number of CPUs and IPI panic

[John Baldwin]

On Thursday 11 November 2004 05:02 pm, Ketrien I. Saihr-Kesenchedra wrote:
> Nik Azim Azam wrote:
> >--- Stephan Uphoff <ups at tree.com> wrote:
> >> OK - now we have to play the thousand questions game
> >>
> >>;-)
> >>
> >>This happens after the system is up?
> >>Can you send me the startup messages (With verbose
> >>enabled)? Are there known issues with other operating systems?
> >>Do you have a serial console / serial line for gdb / firewire for
> >> debugging ?
> >>
> >>If I read your first posting correctly you have 6 pentium II overdrive
> >> processors in your system (overdrive = PII with PPRO pinout).
> >>Can you supply information about the vendor / chipset of your system?
>
> We have a very big problem here though; we're detecting 7 processors.
> The ALR has a LOT of on-board logic. Handling it is very tricky; these
> things required a special version of Windows NT or SCO, as I recall. We
> should only be detecting 6 CPUs; we may be erroneously accepting part of
> the bridging logic as a processor. (ISTR that the CPU board bridge
> appears very similar to a processor.) I think an mptable dump would be
> very helpful here; I'm wondering if we're not letting the board fake us
> out with bridge logic presenting as a processor.

It's only finding 6 processors, but the local APIC IDs are 0, 1, 2, 4, 5, and 
6.  I'm guessing that the I/O APIC is using APIC ID 3.

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