From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756741Ab2IJJPy (ORCPT ); Mon, 10 Sep 2012 05:15:54 -0400 Received: from mail.skyhub.de ([78.46.96.112]:46767 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752758Ab2IJJPv (ORCPT ); Mon, 10 Sep 2012 05:15:51 -0400 Date: Mon, 10 Sep 2012 11:15:46 +0200 From: Borislav Petkov To: Adko Branil Cc: Mikael Pettersson , Jeff Garzik , linux-ide , lkml , Dan Merillat , "Rafael J. Wysocki" Subject: Re: HDD problem, software bug, bios bug, or hardware ? Message-ID: <20120910091546.GA4431@liondog.tnic> Mail-Followup-To: Borislav Petkov , Adko Branil , Mikael Pettersson , Jeff Garzik , linux-ide , lkml , Dan Merillat , "Rafael J. Wysocki" References: <1345901771.8871.YahooMailNeo@web124706.mail.ne1.yahoo.com> <20120826130152.GA20021@liondog.tnic> <1346086872.65665.YahooMailNeo@web124704.mail.ne1.yahoo.com> <20120827215952.GA18719@liondog.tnic> <1346259574.81504.YahooMailNeo@web124706.mail.ne1.yahoo.com> <20120830095808.GB24680@liondog.tnic> <1346325007.23643.YahooMailNeo@web124706.mail.ne1.yahoo.com> <20547.48101.900727.735398@pilspetsen.it.uu.se> <1347017576.44763.YahooMailNeo@web124703.mail.ne1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1347017576.44763.YahooMailNeo@web124703.mail.ne1.yahoo.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 07, 2012 at 04:32:56AM -0700, Adko Branil wrote: > After updating bios no more crashes happened, i tested it many times > on heavy HDD IO loads, with many kernels (including CONFIG_PREEMPT > kernels). Alriiight, one of the most seldom times where a BIOS update actually fixes things :-). > But now if enable "Cool'n' Quiet" option in bios,  > CONFIG_PREEMPT_VOLUNTARY kernel with passed "nosmp" at boot time, > crashes during boot process with kernel panic, while  CONFIG_PREEMPT > kernlel without "nosmp" works fine  - but it is another story i > think, should not be related with the crashes when it was old bios, > and i think it is probably "nosmp" the reason. Hmm, Cool'n'Quiet enabled actually means that you have _PSS objects and powernow-k8 should be detecting the P-states properly. Can you catch dmesg from that machine twice? * one with Cool'n'Quiet disabled * one with the kernel panic > (i have never changed cpu frequency of this cpu at all) When "Cool'n' > Quiet" is disabled, the system works perfectly adequately with all > kind of kernels i tried. Except that this warning message in dmesg > still appears (if it is problem at all). I put here this message for > "nosmp" case as well, kernel is 3.5.2: Right, so AFAICU, you can run a CONFIG_PREEMPT kernel perfectly fine now after the BIOS update, right? If so and when you say that the oopses started happening after an electrical instability, I'd venture a guess that something got damaged in the BIOS EPROM and since you've flashed it anew, the corrupted data got overwritten and so no more crashes. Correct? -- Regards/Gruss, Boris.