Return-path: Received: from mail30g.wh2.ocn.ne.jp ([220.111.41.239]:27270 "HELO mail30g.wh2.ocn.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752200Ab0JHAmB (ORCPT ); Thu, 7 Oct 2010 20:42:01 -0400 Received: from vs3002.wh2.ocn.ne.jp (125.206.180.165) by mail30g.wh2.ocn.ne.jp (RS ver 1.0.95vs) with SMTP id 3-0441168517 for ; Fri, 8 Oct 2010 09:41:59 +0900 (JST) From: Bruno Randolf To: Johannes Berg Subject: Re: memory clobber in rx path, maybe related to ath9k. Date: Fri, 8 Oct 2010 09:42:02 +0900 Cc: Ben Greear , "Luis R. Rodriguez" , "linux-wireless@vger.kernel.org" References: <4CAB59B2.5050106@candelatech.com> <4CAE1DFB.303@candelatech.com> <1286479642.20974.32.camel@jlt3.sipsolutions.net> In-Reply-To: <1286479642.20974.32.camel@jlt3.sipsolutions.net> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Message-Id: <201010080942.02302.br1@einfach.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri October 8 2010 04:27:22 Johannes Berg wrote: > I'm still convinced something is wrong with ath9k RX DMA, as you've seen > the contents of frames written to already freed memory regions. Since I > don't know anything about ath9k, you should probably not rely on me > though :-) not sure if this is related or not, but it reminds me of: "ath9k: BUG kmalloc-8192: Poison overwritten" http://marc.info/?l=linux-kernel&m=127379077422354&w=2 and: "ath5k in monitor mode: Poison overwritten on buffers allocated from ath_rxbuf_alloc" https://bugzilla.kernel.org/show_bug.cgi?id=15861 bruno