Date: Wed, 6 Feb 2008 16:55:14 +0100 From: "Oliver B. Warzecha" <obw@amarok.ping.de> To: Bruce Evans <brde@optusnet.com.au> Cc: FreeBSD-gnats-submit@FreeBSD.ORG, freebsd-i386@FreeBSD.ORG Subject: Re: i386/119574: 7.0-RC1 times out in calibrate_clocks() Message-ID: <20080206155514.GD1361@karnevil9.amarok.ping.de> In-Reply-To: <20080113225917.Y50887@delplex.bde.org> References: <200801112032.m0BKWFXg001186@karnevil9.amarok.ping.de> <20080113225917.Y50887@delplex.bde.org>
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Addon to my last mail, as I just discovered the i440BX-Specs, just 2 clicks away from one of the pages where I last searched for info. They are downloadable from http://www.intel.com/design/intarch/datashts/290562.htm On page 84, there is specified that the RTC index register is write only (as I found out in practical testing :-). And it is also described as a latch register, which makes the current code "working by pure chance", as it's implementation dependent which bus noise happens on the other side of the gate. (If I didn't get the meaning of "latch" in this case totally wrong) regards, OBW
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