Return-path: Received: from main.gmane.org ([80.91.229.2]:50649 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751872AbZEQJIn (ORCPT ); Sun, 17 May 2009 05:08:43 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1M5cMK-00073h-Dc for linux-wireless@vger.kernel.org; Sun, 17 May 2009 09:08:40 +0000 Received: from cac94-1-81-57-151-96.fbx.proxad.net ([81.57.151.96]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 17 May 2009 09:08:40 +0000 Received: from castet.matthieu by cac94-1-81-57-151-96.fbx.proxad.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 17 May 2009 09:08:40 +0000 To: linux-wireless@vger.kernel.org From: Matthieu CASTET Subject: b43 : under high load, ack are lost Date: Sun, 17 May 2009 09:08:29 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, I use a 4306 (core rev 5) with compat-wireless-2009-05-08 as wireless driver and 4.150.10.5 firmware. My station is an airo card in wpa-psk mode (802.11b). After resolving my beacon problem [1], when I download at max speed my station disconnect from AP because "LostSync-MaxRetry". After looking in my station statistic it seems the retry (RetryLong) are due to noack received from the AP. Who is responsible to generate ack ? The firmware or the mac80211 stack ? Any idea to investigate this ? Thanks Matthieu [1] http://article.gmane.org/gmane.linux.kernel.wireless.general/32845