From owner-freebsd-stable@FreeBSD.ORG Mon Jun 11 10:51:22 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6445916A468 for ; Mon, 11 Jun 2007 10:51:21 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.freebsd.org (Postfix) with ESMTP id E069613C455 for ; Mon, 11 Jun 2007 10:51:18 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.1/8.14.1) with ESMTP id l5BApEhc019105; Mon, 11 Jun 2007 14:51:14 +0400 (MSD) (envelope-from marck@rinet.ru) Date: Mon, 11 Jun 2007 14:51:14 +0400 (MSD) From: Dmitry Morozovsky To: Matthew Dillon In-Reply-To: <20070610175748.L88437@woozle.rinet.ru> Message-ID: <20070610193708.W88437@woozle.rinet.ru> References: <20070606153542.Y76617@woozle.rinet.ru> <20070606231940.T91939@woozle.rinet.ru> <200706062127.l56LRYTe090137@apollo.backplane.com> <20070608111809.U97287@woozle.rinet.ru> <200706090809.l5989Mkj020033@apollo.backplane.com> <20070609163329.P4850@woozle.rinet.ru> <200706091957.l59JvDWR026822@apollo.backplane.com> <20070610175748.L88437@woozle.rinet.ru> X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (woozle.rinet.ru [0.0.0.0]); Mon, 11 Jun 2007 14:51:14 +0400 (MSD) Cc: freebsd-stable@freebsd.org, Ivan Voras Subject: Re: calcru: runtime went backwards, RELENG_6, SMP 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: Mon, 11 Jun 2007 10:51:22 -0000 DM> MD> :Well, I can of course shut the kernel up, but kernel time stability is still my DM> MD> :concern. I run ntpd there and while sometimes it seems stable (well, sorta: DM> MD> :drift are within several seconds...) there are cases of half-a-minute time DM> MD> :steps. DM> MD> DM> MD> I think the only hope you have of getting the issue addressed is to DM> MD> run FreeBSD current. If you can reproduce the time slips under current DM> MD> the developers should be able to track the problem down and fix it. The DM> MD> code is so different between those two releases that they are going to DM> MD> have a hard time working the problem in FreeBSD-6. DM> DM> Well, quick compile'n'install HEAD into the swap does not reveal time slips for DM> now. However, this is with WITNESS, I'll try to turn off most debugging kernel DM> options and try again. Not perfect: `time make install clean' finished with ===> Cleaning for screen-4.0.3 21.671u 3.775s 0:28.95 87.8% -1542500797858546+3035018384651625k 3393131677337410024+8717906021891401862io 1045071671142449598pf+0w Also, in /var/log/messages Jun 11 06:56:52 ct-new ntpd[613]: time reset -320.107962 s Jun 11 07:15:00 ct-new ntpd[613]: time reset -1.401627 s ct-new# ntpq -c pe remote refid st t when poll reach delay offset jitter ============================================================================== cs3661.rinet.ru 192.38.7.240 2 u 354 1024 377 5.305 -66314. 4321.47 ns.rinet.ru 130.207.244.240 2 u 365 1024 377 6.913 -66316. 4305.33 whale.rinet.ru 195.2.64.5 2 u 358 1024 377 7.939 -66308. 4304.90 Any directions to debug this? Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------