Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752370AbaDQTmx (ORCPT ); Thu, 17 Apr 2014 15:42:53 -0400 Received: from mail.skyhub.de ([78.46.96.112]:45631 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751173AbaDQTmn (ORCPT ); Thu, 17 Apr 2014 15:42:43 -0400 Date: Thu, 17 Apr 2014 21:42:41 +0200 From: Borislav Petkov To: Linus Torvalds Cc: Josh Boyer , Owen Kibel , "Luck, Tony" , Peter Zijlstra , "mingo@kernel.org" , "hpa@zytor.com" , "linux-kernel@vger.kernel.org" , "atodorov@redhat.com" , "gong.chen@linux.intel.com" , "tglx@linutronix.de" , "linux-tip-commits@vger.kernel.org" Subject: Re: [tip:x86/urgent] x86/mce: Fix CMCI preemption bugs Message-ID: <20140417194241.GF4321@pd.tnic> References: <20140417100944.GG11096@twins.programming.kicks-ass.net> <20140417102442.GA8215@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F31E2A1D3@ORSMSX106.amr.corp.intel.com> <20140417152611.GD4321@pd.tnic> <20140417192330.GE4321@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: 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 Thu, Apr 17, 2014 at 12:25:14PM -0700, Linus Torvalds wrote: > No, Owen tested a simpler patch that just changes the "get_cpu_var()" > to "__get_cpu_var()" and avoids the preempt increment. Which basically would be the same as doing this_cpu_write() in the proposed fix - both don't touch preemption. So it is something else. More staring... -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- 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/