Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756897Ab0DNVMw (ORCPT ); Wed, 14 Apr 2010 17:12:52 -0400 Received: from mail-ew0-f220.google.com ([209.85.219.220]:35049 "EHLO mail-ew0-f220.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755749Ab0DNVMu convert rfc822-to-8bit (ORCPT ); Wed, 14 Apr 2010 17:12:50 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=wGuaK08ta1eOh+LAJkUOQamqDip7wgs54oKY/1OIl+aKUcutGkFxCYaXVQszwheJiJ EpIbQVpVQGraWf4wUhliOOEYEi4qVfzvchYnYxGTs9L9Qz99HSGU4looci3jic0qsPiF rOOelXAIjn10ZSbMuRNVZbMnTO4icc6v8qW5U= MIME-Version: 1.0 In-Reply-To: <20100414210143.GB5753@phenom.dumpdata.com> References: <20100414183826.GA25962@sequoia.sous-sol.org> <20100414210143.GB5753@phenom.dumpdata.com> Date: Wed, 14 Apr 2010 22:12:48 +0100 Message-ID: Subject: Re: USB transfer_buffer allocations on 64bit systems From: Pedro Ribeiro To: Konrad Rzeszutek Wilk Cc: Alan Stern , Chris Wright , USB list , Greg KH , Kernel development list , iommu@lists.linux-foundation.org, Andi Kleen , Daniel Mack , Andrew Morton , David Woodhouse Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1106 Lines: 26 On 14 April 2010 22:01, Konrad Rzeszutek Wilk wrote: > 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). > I can also trigger the bug on mount and unmount of a USB stick, albeit its not as intensive. Pedro -- 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/