Return-path: Received: from hetz2.bluebottle.com ([176.9.57.138]:60227 "EHLO fe0.bluebottle.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756700Ab3BTIPX (ORCPT ); Wed, 20 Feb 2013 03:15:23 -0500 Date: Wed, 20 Feb 2013 09:15:38 +0100 From: Bastian Bittorf To: Larry Finger Cc: =?iso-8859-15?Q?G=E1bor?= Stefanik , Julian Calaby , David Miller , David.Laight@aculab.com, linville@tuxdriver.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, bittorf@bluebottle.com, stable@vger.kernel.org, openwrt-devel@lists.openwrt.org Subject: Re: [PATCH] b43: Increase number of RX DMA slots Message-ID: <20130220081538.GO8730@medion.lan> (sfid-20130220_091528_211087_4BB7C810) References: <20130219.005206.397289032011003833.davem@davemloft.net> <5123BCFF.5090408@lwfinger.net> <20130219.131553.787630407148880340.davem@davemloft.net> <5123C43D.2020602@lwfinger.net> <512437FA.2030105@lwfinger.net> <5124782D.3050803@lwfinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 In-Reply-To: <5124782D.3050803@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: * Larry Finger [20.02.2013 08:32]: > On 02/20/2013 12:26 AM, G?bor Stefanik wrote: > > > >Is this an issue that vendor drivers are also vulnerable to? If it is > >a firmware issue, I would certainly think so. > > I also think so, at least if they are using the firmware version that > Bastian is using. His logs don't have that info in them, but I > certainly saw the problem on my BCM4312 using firmware 508.154 from > 2009. Another test this morning with heavy downloading (but tcp only) show slot usage auf max 204/256. we are using firmware "version 666.2 (2011-02-23 01:15:07)" which is OpenWrt's default for b43. see here the full logs, including minstrel output and dmesg: http://intercity-vpn.de/files/openwrt/b43test2.dmesg.txt if a slot needs ~2500 bytes, so 256 slot are only 640kb which seems ok to me. ofcourse it raises the memory consumption by 500kb, but now the router is useful 8-) thank you! bye, bastian