From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932950AbbLGUUF (ORCPT ); Mon, 7 Dec 2015 15:20:05 -0500 Received: from mail.skyhub.de ([78.46.96.112]:51568 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932636AbbLGUUD (ORCPT ); Mon, 7 Dec 2015 15:20:03 -0500 Date: Mon, 7 Dec 2015 21:19:51 +0100 From: Borislav Petkov To: "Luck, Tony" Cc: "Raj, Ashok" , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" Subject: Re: [Patch V2] x86, mce: Ensure offline CPU's don't participate in mce rendezvous process. Message-ID: <20151207201951.GI22248@pd.tnic> References: <20151205002930.GA24005@otc-brkl-03.jf.intel.com> <20151207200019.GH22248@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F39F7C24B@ORSMSX114.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F39F7C24B@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 On Mon, Dec 07, 2015 at 08:04:30PM +0000, Luck, Tony wrote: > > Kernel panic - not syncing: Timeout: Not all CPUs entered broadcast exception handler > > Is that what we printed in this case? ... boy is that a misleading message ... we got *extra* > cpus (the offline ones), not "Not all". > > Good job we have a fix :-) Well, we still have that printk string in there. And that is incorrect too, because the MCE (at least the one I'm injecting) gets broadcasted to the CPUs on the *node* and not to the whole system. If we had to be precise, text should say "Not all CPUs which the MCE was broadcasted to entered the exception handler..." -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply.