From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTP id 1F58BA8A for ; Mon, 12 May 2014 16:28:17 +0000 (UTC) Received: from mail.8bytes.org (8bytes.org [85.214.48.195]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id AE5E720248 for ; Mon, 12 May 2014 16:28:16 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.8bytes.org (Postfix) with SMTP id C975212B187 for ; Mon, 12 May 2014 18:28:15 +0200 (CEST) Date: Mon, 12 May 2014 18:28:14 +0200 From: Joerg Roedel To: Andy Lutomirski Message-ID: <20140512162814.GR12376@8bytes.org> References: <1399552623.17118.22.camel@i7.infradead.org> <3908561D78D1C84285E8C5FCA982C28F328000EE@ORSMSX114.amr.corp.intel.com> <1399666748.2166.68.camel@dabdike.int.hansenpartnership.com> <4433093.MSzoqdJDMf@avalon> <20140512150722.GO12376@8bytes.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Cc: James Bottomley , "ksummit-discuss@lists.linuxfoundation.org" Subject: Re: [Ksummit-discuss] [CORE TOPIC] Device error handling / reporting / isolation List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, May 12, 2014 at 09:16:11AM -0700, Andy Lutomirski wrote: > On Mon, May 12, 2014 at 8:35 AM, Daniel Vetter wrote: > Just to check: are you talking about disabling the IOMMU if there's a > fault storm or disabling reporting of IOMMU faults? Probably about disabling the reporting of IOMMU faults. An IOMMU that is used for DMA-API mappings can not be disabled at runtime in a safe way. Joerg