Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:38475 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753371Ab0I1HYf (ORCPT ); Tue, 28 Sep 2010 03:24:35 -0400 Subject: Re: memory leak in scan with 9170? From: Johannes Berg To: "Luis R. Rodriguez" Cc: Chuck Crisler , linux-wireless@vger.kernel.org In-Reply-To: References: <58E3CFACA7054DC48245C67E9D4AE07B@ChuckPC> Content-Type: text/plain; charset="UTF-8" Date: Tue, 28 Sep 2010 09:24:32 +0200 Message-ID: <1285658672.3885.3.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2010-09-27 at 16:01 -0700, Luis R. Rodriguez wrote: > On Mon, Sep 27, 2010 at 3:40 PM, Chuck Crisler wrote: > > Well, (as usual) I was wrong. It isn't a memory problem. It seems that after > > some indeterminant time, the USB interface locks up. When we try to take it > > down (ifconfig wlan0 down) we get a message about outstanding urbs. By > > powering down the 9170 we can re-set the device and get it to re-associate > > and resume work. So, the problem is a USB problem. The question is if it is > > a module problem or a system problem. We are typically seeing this after > > 50-200 reassociations. If we don't reassociate, it doesn't seem to occur. > > Does anyone else have experience or insight into this? > > Upgrade. Won't help. I've seen that issue as recently as 2.6.35 (I think) with ar9170, and eventually figured I wouldn't bother and started using carl9170. johannes