On 6/27/07, Stuart Henderson <[EMAIL PROTECTED]> wrote: > > On 2007/06/26 21:42, John Nietzsche wrote: > > I believed when openbsd kernel took control, it did not matter the bios > > stuff. > > that's not correct, the kernel has to pull information from the BIOS > about multiprocessor setup, interrupt routing, etc. > > there are different ways of getting this - MP tables and ACPI. > some BIOS have bogus information in one or other of these. sometimes > this gets fixed in newer BIOS revisions. > > not directly for the multiprocessor side of things, but this paper > has some information about MP/ACPI and might be interesting to people > who want to learn about interrupts on x86: > > "PCI Interrupts for x86 Machines under FreeBSD" > http://people.freebsd.org/~jhb/papers/bsdcan/2007/article/article.html > > (much of it applies to any OS). > > Definately update your BIOS to the latest version. I remember when the X2 series came out there were some very weird issues with certain motherboards such as only one core even showing up or being utilized, even if the board claimed to recognize two cores properly.
