Re: [Dumb question] 100k RTC interrupts/sec on SMP system: why?
From: Len Brown
Date: Thu Jan 04 2007 - 14:45:47 EST
On Friday 10 November 2006 08:43, Arjan van de Ven wrote:
> On Fri, 2006-11-10 at 16:35 +0300, Paul P Komkoff Jr wrote:
> > Replying to Arjan van de Ven:
> > > Also have you tried acpi=off or the linux firmware test kit (see url in
> >
> > acpi=off fixed this.
> > 8: 1 0 IO-APIC-edge rtc
> acpi=on had this
>
> > 8: 3673166897 3674697116 IO-APIC-level rtc
>
> spot the level-vs-edge difference.... your acpi interrupt routing looks
> bust.
>
>
> > So I got rid of "interrupt storm" but what I've lost (except poweroff)?
>
> you can get power off with APM as well.
Servers don't have APM.
It seems this is an additional sighting of this BIOS bug:
http://bugzilla.kernel.org/show_bug.cgi?id=7679
(perhaps you can note that in the bug report)
pnpacpi=off should be a sufficient workaround for now.
thanks,
-Len
ps. there is nothing dumb about this question:-)
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