Date: Wed, 01 Sep 1999 15:51:11 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: Mike Smith <mike@smith.net.au>, Warner Losh <imp@village.org>, nate@mt.sri.com (Nate Williams), Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org>, mmuir@es.co.nz, freebsd-current@FreeBSD.ORG Subject: Re: followup to apm problems. Message-ID: <35950.936193871@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 01 Sep 1999 09:45:38 EDT." <199909011345.JAA05781@khavrinen.lcs.mit.edu>
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In message <199909011345.JAA05781@khavrinen.lcs.mit.edu>, Garrett Wollman writes: ><<On Tue, 31 Aug 1999 15:16:48 -0700, Mike Smith <mike@smith.net.au> said: > >> Actually, that's almost entirely system-dependant. The BIOS may well >> poll the keyboard controller/USB controller, for example. > >And designs based on the Intel PIIX4 will generate SMI# interrupts for >whichever activities are programmed in the BIOS, completely bypassing >the traditional interrupt mechanism. And these interrupts will take as much as 50usec to service... -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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