From owner-freebsd-current@FreeBSD.ORG Thu Sep 3 01:14:33 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 514551065676 for ; Thu, 3 Sep 2009 01:14:33 +0000 (UTC) (envelope-from chmeeedalf@gmail.com) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.251]) by mx1.freebsd.org (Postfix) with ESMTP id E4D678FC13 for ; Thu, 3 Sep 2009 01:14:32 +0000 (UTC) Received: by an-out-0708.google.com with SMTP id d14so545857and.13 for ; Wed, 02 Sep 2009 18:14:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=UmMas+l+LYF7cZzZgcA/DVHdban9WyDir88L5v/U7K0=; b=p7X0YSKe6mBq20rKLUrsUz46jufZlyyFbcKYjmNh8my1aEscSmjCPIIwed4dw19s0J P5Jk5qSb+nb3GjBvg8oXLHYzU5ffjcvesW0lOhY72gIif3p4HVbyHsjh/CNb0U1G5o/D Yzprh9NE5eTjWusrUYryHNBfji56GT5JDvA5o= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=RE9PeVvOxUlKO+5oQmmdkfy3sjhWY5BPawVbx6sH/koCKSfjR8JhEOUOCFJuL6+KMK xH/yb3ya43+c/QQWwoBsPz+9RvOY6RHVrF7FxQrAx8nJ4drma9ka78nqnDBMLTkYMJbQ feyDcsWxvEbIYx3FRBie2cQb72mYb+YTg9tf0= MIME-Version: 1.0 Sender: chmeeedalf@gmail.com Received: by 10.100.17.20 with SMTP id 20mr10096157anq.41.1251940472147; Wed, 02 Sep 2009 18:14:32 -0700 (PDT) In-Reply-To: References: <200909010931.16880.nick@van-laarhoven.org> <1251841416.1689.4458.camel@balrog.2hip.net> <200909021656.15747.nick@van-laarhoven.org> Date: Wed, 2 Sep 2009 21:14:32 -0400 X-Google-Sender-Auth: 60acffd507fa1fed Message-ID: From: Justin Hibbits To: James Butler Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: FreeBSD CURRENT Mailing List , Nick Hibma , Robert Noland Subject: Re: Reducing noise in dmesg output 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: Thu, 03 Sep 2009 01:14:33 -0000 On Wed, Sep 2, 2009 at 8:39 PM, James Butler wrote: > 2009/9/3 Nick Hibma : > >> What is irrelevant is subjective... I mean does the average user really > >> need to see anything in dmesg? Please don't change agp_i810.c. A > >> verbose boot is incredibly noisy and rarely needed for debugging > >> anything except the most deep rooted of issues. > > > > Please state arguments instead of this 'I think it is useful'. That's not > > going to cut it. If you feel strongly about the info that is being > produced, > > an option would be to produce a (tested!) patch that combines more > > information on one line as a compromise. > > > > FreeBSD has historically been producing very limited output on dmesg. > Linux > > is very noisy (ever noticed the copyright notices right in the middle of > > your list of PCI devices?). Even they have decided that they should hide > > this behind coloured 'ok/failed' texts in some distributions. > > This seems like an important distinction - the information which needs > to be available with dmesg and the information best shown to the user > at startup are not necessarily the same. The hypothetical "average > user" probably wouldn't care if there were *no* kernel messages shown > on startup. The Xubuntu box I'm writing this from shows only GRUB > messages before the login prompt on tty1, and only service startup > messages on tty8 (not to suggest that FreeBSD ought to be more like > Ubuntu...). > > IOW, why bother painting it at all? Plain galvanized steel is very > durable, and quite attractive when kept clean ;-) > > -James Butler > Doesn't the 'boot_mute' (loader) environment variable do just that? >From the man page: boot_mute All console output is suppressed when console is muted. In a running system, the state of console muting can be manipulated by the conscontrol(8) utility. - Justin