* Re: RE : Clock is suddently ticking too fast ! [Kernel2.4.19-pre10-ac2, Intel]
[not found] <8B5E8461FFB6B44F85E3504A81AF3D9117616C@frparex01.fr.tiscali.com>
@ 2002-11-26 23:50 ` Alan Cox
2002-11-26 23:30 ` Rusty Lynch
0 siblings, 1 reply; 3+ messages in thread
From: Alan Cox @ 2002-11-26 23:50 UTC (permalink / raw)
To: Benoit GRANGE; +Cc: Linux Kernel Mailing List
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
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: RE : Clock is suddently ticking too fast ! [Kernel2.4.19-pre10-ac2, Intel]
2002-11-26 23:50 ` RE : Clock is suddently ticking too fast ! [Kernel2.4.19-pre10-ac2, Intel] Alan Cox
@ 2002-11-26 23:30 ` Rusty Lynch
0 siblings, 0 replies; 3+ messages in thread
From: Rusty Lynch @ 2002-11-26 23:30 UTC (permalink / raw)
To: Alan Cox, Benoit GRANGE; +Cc: Linux Kernel Mailing List
> 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
>
There is also the "Multiprocessor Specification" that talks about APIC.
You can get to the document from:
http://www.intel.com/design/pentium/datashts/242016.htm
> 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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^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <r1_1038354638.2534.76.camel@irongate.swansea.linux.org.uk>]
* Re: RE : Clock is suddently ticking too fast ! [Kernel2.4.19-pre10-ac2, Intel]
[not found] <r1_1038354638.2534.76.camel@irongate.swansea.linux.org.uk>
@ 2002-11-28 13:24 ` Bill Davidsen
0 siblings, 0 replies; 3+ messages in thread
From: Bill Davidsen @ 2002-11-28 13:24 UTC (permalink / raw)
To: Alan Cox; +Cc: Linux-Kernel Mailing List
On Wed, 27 Nov 2002, Alan Cox wrote:
> 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
That's interesting, I thought when the first APIC came out it was the one
on the CPU as stood for "Attached Processor Interrupt Controller" to
replace the 8259. Acronym overload?
> "noapic" says to run the box like an old IBM PC
--
bill davidsen <davidsen@tmr.com>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-11-26 23:50 ` RE : Clock is suddently ticking too fast ! [Kernel2.4.19-pre10-ac2, Intel] Alan Cox
2002-11-26 23:30 ` Rusty Lynch
[not found] <r1_1038354638.2534.76.camel@irongate.swansea.linux.org.uk>
2002-11-28 13:24 ` Bill Davidsen
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