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Date:      Sat, 18 Sep 1999 23:00:35 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Michael Reifenberger <root@nihil.plaut.de>
Cc:        Warner Losh <imp@village.org>, Andrzej Bialecki <abial@webgiro.com>, "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>, Matthew Dillon <dillon@apollo.backplane.com>, N <niels@bakker.net>, current@FreeBSD.ORG
Subject:   Re: 2xPIIIx450 results & NFS results 
Message-ID:  <12842.937688435@critter.freebsd.dk>
In-Reply-To: Your message of "Sat, 18 Sep 1999 22:55:15 %2B0200." <Pine.BSF.4.10.9909182251230.53132-200000@nihil.plaut.de> 

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In message <Pine.BSF.4.10.9909182251230.53132-200000@nihil.plaut.de>, Michael R
eifenberger writes:

>Hi,
>> We're seenig it too in the 19990815ish time frame.  This is both with
>> the 3.2R binaries AND the ones rebuilt and reinstalled.
>Saw it too on my ASUS P2B-DS (F.Rev.1008) 
>Solved by a patch flooding around to /sys/i386/isa/clock.c But why?
>The patch is attached.

I remember this one too.  I think the problem is that we fail to 
service the RTC intr for some reason.  This patch was only a 
workaround, and received a verbal broadside from Bruce if I
remember right.

Maybe it should be added under a sysctl until a better solution
is know.

--- clock.c	Sat Sep 18 22:41:40 1999
+++ clock.c.new	Sun Sep  5 13:21:35 1999
@@ -203,4 +203,6 @@
 clkintr(struct clockframe frame)
 {
+	while (rtcin(RTC_INTR) & RTCIR_PERIOD)
+		statclock(&frame);
 	if (timecounter->tc_get_timecount == i8254_get_timecount) {
 		disable_intr();

--
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!


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