Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758389AbYFIITC (ORCPT ); Mon, 9 Jun 2008 04:19:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752923AbYFIISw (ORCPT ); Mon, 9 Jun 2008 04:18:52 -0400 Received: from smtp-out04.alice-dsl.net ([88.44.63.6]:17723 "EHLO smtp-out04.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752675AbYFIISv (ORCPT ); Mon, 9 Jun 2008 04:18:51 -0400 To: "Grant Grundler" Cc: "Muli Ben-Yehuda" , "FUJITA Tomonori" , linux-kernel@vger.kernel.org, mgross@linux.intel.com, linux-scsi@vger.kernel.org Subject: Re: Intel IOMMU (and IOMMU for Virtualization) performances From: Andi Kleen References: <20080604235053K.fujita.tomonori@lab.ntt.co.jp> <20080606202119.GQ15085@il.ibm.com> <20080606213659.GC15085@il.ibm.com> Date: Mon, 09 Jun 2008 10:17:11 +0200 In-Reply-To: (Grant Grundler's message of "Fri, 6 Jun 2008 14:51:17 -0700") Message-ID: <87lk1fqayg.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 09 Jun 2008 08:10:01.0139 (UTC) FILETIME=[37008830:01C8CA08] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 507 Lines: 13 "Grant Grundler" writes: > > The historical DMA mapping "failure mode" is a kernel panic. Resizing or Hasn't been for a long time, except in some extreme cases. All drivers are expected to check return values for a long time now. -Andi -- 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/