From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755004AbcKJK1t (ORCPT ); Thu, 10 Nov 2016 05:27:49 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:60980 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753562AbcKJK1r (ORCPT ); Thu, 10 Nov 2016 05:27:47 -0500 Date: Thu, 10 Nov 2016 11:27:41 +0100 From: Sebastian Andrzej Siewior To: Thomas Gleixner Cc: "Luck, Tony" , Borislav Petkov , "linux-kernel@vger.kernel.org" , "rt@linutronix.de" , "linux-edac@vger.kernel.org" , "x86@kernel.org" Subject: Re: [PATCH 22/25] x86/mcheck: Do the init in one place Message-ID: <20161110102741.2za5h56xpt2wt7tc@linutronix.de> References: <20161103145021.28528-23-bigeasy@linutronix.de> <20161107184532.xj6wzdjlzwhshcmf@pd.tnic> <20161107185524.GA2536@intel.com> <20161107201224.7xazmhgm7bogkrw5@pd.tnic> <20161108092302.wraci5m2cxqozlew@pd.tnic> <20161109142221.3r6xwhkxbckuv3bh@linutronix.de> <20161109153807.7mv7b5f4oqfijq2h@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F3A229E6C@ORSMSX114.amr.corp.intel.com> <20161110090037.apohiqnqgbymbq6j@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20161014 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016-11-10 11:22:22 [+0100], Thomas Gleixner wrote: > > Why on earth do we enable MCE stuff in identify_cpu() ? so it happens asap. Boris' mail in this thread: |Uh, hm, I'm not sure about this: so the issue I see with this is that |the more we're delaying the enabling or MCE reporting - and especially |setting CR4[MCE] - the more we're increasing the window where a MCE |during early boot will cause a shutdown. (This is what happens if |CR4[MCE]=0b). > Thanks, > > tglx Sebastian