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List:       netbsd-port-amd64
Subject:    Re: >100K interrupts/s on IOAPIC 0 Pin 9
From:       "Greg A. Woods" <woods () planix ! com>
Date:       2007-09-16 14:32:59
Message-ID: m1IWvBH-000kmyC () most ! weird ! com
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At Tue, 11 Sep 2007 16:14:20 -0400, Thor Lancelot Simon wrote:
Subject: Re: >100K interrupts/s on IOAPIC 0 Pin 9
> 
> This is almost certainly an issue with the ACPI system-controller
> interrupt, which is misconfigured at boot time by many systems.
> There have been several efforts to add code to NetBSD to fix this
> but I don't believe any have been committed as each turned out to
> be not quite right in some way.

I don't know about Edgar's particular machine, but I do know that in
general the FreeBSD folks have managed to get ACPI working on a vastly
wider set of machines than NetBSD' ACIP will work on properly so it
would seem to me that there's valuable knowledge to be gleaned from
their efforts, if indeed perhaps even a good working implementation to
borrow directly from.  I wish I had the time to learn about ACPI and
then to study the FreeBSD code, but alas I do not.

-- 
						Greg A. Woods

H:+1 416 218-0098 W:+1 416 489-5852 x122 VE3TCP RoboHack <woods@robohack.ca>
Planix, Inc. <woods@planix.com>       Secrets of the Weird <woods@weird.com>

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