Return-path: Received: from mga03.intel.com ([143.182.124.21]:5192 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753144Ab1JQTge (ORCPT ); Mon, 17 Oct 2011 15:36:34 -0400 Subject: Re: 3.1.0-rc9+ : wlan stops working w/o any error messages From: wwguy To: Toralf =?ISO-8859-1?Q?F=F6rster?= Cc: David Rientjes , werner , "ilw@linux.intel.com" , "linux-wireless@vger.kernel.org" , "linux-kernel@vger.kernel.org" In-Reply-To: <201110170952.43916.toralf.foerster@gmx.de> References: <201110152119.58509.toralf.foerster@gmx.de> <201110170931.59534.toralf.foerster@gmx.de> <201110170952.43916.toralf.foerster@gmx.de> Content-Type: text/plain; charset="UTF-8" Date: Mon, 17 Oct 2011 12:30:47 -0700 Message-ID: <1318879847.17584.3.camel@wwguy-ubuntu> (sfid-20111017_213649_172304_F8C5656A) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2011-10-17 at 00:52 -0700, Toralf Förster wrote: > Toralf Förster wrote at 09:31:58 > > > What does "iwconfig" show? > > And this is the state if the netwerk stops working : > > wlan0 IEEE 802.11abgn ESSID:"IBM" > Mode:Managed Frequency:2.462 GHz Access Point: 00:21:55:AC:8B:80 > Bit Rate=54 Mb/s Tx-Power=15 dBm > Retry long limit:7 RTS thr:off Fragment thr:off > Encryption key:off > Power Management:off > Link Quality=45/70 Signal level=-65 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:77 Missed beacon:0 > > When the problem happen, could you please dump the tx_queue status in debugfs and send us the information In order to dump the the tx_queue, please do the following 1. make sure you compile your kernel with CONFIG_IWLWIFI_DEBUGFS=y 2. unload and reload the "iwlagn" module 3. cd to /sys/kernel/debug/ieee80211/phyX/iwlwifi/debug (phX: "X" based on your system) 4. "$sudo cat tx_queue" to show the current tx queue status Thanks Wey