
>
> I have enclosed a verbose dmesg and my kernel differences from GENERIC
> plus the (non-existent) output from mptable.
>
>
> Any ideas appreciated.

You're going to need to fiddle with the BIOS until mptable(8) finds a valid MP 
Table.  The kernel relies on the MP Table to enumerate CPUs and route 
interrupts.  You can also try enabling ACPI if your machine supports ACPI.

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