From owner-freebsd-hackers@FreeBSD.ORG Wed Apr 1 07:40:34 2015 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7595F77A for ; Wed, 1 Apr 2015 07:40:34 +0000 (UTC) Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222]) by mx1.freebsd.org (Postfix) with ESMTP id 361A3F29 for ; Wed, 1 Apr 2015 07:40:33 +0000 (UTC) Received: from critter.freebsd.dk (unknown [192.168.48.2]) by phk.freebsd.dk (Postfix) with ESMTP id D1BE53B8A2; Wed, 1 Apr 2015 07:40:26 +0000 (UTC) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.14.9/8.14.9) with ESMTP id t317eOqA042744; Wed, 1 Apr 2015 07:40:25 GMT (envelope-from phk@phk.freebsd.dk) To: Jason Hellenthal Subject: Re: Uptime starts with one second In-reply-to: <516B61EB-173D-44D8-B199-44E915738EF3@dataix.net> From: "Poul-Henning Kamp" References: <551B9531.4040902@embedded-brains.de> <516B61EB-173D-44D8-B199-44E915738EF3@dataix.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <42742.1427874024.1@critter.freebsd.dk> Date: Wed, 01 Apr 2015 07:40:24 +0000 Message-ID: <42743.1427874024@critter.freebsd.dk> X-Mailman-Approved-At: Wed, 01 Apr 2015 11:27:53 +0000 Cc: Sebastian Huber , freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Apr 2015 07:40:34 -0000 -------- As I recall (author of timecounters here...) the ARP code was the reason we had to start uptime at one. Can't remember what it did if uptime was zero, but probably some variant of "not working". -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.