Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754549AbbLDTiT (ORCPT ); Fri, 4 Dec 2015 14:38:19 -0500 Received: from mail.skyhub.de ([78.46.96.112]:47432 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752672AbbLDTiS (ORCPT ); Fri, 4 Dec 2015 14:38:18 -0500 Date: Fri, 4 Dec 2015 20:38:10 +0100 From: Borislav Petkov To: "Luck, Tony" Cc: "Raj, Ashok" , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" , "Andy Lutomirski (luto@amacapital.net)" Subject: Re: [Patch V0] x86, mce: Ensure offline CPU's don't participate in mce rendezvous process. Message-ID: <20151204193810.GP21177@pd.tnic> References: <1449188170-3909-1-git-send-email-ashok.raj@intel.com> <20151204143404.GF21177@pd.tnic> <20151204171419.GA4870@otc-brkl-03.jf.intel.com> <20151204165112.GI21177@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F39F78AD9@ORSMSX114.amr.corp.intel.com> <20151204173633.GK21177@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F39F78D9F@ORSMSX114.amr.corp.intel.com> <20151204180001.GL21177@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F39F79055@ORSMSX114.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F39F79055@ORSMSX114.amr.corp.intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 911 Lines: 24 On Fri, Dec 04, 2015 at 06:30:39PM +0000, Luck, Tony wrote: > Ashok wants to move in stage 2 to having the offline cpu scan banks and report > any errors seen there. To do that we'll have to run through a fair bit of the > do_machine_check() code. I'm still very sceptical whether logging those errors are worth the risk of running code on an offlined CPU. > But ... if you want a super safe version to put the stable tag on ... we could > just have something like this at the head of do_machine_check() It would be prudent IMO. We don't want to disrupt stable kernels unnecessarily. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/