From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763544AbYEVVVP (ORCPT ); Thu, 22 May 2008 17:21:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761248AbYEVVUp (ORCPT ); Thu, 22 May 2008 17:20:45 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:49697 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765118AbYEVVUo (ORCPT ); Thu, 22 May 2008 17:20:44 -0400 Message-ID: <4835E39E.90801@garzik.org> Date: Thu, 22 May 2008 17:20:30 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Alexey Dobriyan CC: csnook@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jay Cliburn , stable@kernel.org Subject: Re: [PATCH RESEND] atl1: fix 4G memory corruption bug References: <20080522220025.GA566@martell.zuzino.mipt.ru> In-Reply-To: <20080522220025.GA566@martell.zuzino.mipt.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.4 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alexey Dobriyan wrote: > From: Alexey Dobriyan > > When using 4+ GB RAM and SWIOTLB is active, the driver corrupts > memory by writing an skb after the relevant DMA page has been > unmapped. Although this doesn't happen when *not* using bounce > buffers, clearing the pointer to the DMA page after unmapping > it fixes the problem. > > http://marc.info/?t=120861317000005&r=2&w=2 > > > Signed-off-by: Alexey Dobriyan > Signed-off-by: Jay Cliburn > --- > > drivers/net/atlx/atl1.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) applied