From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030312Ab2CIWoz (ORCPT ); Fri, 9 Mar 2012 17:44:55 -0500 Received: from home.keithp.com ([63.227.221.253]:33358 "EHLO keithp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755803Ab2CIWoy (ORCPT ); Fri, 9 Mar 2012 17:44:54 -0500 From: Keith Packard To: Josh Boyer Cc: Dave Jones , Yang Bai , Fengguang Wu , Linux Kernel , Fedora Kernel Team , kernel@tesarici.cz, David Woodhouse Subject: Re: inode->i_wb_list corruption. In-Reply-To: <20120309201934.GN17489@zod.bos.redhat.com> References: <20120306185137.GA15881@redhat.com> <20120306210307.GC8781@quack.suse.cz> <20120307072608.GA24087@localhost> <20120307104240.GB18658@quack.suse.cz> <20120309145713.GA21543@redhat.com> <20120309151951.GA30160@redhat.com> <20120309180015.GA3862@redhat.com> <868vj97d20.fsf@sumi.keithp.com> <20120309201934.GN17489@zod.bos.redhat.com> User-Agent: Notmuch/0.11.1 (http://notmuchmail.org) Emacs/23.3.1 (i486-pc-linux-gnu) Date: Fri, 09 Mar 2012 14:44:49 -0800 Message-ID: <861up175su.fsf@sumi.keithp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org <#part sign=pgpmime> On Fri, 9 Mar 2012 15:19:34 -0500, Josh Boyer wrote: > Is the VT-d issue something in the hardware itself, or do you mean if > you have it enabled in the kernel? We've had the intel IOMMU disabled > by default in the Fedora kernels for a while now. At least since before > 3.2 was released. I don't know for sure; David Woodhouse gave a scary presentation yesterday that makes me unsure of what happens when IOMMU is disabled in the kernel, given that much of the hardware is setup by the BIOS. -- keith.packard@intel.com