Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757891Ab0HDNNl (ORCPT ); Wed, 4 Aug 2010 09:13:41 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:39719 "EHLO TX2EHSOBE005.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757602Ab0HDNNk (ORCPT ); Wed, 4 Aug 2010 09:13:40 -0400 X-SpamScore: -25 X-BigFish: VS-25(z21eRz98dNzz1202hzz15d4Rz32i2a8h87h62h) X-Spam-TCS-SCL: 1:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L6MQ24-01-JBA-02 X-M-MSG: Date: Wed, 4 Aug 2010 15:16:34 +0200 From: "Roedel, Joerg" To: FUJITA Tomonori CC: "subrata@linux.vnet.ibm.com" , "linux-kernel@vger.kernel.org" , "Linuxppc-dev@ozlabs.org" , "grant.likely@secretlab.ca" , "James.Bottomley@suse.de" , "brking@linux.vnet.ibm.com" , "tj@kernel.org" , "rcj@linux.vnet.ibm.com" , "devilbis@us.ibm.com" , "santil@us.ibm.com" , "sleddog@us.ibm.com" , "sachinp@linux.vnet.ibm.com" , "dipraksh@linux.vnet.ibm.com" Subject: Re: 2.6.35-stable/ppc64/p7: Badness at lib/dma-debug.c:902, Call Trace & Instruction Dump during boot Message-ID: <20100804131634.GX26098@amd.com> References: <1280746270.15317.16.camel@subratamodak.linux.ibm.com> <20100802205404C.fujita.tomonori@lab.ntt.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20100802205404C.fujita.tomonori@lab.ntt.co.jp> Organization: Advanced Micro Devices =?iso-8859-1?Q?GmbH?= =?iso-8859-1?Q?=2C_Karl-Hammerschmidt-Str=2E_34=2C_85609_Dornach_bei_M=FC?= =?iso-8859-1?Q?nchen=2C_Gesch=E4ftsf=FChrer=3A_Thomas_M=2E_McCoy=2C_Giuli?= =?iso-8859-1?Q?ano_Meroni=2C_Andrew_Bowd=2C_Sitz=3A_Dornach=2C_Gemeinde_A?= =?iso-8859-1?Q?schheim=2C_Landkreis_M=FCnchen=2C_Registergericht_M=FCnche?= =?iso-8859-1?Q?n=2C?= HRB Nr. 43632 User-Agent: Mutt/1.5.20 (2009-06-14) X-Reverse-DNS: ausb3extmailp02.amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 795 Lines: 22 On Mon, Aug 02, 2010 at 07:55:03AM -0400, FUJITA Tomonori wrote: > I guess that this driver does a partial sync with > dma_sync_single_for_* API. dma-debug can't handle it properly. It's > likely that this is a false warning. If this turns out to be true it is not trivial to fix. I prepare a patch to test for you. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632 -- 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/