From owner-freebsd-bugs  Thu Aug 30 14:39:23 2001
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Date: Thu, 30 Aug 2001 14:30:04 -0700 (PDT)
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From: Martin Blapp <mb@imp.ch>
Subject: Re: kern/30135: Time drifting on STABLE SMP when calling gettimeofday
Reply-To: Martin Blapp <mb@imp.ch>
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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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