Return-path: Received: from mail-yx0-f174.google.com ([209.85.213.174]:46022 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750941Ab1LJRmH (ORCPT ); Sat, 10 Dec 2011 12:42:07 -0500 Received: by yenm11 with SMTP id m11so2862458yen.19 for ; Sat, 10 Dec 2011 09:42:06 -0800 (PST) Message-ID: <4EE399EB.2060100@lwfinger.net> (sfid-20111210_184211_270459_F8C99B29) Date: Sat, 10 Dec 2011 11:42:03 -0600 From: Larry Finger MIME-Version: 1.0 To: Mikael Abrahamsson CC: Nikolay Martynov , linux-wireless@vger.kernel.org Subject: Re: Spontaneous disconnections debugging References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 12/10/2011 05:34 AM, Mikael Abrahamsson wrote: > On Fri, 9 Dec 2011, Nikolay Martynov wrote: > >> I have an intel 5300 as client and openwrt ath9k based router as AP. Some >> times (once in several days) I get wireless connection spontaneously dropped >> with this message on client: wlan1: deauthenticating from XX:XX:XX:XX:XX:XX by >> local choice (reason=3) > > Ubuntu 11.10 on a Thinkpad X200 with Intel 5300: > > $ dmesg | grep -i deauthenticating | grep "local choice" | wc -l > 44 > $ uptime > 18:31:07 up 1 day, 7:30, 3 users, load average: 0.08, 0.03, 0.05 > > $ dmesg | grep "local choice" | cut -d ] -f2- | sort | uniq -c > 44 wlan0: deauthenticating from 00:21:91:dc:94:55 by local choice (reason=3) > 56 wlan0: disassociating from 00:21:91:dc:94:55 by local choice (reason=3) > >> Not that this really creates problems for me, connection is quickly >> restored and otherwise works fine. > > For me it also mostly works fine, but sometimes I have to unload/reload the > iwlagn module to make things work again, and sometimes the wifi LED just turns > off and requires a reboot to get working again. > > At least the 5300 stuff works much better in 3.0 than it did in 2.6.38. I would suggest that both of you try the bleeding-edge compat-wireless, or the kernel from the wireless-testing git tree, before doing any debugging. I'm not involved in iwlagn development, but there have been a lot of changes since 3.0. Larry