Date: Thu, 30 Aug 2001 14:30:04 -0700 (PDT) From: Martin Blapp <mb@imp.ch> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/30135: Time drifting on STABLE SMP when calling gettimeofday Message-ID: <200108302130.f7ULU4m56090@freefall.freebsd.org>
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The following reply was made to PR kern/30135; it has been noted by GNATS.
From: Martin Blapp <mb@imp.ch>
To: <freebsd-gnats-submit@FreeBSD.org>
Cc:
Subject: Re: kern/30135: Time drifting on STABLE SMP when calling gettimeofday
Date: Thu, 30 Aug 2001 17:34:58 +0200 (CEST)
Thomas Moestl and I have found that the following workaround
makes the clock speedup disappearing:
--- sys/i386/isa/clock.c Thu Aug 30 17:01:31 2001
+++ sys/i386/isa/clock.c.new Thu Aug 30 17:01:29 2001
@@ -1203,7 +1203,7 @@
high = inb(TIMER_CNTR0);
count = timer0_max_count - ((high << 8) | low);
if (count < i8254_lastcount ||
- (!i8254_ticked && (clkintr_pending ||
+ (!i8254_ticked && (/*clkintr_pending || */
((count < 20 || (!(ef & PSL_I) && count < timer0_max_count /
Maybe someone else know more ?
Martin
Martin Blapp, mb@imp.ch
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