Return-path: Received: from mail-gy0-f174.google.com ([209.85.160.174]:58475 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752600Ab0CTDHS (ORCPT ); Fri, 19 Mar 2010 23:07:18 -0400 Received: by gyg8 with SMTP id 8so1825631gyg.19 for ; Fri, 19 Mar 2010 20:07:17 -0700 (PDT) From: Bruno Randolf To: Bruno Randolf Subject: Re: [PATCH V2] mac80211: Revise,pending queue depth in ieee80211_local data structure Date: Sat, 20 Mar 2010 12:07:11 +0900 Cc: Johannes Berg , "lorenzo.bianconi83@gmail.com" , linux-wireless@vger.kernel.org, Larry Finger , Tony Huang References: <4BA24A12.4030208@gmail.com> <201003201144.24471.randolf.bruno@gmail.com> In-Reply-To: <201003201144.24471.randolf.bruno@gmail.com> MIME-Version: 1.0 Message-Id: <201003201207.11218.randolf.bruno@gmail.com> Content-Type: Text/Plain; charset="utf-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: On Saturday 20 March 2010 11:44:24 Bruno Randolf wrote: > i think i'm hitting the same bug, but not sure (i will try to check next > week). this is easy to reproduce, but you need 4 (at least 3) machines: > > setup 2 wireless cards, talking to each other (i use IBSS) on different > machines. then setup routing like this: > > [1] - [WL1] - [WL2] - [2] > > now send more UDP traffic than the wireless link can handle (iperf -u -b > 50M for example) between [1] and [2]. watch the free memory get less and > less at [WL1] until it chrashes. forgot to add: [1] and [2] are connected by ethernet to [WL1/2]... (obviously?) bruno