Return-path: Received: from 8bytes.org ([88.198.83.132]:39084 "EHLO 8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751674AbZCQIIz (ORCPT ); Tue, 17 Mar 2009 04:08:55 -0400 Date: Tue, 17 Mar 2009 08:45:02 +0100 From: Joerg Roedel To: FUJITA Tomonori Cc: mcgrof@gmail.com, iommu@lists.linux-foundation.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: AMD Quad core - PCI-DMA: Out of IOMMU space on > 4 GB RAM Message-ID: <20090317074501.GQ2125@8bytes.org> (sfid-20090317_090858_969543_576E6784) References: <43e72e890903161215u343cbb19v6d6cbf36794e252a@mail.gmail.com> <20090317093445G.fujita.tomonori@lab.ntt.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20090317093445G.fujita.tomonori@lab.ntt.co.jp> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Mar 17, 2009 at 09:35:45AM +0900, FUJITA Tomonori wrote: > From a quick look, ath9k doesn't call pci_unmap_single for rx > buffers. Though I might be wrong because I don't know anything about > the driver. In any case. This error description sounds very much like a dma memory leak on module unload. So its very likely a driver issue. Joerg