From owner-freebsd-current@FreeBSD.ORG Tue Dec 28 15:37:40 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx2.freebsd.org (mx2.freebsd.org [IPv6:2001:4f8:fff6::35]) by hub.freebsd.org (Postfix) with ESMTP id 336EB1065670 for ; Tue, 28 Dec 2010 15:37:40 +0000 (UTC) (envelope-from cperciva@freebsd.org) Received: from xps.daemonology.net (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx2.freebsd.org (Postfix) with SMTP id D8B511554AC for ; Tue, 28 Dec 2010 15:37:38 +0000 (UTC) Received: (qmail 732 invoked from network); 28 Dec 2010 15:37:38 -0000 Received: from unknown (HELO xps.daemonology.net) (127.0.0.1) by localhost with SMTP; 28 Dec 2010 15:37:38 -0000 Message-ID: <4D1A0442.4050109@freebsd.org> Date: Tue, 28 Dec 2010 07:37:38 -0800 From: Colin Percival User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.16) Gecko/20101220 Thunderbird/3.0.11 MIME-Version: 1.0 To: FreeBSD Current X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: (CTRL-C to abort) console spam X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Dec 2010 15:37:40 -0000 Hi all, The '(CTRL-C to abort)' which gets printed while dumping is irritating me because EC2's console has a very limited buffer and having this spammed makes it impossible to see any printfs immediately prior. (Turning off dumping solves the problem, but creates a worse problem, namely a lack of dumps.) I'd like to add a sysctl to optionally disable this message, with a default behaviour of printing the message. Two questions for the list: 1. Any objections to adding such a sysctl? 2. What colour should the sysctl^W^W^W^W name should the sysctl be given? I'm leaning towards debug.quietdump, but it's not a strong preference. -- Colin Percival Security Officer, FreeBSD | freebsd.org | The power to serve Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid