From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758779AbZGHWcF (ORCPT ); Wed, 8 Jul 2009 18:32:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757690AbZGHWbm (ORCPT ); Wed, 8 Jul 2009 18:31:42 -0400 Received: from one.firstfloor.org ([213.235.205.2]:47046 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758080AbZGHWbl (ORCPT ); Wed, 8 Jul 2009 18:31:41 -0400 From: Andi Kleen References: <200907091231.681564770@firstfloor.org> In-Reply-To: <200907091231.681564770@firstfloor.org> To: linux-kernel@vger.kernel.org, x86@kernel.org Subject: [PATCH] [2/8] x86: mce: Update X86_MCE description in x86/Kconfig Message-Id: <20090708223138.E5EF41D035D@basil.firstfloor.org> Date: Thu, 9 Jul 2009 00:31:38 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org - Clarify that this config controls thermal throttling reporting too - Clarify the types of errors reported by machine checks - Drop references to ancient CPUs. Signed-off-by: Andi Kleen --- arch/x86/Kconfig | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) Index: linux/arch/x86/Kconfig =================================================================== --- linux.orig/arch/x86/Kconfig +++ linux/arch/x86/Kconfig @@ -777,20 +777,12 @@ config X86_REROUTE_FOR_BROKEN_BOOT_IRQS increased on these systems. config X86_MCE - bool "Machine Check Exception" + bool "Machine Check / overheating reporting" ---help--- - Machine Check Exception support allows the processor to notify the - kernel if it detects a problem (e.g. overheating, component failure). + Machine Check support allows the processor to notify the + kernel if it detects a problem (e.g. overheating, data corruption). The action the kernel takes depends on the severity of the problem, - ranging from a warning message on the console, to halting the machine. - Your processor must be a Pentium or newer to support this - check the - flags in /proc/cpuinfo for mce. Note that some older Pentium systems - have a design flaw which leads to false MCE events - hence MCE is - disabled on all P5 processors, unless explicitly enabled with "mce" - as a boot argument. Similarly, if MCE is built in and creates a - problem on some new non-standard machine, you can boot with "nomce" - to disable it. MCE support simply ignores non-MCE processors like - the 386 and 486, so nearly everyone can say Y here. + ranging from warning messages to halting the machine. config X86_OLD_MCE depends on X86_32 && X86_MCE