From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 4 Aug 2010 15:16:34 +0200 From: "Roedel, Joerg" To: FUJITA Tomonori 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" In-Reply-To: <20100802205404C.fujita.tomonori@lab.ntt.co.jp> Cc: "sachinp@linux.vnet.ibm.com" , "linux-kernel@vger.kernel.org" , "santil@us.ibm.com" , "Linuxppc-dev@ozlabs.org" , "devilbis@us.ibm.com" , "James.Bottomley@suse.de" , "sleddog@us.ibm.com" , "brking@linux.vnet.ibm.com" , "tj@kernel.org" , "subrata@linux.vnet.ibm.com" , "dipraksh@linux.vnet.ibm.com" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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