From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755057AbYC1OOP (ORCPT ); Fri, 28 Mar 2008 10:14:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753154AbYC1OOA (ORCPT ); Fri, 28 Mar 2008 10:14:00 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:57388 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752993AbYC1ON7 (ORCPT ); Fri, 28 Mar 2008 10:13:59 -0400 Date: Fri, 28 Mar 2008 15:13:48 +0100 From: Ingo Molnar To: Pavel Machek Cc: Andi Kleen , kernel list Subject: Re: agpgart: when telling user you'll corrupt his data, at least do it at KERN_CRIT Message-ID: <20080328141348.GE29218@elte.hu> References: <20080328112507.GA10774@elf.ucw.cz> <20080328113528.GA8077@elte.hu> <20080328134451.GB4544@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080328134451.GB4544@ucw.cz> User-Agent: Mutt/1.5.17 (2007-11-01) 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 * Pavel Machek wrote: > On Fri 2008-03-28 12:35:28, Ingo Molnar wrote: > > > > * Pavel Machek wrote: > > > > > IOMMU off means very bad stuff may happen, like data corruption on > > > your hard drives. At least tells users this is serious... > > > > ouch. Please at minimum lets turn this into a panic(), but best would be > > to trim memory in this case, hm? > > Andi tells me we already fallback to swiotlb, so messages are not on > wrong loglevel; they contain confusing/obsolete text. yes that is the theory - but how did your disk get corrupted in practice? ;-) Ingo