From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756366AbYIRPh2 (ORCPT ); Thu, 18 Sep 2008 11:37:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754138AbYIRPhT (ORCPT ); Thu, 18 Sep 2008 11:37:19 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44403 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754293AbYIRPhR (ORCPT ); Thu, 18 Sep 2008 11:37:17 -0400 Message-ID: <48D2758B.1000004@zytor.com> Date: Thu, 18 Sep 2008 08:36:43 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.16 (X11/20080723) MIME-Version: 1.0 To: Ingo Molnar CC: Jason Baron , Andrew Morton , Yinghai Lu , Thomas Gleixner , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/6] loglevel=pci:8,acpi:8,apic=8 support v6 References: <1221640067-24389-1-git-send-email-yhlu.kernel@gmail.com> <20080917015543.27172da4.akpm@linux-foundation.org> <20080917092732.GB32107@elte.hu> <20080917184618.GB6486@redhat.com> <48D159A7.5080907@zytor.com> <20080918105728.GF20967@elte.hu> In-Reply-To: <20080918105728.GF20967@elte.hu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo Molnar wrote: > > which is what we really want. If a bootup fails, the user has to repeat > the bootup at least once with a verbosity level increased and with > (hopefully) some sort of log capture facility attached. > > So the point would be, if the user specified loglevel=all, we would get > really comprehensive, one-stop-shop output. > That is true if the bootup fails, but it's fairly common that we get the machine up (at least to the point when we can dmesg), but the user wants to report a problem. For that case, it's very nice if the dmesg log contains as much information as possible. So I don't think it's clear that pre-filtering is what we want, at all. -hpa