Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756814Ab0DNVDj (ORCPT ); Wed, 14 Apr 2010 17:03:39 -0400 Received: from rcsinet12.oracle.com ([148.87.113.124]:59877 "EHLO rcsinet12.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756194Ab0DNVDi (ORCPT >); Wed, 14 Apr 2010 17:03:38 -0400 Date: Wed, 14 Apr 2010 17:01:43 -0400 From: Konrad Rzeszutek Wilk To: Alan Stern Cc: Chris Wright , USB list , Greg KH , Kernel development list , iommu@lists.linux-foundation.org, Andi Kleen , Daniel Mack , Pedro Ribeiro , Andrew Morton , David Woodhouse Subject: Re: USB transfer_buffer allocations on 64bit systems Message-ID: <20100414210143.GB5753@phenom.dumpdata.com> References: <20100414183826.GA25962@sequoia.sous-sol.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.19 (2009-01-05) X-Source-IP: acsmt354.oracle.com [141.146.40.154] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090202.4BC62D7A.01AA:SCFMA4539814,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 912 Lines: 19 On Wed, Apr 14, 2010 at 04:29:22PM -0400, Alan Stern wrote: > On Wed, 14 Apr 2010, Chris Wright wrote: > > > So dma_map_single is the case that's failing, but you think the mask is > > correct? What about the direction? > > The mask and direction are unquestionably correct. The mask is set up > by pci_setup_device() and not changed thereafter. Furthermore, the > audio works okay until another device (a DVB tuner) is plugged in. Could the driver for the DVB tuner change the PCI mask? That is, change the pci mask way after it has been initialized (don't laugh, this did happend - as I remember 4 months fix was posted on the DRM mailing list for this). -- 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/