From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755464AbYDTKBs (ORCPT ); Sun, 20 Apr 2008 06:01:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751826AbYDTKBh (ORCPT ); Sun, 20 Apr 2008 06:01:37 -0400 Received: from port-212-202-105-50.static.qsc.de ([212.202.105.50]:41176 "EHLO the-village.bc.nu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751721AbYDTKBh (ORCPT ); Sun, 20 Apr 2008 06:01:37 -0400 Date: Sun, 20 Apr 2008 10:33:58 +0100 From: Alan Cox To: Rumi Szabolcs Cc: linux-kernel@vger.kernel.org Subject: Re: dying hdd causing MCE and panic (libata) Message-ID: <20080420103358.028c94e2@the-village.bc.nu> In-Reply-To: <20080420113309.2343eb63.rumi_ml@rtfm.hu> References: <20080420113309.2343eb63.rumi_ml@rtfm.hu> X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.5; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > - Is it normal that a simple hard disk failure (that is not even > the system disk) causes MCEs and kernel panics? No but with old style (pre AHCI) IDE it can because the system may MCE if the CPU<->Disk hangs. If a drive is causing PSU problems it could also occur I guess - ditto heat. You'd need to decode the MCE > - Is this a problem that is induced completely on the hardware > level (eg. the southbridge going crazy and making the whole > hardware platform unstable) or a problem that could be fixed > or handled properly on the software (kernel) level? An MCE the hardware can recover from is reported and we continue. CPU Context Corrupt means the processor internally set a "cannot carry on" indicator. Alan