On Fri, 5 Sep 2003, Thor Lancelot Simon wrote:

> Since upgrading to 1.6W, some of my systems have been much slower.  I
> just realized that the ACPI SCI is interrupting 60,000 times per second
> on one of them and 90,000 times per second on another.  One system is
> an AMD760MPX-chipset motherboard, the other is a very similar AMD760MP
> chipset board.
>
> On another note, given the current "systat vmstat" display on i386 it is
> quite difficult to conclusively say just _what_ is causing a given
> interrupt.  Systat prints out things like "ioapic0 pin 9" but the device
> probe lines print out "apicN pin M" and irq only, not which ioapic and
> which ioapic pin -- and ACPI doesn't even print that.
>
> Here's the dmesg from the system that's showing 90,000 interrupts/sec
> on pin 9:

	Do you have 'options MPBIOS' or 'options MPACPI'. The former caused
	a very similar problem for me when I enabled acpi0 on a Dell SMP box.
	(in UP or SMP mode)

-- 
		David/absolute          -- www.netbsd.org: No hype required --