> > Hey, what's the problem with reprogramming the 8259s so that IRQ8 were
> > the highest priority interrupt?
>
> We don't actually use the 8259 as a clock source on some machines already.
> The APIC is far nicer
Yeah I've noticed this some time ago, but I believe that machines which
have a local APIC installed and operating are still less common than these
which do not. Not even counting all these non-ia32 platforms (of which
some are equipped just with an RTC and no other timers).
Doesn't the APIC timer need compensation as a clock source, btw? Intel
docs claim that it loses half a tick every cycle on certain chips.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html