From owner-freebsd-stable Wed Jun 28 7:33:14 2000 Delivered-To: freebsd-stable@freebsd.org Received: from rush.telenordia.se (mail.telenordia.se [194.213.64.42]) by hub.freebsd.org (Postfix) with SMTP id 48B1937B9EC for ; Wed, 28 Jun 2000 07:33:09 -0700 (PDT) (envelope-from pap@garen.net) Received: (qmail 21489 invoked from network); 28 Jun 2000 16:33:07 +0200 Received: from du123-152.ppp.algonet.se (HELO 327219) (195.100.152.123) by mail.telenordia.se with SMTP; 28 Jun 2000 16:33:07 +0200 Received: (qmail 71211 invoked by uid 1004); 28 Jun 2000 14:32:39 -0000 Date: Wed, 28 Jun 2000 16:32:38 +0200 From: Andreas Persson To: freebsd-stable@FreeBSD.ORG Subject: Re: microuptime() going backwards Message-ID: <20000628163236.A70918@sophocles> Mail-Followup-To: Andreas Persson , freebsd-stable@FreeBSD.ORG References: <20000627120348.B5328@sydney.worldwide.lemis.com> <200006280321.UAA00490@mass.osd.bsdi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <200006280321.UAA00490@mass.osd.bsdi.com>; from msmith@freebsd.org on Tue, Jun 27, 2000 at 08:21:18PM -0700 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Jun 27, 2000 at 08:21:18PM -0700, Mike Smith wrote: >I explained this to you at Usenix, actually. It has nothing to do with >APM, it has to do with the selection of clocks available with/without APM >compiled into the kernel - there is probably either a bug in the TSC >hardware on this CPU, or (more likely) a bug in the timecounter code >(since people see this on !APM systems already). Setting the sysctl kern.timecounter.method to 1 seems to have solved this on one of my 4.0-RELEASE boxes. No microuptime() messages for almost 3 weeks now. >-- >\\ Give a man a fish, and you feed him for a day. \\ Mike Smith >\\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org >\\ and he'll hate you for a lifetime. \\ msmith@cdrom.com -- Andreas Persson pap@garen.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message