From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751513AbdAPWHe (ORCPT ); Mon, 16 Jan 2017 17:07:34 -0500 Received: from mx1.redhat.com ([209.132.183.28]:49678 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750996AbdAPWHc (ORCPT ); Mon, 16 Jan 2017 17:07:32 -0500 Message-ID: <587D43CA.5020609@redhat.com> Date: Mon, 16 Jan 2017 17:06:02 -0500 From: Prarit Bhargava User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Borislav Petkov CC: linux-kernel@vger.kernel.org, Tony Luck , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, linux-edac@vger.kernel.org Subject: Re: [PATCH] x86/mce: Fix initialization error warning References: <1484603381-15018-1-git-send-email-prarit@redhat.com> <20170116215612.f22reezt77nydsp5@pd.tnic> In-Reply-To: <20170116215612.f22reezt77nydsp5@pd.tnic> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Mon, 16 Jan 2017 22:06:04 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/16/2017 04:56 PM, Borislav Petkov wrote: > On Mon, Jan 16, 2017 at 04:49:41PM -0500, Prarit Bhargava wrote: >> When booting kernel with mce=off a loud warning from the mce code >> is displayed. This causes confusion for end users. > > Is this what you call a loud warning? > > [ 1.885648] mce: Unable to init device /dev/mcelog (rc: -5) Yes, it was loud enough to generate a bug report from a user. FWIW, I just found this from last year calling the same message "scary". It doesn't look like there was a follow up though. https://lkml.org/lkml/2016/2/9/354 P. >