Re: RE : Clock is suddently ticking too fast !

Alan Cox (alan@lxorguk.ukuu.org.uk)
26 Nov 2002 23:50:38 +0000

On Tue, 2002-11-26 at 20:22, Benoit GRANGE wrote:
> Alan Said:
> > Does this stop if you boot with "noapic"
> I will try, but the clock frenzy happens only once every full moon...
> it won't be easy to tell.
> By the way, can you refer me to some nice documents explaining what is apic ?
> Regards,
> Benoit Grange

Old IBM PC has PIC (peripheral interrupt controller) - does the 16 IRQ
lines and attaches them to the CPU

Modern PC also as APIC (advanced peripheral interrupt controller) which
is in two parts - locsl apic is on the CPU, and talks over a link to one
or more io-apics that attach to the devices on the bus

"noapic" says to run the box like an old IBM PC

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