From owner-freebsd-arm@freebsd.org Thu Nov 21 19:26:51 2019 Return-Path: Delivered-To: freebsd-arm@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 12ADE1C89B5 for ; Thu, 21 Nov 2019 19:26:51 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from raven.bwct.de (raven.bwct.de [195.149.99.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "raven.bwct.de", Issuer "raven.bwct.de" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 47JqLf6FmXz3KXB; Thu, 21 Nov 2019 19:26:50 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from mail.cicely.de ([10.1.1.37]) by raven.bwct.de (8.15.2/8.15.2) with ESMTPS id xALJRdR3016237 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 21 Nov 2019 20:27:40 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cicely.de; s=default; t=1574364460; bh=Yeb6J8n7wv0TYrZHXoj0MxSN1kJ6szn2mlqcIB1PUJI=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To; b=sDuXmM2f3tvYaPFKHeACaPeh9U3kxOKcOcZuveXS33kAOxwGTpNR3I/Sas16EkWQs jWsOgV2vfryNdcE5Cv7mzSwMujoswoyGvdwpPjLMIJKMei/ZXNRWWKTNhbAxMtifhO qwAlVB3i5Mlv2GU/DdQUNMjNZx3pHM7yKskE9YfE= Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by mail.cicely.de (8.14.5/8.14.4) with ESMTP id xALJQiQV033873 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 21 Nov 2019 20:26:44 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.15.2/8.15.2) with ESMTP id xALJQhhc042681; Thu, 21 Nov 2019 20:26:43 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.15.2/8.15.2/Submit) id xALJQhtY042680; Thu, 21 Nov 2019 20:26:43 +0100 (CET) (envelope-from ticso) Date: Thu, 21 Nov 2019 20:26:43 +0100 From: Bernd Walter To: Ian Lepore Cc: ticso@cicely.de, freebsd-arm@freebsd.org, Bernd Walter Subject: Re: 20h offset with DS3231 RTC Message-ID: <20191121192643.GD41336@cicely7.cicely.de> Reply-To: ticso@cicely.de References: <20191120224239.GA34719@cicely7.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: FreeBSD cicely7.cicely.de 12.0-STABLE amd64 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-2.9 required=4.0 tests=ALL_TRUSTED=-1, BAYES_00=-1.9 autolearn=ham version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on spamd.cicely.de X-Rspamd-Queue-Id: 47JqLf6FmXz3KXB X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-5.99 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.997,0]; NEURAL_HAM_LONG(-1.00)[-0.995,0]; REPLY(-4.00)[] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Nov 2019 19:26:51 -0000 On Thu, Nov 21, 2019 at 12:15:06PM -0700, Ian Lepore wrote: > On Wed, 2019-11-20 at 23:42 +0100, Bernd Walter wrote: > > I just added an RTC to a Pi3B with FreeBSD 12.1-RELEASE: > > ds32310: at addr 0xd0 on iicbus0 > > ... > > Setting date via ntp. > > 20 Nov 22:55:48 ntpdate[760]: step time server 46.165.221.137 offset 71999.728041 sec > > > > This was the 3rd reboot. > > The first boot had no actual time as expected and the RTC wasn't even running. > > The second already showed the offset. > > > > To verify I checked another systemm, wqhich I've added such an RTC before. > > dmesg said that it booted 9 days ago with 1s offset, but with another reboot: > > 20 Nov 23:31:44 ntpdate[826]: step time server 80.67.16.8 offset 72000.160415 sec > > > > It seems that the error depends on the actual date/time. > > > > This should be fixed in r354973. Wow - amazing. I'll give it a try. Thank you very much. -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.