Date: Wed, 01 Sep 1999 21:36:18 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Mike Smith <mike@smith.net.au> Cc: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, 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: <37419.936214578@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 01 Sep 1999 12:26:34 PDT." <199909011926.MAA00398@dingo.cdrom.com>
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In message <199909011926.MAA00398@dingo.cdrom.com>, Mike Smith writes: >> 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... > >Since in the context that we're discussing the system is asleep, I can't >actually see how this is in any way relevant... Because SMI interrupts happen all the time, not just when it is asleep :-( -- 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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