Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753571AbYK0UTj (ORCPT ); Thu, 27 Nov 2008 15:19:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752491AbYK0UT2 (ORCPT ); Thu, 27 Nov 2008 15:19:28 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:38745 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752432AbYK0UT1 (ORCPT ); Thu, 27 Nov 2008 15:19:27 -0500 Date: Thu, 27 Nov 2008 21:18:36 +0100 From: Ingo Molnar To: Arjan van de Ven Cc: Yinghai Lu , Linux Kernel Mailing List , Linus Torvalds , NetDev , x86@kernel.org, Andrew Morton , "Theodore Ts'o" , Alan Cox , jesse Barnes Subject: Re: oops/warning report for the week of November 26, 2008 Message-ID: <20081127201836.GA16869@elte.hu> References: <492DD792.6080302@linux.intel.com> <20081127115236.GE29013@elte.hu> <492EE087.80708@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <492EE087.80708@linux.intel.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1128 Lines: 30 * Arjan van de Ven wrote: > Ingo Molnar wrote: >> * Arjan van de Ven wrote: >> >>> Rank 8: mtrr_trim_uncached_memory (warning) >>> Reported 227 times (619 total reports) >>> There is a high number of machines where our MTRR checks trigger. I >>> suspect we are too picky in accepting the MTRR configuration. >> >> the warning here means: "the BIOS messed up but we fixed it up for you >> just fine". > > I don't believe that right now. we see so many of these, including > many "there's no MTRRs at all", that I am seriously suspecting that > our code is just incorrect somehow and triggering too much. well we looked at existing reports and Linux was right to fix them up. Show us one that is incorrect, then we can fix it up. the "no MTRR's" are vmware/(also qemu?) guests not implementing a full CPU emulation. Ingo -- 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/