Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:39271 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754346Ab0JGSON (ORCPT ); Thu, 7 Oct 2010 14:14:13 -0400 Subject: Re: memory clobber in rx path, maybe related to ath9k. From: Johannes Berg To: Ben Greear Cc: "Luis R. Rodriguez" , "linux-wireless@vger.kernel.org" In-Reply-To: <4CAE0474.4090605@candelatech.com> References: <4CAB59B2.5050106@candelatech.com> <4CAB5F3D.9060201@candelatech.com> <4CAB627F.8020804@candelatech.com> <4CAB64AD.4080105@candelatech.com> <4CAB6B08.4050801@candelatech.com> <4CAE0474.4090605@candelatech.com> Content-Type: text/plain; charset="UTF-8" Date: Thu, 07 Oct 2010 20:14:10 +0200 Message-ID: <1286475250.20974.22.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2010-10-07 at 10:33 -0700, Ben Greear wrote: > In case it helps, here is a dump of where the corrupted SKB was deleted. I wonder, do you have a machine with a decent IOMMU? Adding IOMMU debugging into the mix could help you figure out if it's a DMA problem. johannes