From owner-freebsd-current@freebsd.org  Mon Jan  1 08:57:24 2018
Return-Path: <owner-freebsd-current@freebsd.org>
Delivered-To: freebsd-current@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A65A7E87FC7
 for <freebsd-current@mailman.ysv.freebsd.org>;
 Mon,  1 Jan 2018 08:57:24 +0000 (UTC) (envelope-from lists@opsec.eu)
Received: from home.opsec.eu (home.opsec.eu [IPv6:2001:14f8:200::1])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 6D8B9649BA
 for <freebsd-current@freebsd.org>; Mon,  1 Jan 2018 08:57:24 +0000 (UTC)
 (envelope-from lists@opsec.eu)
Received: from pi by home.opsec.eu with local (Exim 4.89 (FreeBSD))
 (envelope-from <lists@opsec.eu>)
 id 1eVvuN-000HiG-BP; Mon, 01 Jan 2018 09:57:23 +0100
Date: Mon, 1 Jan 2018 09:57:23 +0100
From: Kurt Jaeger <lists@opsec.eu>
To: Matthias Apitz <guru@unixarea.de>, freebsd-current@freebsd.org
Subject: Re: panic: invalid bcd 194
Message-ID: <20180101085723.GM2827@home.opsec.eu>
References: <20171230210711.GA75976@c720-r314251>
 <20171230211154.GT1684@kib.kiev.ua>
 <20171230214819.GA2191@c720-r314251>
 <20171231083624.GA2175@c720-r314251>
 <1514740790.12000.20.camel@freebsd.org>
 <20180101085425.GA2301@c720-r314251>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20180101085425.GA2301@c720-r314251>
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 01 Jan 2018 08:57:24 -0000

Hi!

> For the moment we solved the issue by booting some older r28nnnn
> memstick, writing a correct date with ntpdate into the RTC and rebooted
> without poweroff. It seems that the RTC survives even some short
> powercyle.
> 
> The CMOS battery is soldered on the motherboard of the Acer C720, i.e.
> no chance to be replaced.
> 
> The issue must be fixed in FreeBSD, i.e. it should boot even with a
> broken RTC. Should I file a PR for this?

Yes, please file a PR.

-- 
pi@opsec.eu            +49 171 3101372                         2 years to go !