On Fri, 26 Jan 2001, James Mastros wrote:
> Thanks, that was very clarifing. However, not all procesors, apparently,
> have LAPICs. On my system, with IOAPIC and LAPIC support enabled, the
> kernel creates a fake LAPIC.
[snip]
> The odd part is that I've got an Athlon 750 -- by no means an old CPU.
Unlike the single-processor x86 core, intel somehow managed to get its SMP
specification to be protected by some sort of copyright thing. I'm
ignorant of the details. However, I do know that the implication is that
only Intel can make Intel-SMP-spec-compatible CPUs. You can't stick AMD
CPUs into an Intel SMP motherboard, it won't work.
AMD processors, just like the have 3dnow to replace mmx, have their own
SMP system to replace Intel's SMP spec (OpenSMP or something?) Thus, it
doesn't surprise me that your athlon doesn't have a LAPIC.
-- Ramon
