Return-path: Received: from mail-gx0-f174.google.com ([209.85.161.174]:49890 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753571Ab0JNXqi convert rfc822-to-8bit (ORCPT ); Thu, 14 Oct 2010 19:46:38 -0400 Received: by gxk6 with SMTP id 6so100463gxk.19 for ; Thu, 14 Oct 2010 16:46:37 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4CB78870.8040207@candelatech.com> References: <4CAE1DFB.303@candelatech.com> <1286479642.20974.32.camel@jlt3.sipsolutions.net> <4CB378CD.1080800@candelatech.com> <4CB3D598.7050904@candelatech.com> <4CB4AA89.1070009@candelatech.com> <20101013053141.GA15798@vasanth-laptop> <4CB5E0A8.5020502@candelatech.com> <4CB78870.8040207@candelatech.com> Date: Fri, 15 Oct 2010 01:46:37 +0200 Message-ID: Subject: Re: memory clobber in rx path, maybe related to ath9k. From: =?ISO-8859-1?Q?Bj=F6rn_Smedman?= To: Ben Greear Cc: Vasanthakumar Thiagarajan , "Luis R. Rodriguez" , Johannes Berg , "linux-wireless@vger.kernel.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: 2010/10/15 Ben Greear : > I tried the patch below, and it didn't seem to help. ?Might even > have hurt..as it died on divide-by-zero error: Hmm, looks like the ani code got a zero listen time from the hw... That just might mean that the DMA actually hits one of these descriptors. :) I'll send a patch for the div-by-zero in a minute, and then perhaps we can narrow it down to which one of these descriptors is actually being used by DMA when it really shouldn't be? /Bj?rn