From owner-freebsd-stable@FreeBSD.ORG Sun Feb 21 16:36:30 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2CB861065670 for ; Sun, 21 Feb 2010 16:36:30 +0000 (UTC) (envelope-from torfinn.ingolfsen@broadpark.no) Received: from bgo1smout1.broadpark.no (bgo1smout1.broadpark.no [217.13.4.94]) by mx1.freebsd.org (Postfix) with ESMTP id D84DB8FC18 for ; Sun, 21 Feb 2010 16:36:29 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=US-ASCII Received: from bgo1sminn1.broadpark.no ([217.13.4.93]) by bgo1smout1.broadpark.no (Sun Java(tm) System Messaging Server 6.3-3.01 (built Jul 12 2007; 32bit)) with ESMTP id <0KY700FN8A4JJV40@bgo1smout1.broadpark.no> for freebsd-stable@freebsd.org; Sun, 21 Feb 2010 17:36:19 +0100 (CET) Received: from kg-v2.kg4.no ([80.203.92.186]) by bgo1sminn1.broadpark.no (Sun Java(tm) System Messaging Server 6.3-3.01 (built Jul 12 2007; 32bit)) with SMTP id <0KY700CUAA4J1E10@bgo1sminn1.broadpark.no> for freebsd-stable@freebsd.org; Sun, 21 Feb 2010 17:36:19 +0100 (CET) Date: Sun, 21 Feb 2010 17:36:19 +0100 From: Torfinn Ingolfsen To: freebsd-stable@freebsd.org Message-id: <20100221173619.2470aa85.torfinn.ingolfsen@broadpark.no> In-reply-to: <20100221050823.GB22670@server.vk2pj.dyndns.org> References: <20100212132947.eb2af3d0.torfinn.ingolfsen@broadpark.no> <20100212131117.GA51905@icarus.home.lan> <20100212174452.2140cd72.torfinn.ingolfsen@broadpark.no> <20100217194927.e3ec60ae.torfinn.ingolfsen@broadpark.no> <20100217200322.da66c9f8.torfinn.ingolfsen@broadpark.no> <20100218205458.GA78560@server.vk2pj.dyndns.org> <20100218231223.ec6b9fa8.torfinn.ingolfsen@broadpark.no> <20100219003844.acdaa866.torfinn.ingolfsen@broadpark.no> <20100220015351.GB81639@server.vk2pj.dyndns.org> <20100220223201.178e67dd.torfinn.ingolfsen@broadpark.no> <20100221050823.GB22670@server.vk2pj.dyndns.org> X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.7; amd64-portbld-freebsd8.0) X-Face: "t9w2,-X@O^I`jVW\sonI3.,36KBLZE*AL[y9lL[PyFD*r_S:dIL9c[8Y>V42R0"!"yb_zN,f#%.[PYYNq; m"_0v; ~rUM2Yy!zmkh)3&U|u!=T(zyv,MHJv"nDH>OJ`t(@mil461d_B'Uo|'nMwlKe0Mv=kvV?Nh@>Hb<3s_z2jYgZhPb@?Wi^x1a~Hplz1.zH Subject: Re: ntpd struggling to keep up - how to fix? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Feb 2010 16:36:30 -0000 On Sun, 21 Feb 2010 16:08:23 +1100 Peter Jeremy wrote: > Having re-checked my maths, using both your "time reset" results, can > you please try: > sysctl machdep.acpi_timer_freq=3570847 > That should result in a drift of close to zero (well within NTP's > lock range of +/- 300ppm). And a few hours later: from /var/log/messages: Feb 21 09:54:50 kg-f2 ntpd[55452]: ntpd 4.2.4p5-a (1) Feb 21 09:59:10 kg-f2 ntpd[55453]: kernel time sync status change 2001 More info: root@kg-f2# ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== *kg-omni1.kg4.no 78.157.115.4 3 u 31 64 377 0.174 -10.253 0.160 root@kg-f2# ntpdc -c loopi -c sysi offset: -0.010253 s frequency: 6.744 ppm poll adjust: -30 watchdog timer: 47 s system peer: kg-omni1.kg4.no system peer mode: client leap indicator: 00 stratum: 4 precision: -18 root distance: 0.02956 s root dispersion: 0.06795 s reference ID: [10.1.10.1] reference time: cf2bdf36.f8820aef Sun, Feb 21 2010 17:35:02.970 system flags: auth monitor ntp kernel stats jitter: 0.000153 s stability: 0.000 ppm broadcastdelay: 0.003998 s authdelay: 0.000000 s Problem solved. Thanks a lot. -- Torfinn