Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751313Ab3JWFlp (ORCPT ); Wed, 23 Oct 2013 01:41:45 -0400 Received: from services.gouders.net ([141.101.32.176]:48622 "EHLO services.gouders.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750935Ab3JWFln (ORCPT ); Wed, 23 Oct 2013 01:41:43 -0400 From: Dirk Gouders To: Simon Wunderlich Cc: Simon Wunderlich , Simon Wunderlich , Mathias Kretschmer , Johannes Berg , Linux Kernel Subject: Re: [BUG bisected] WARNING: CPU: 0 PID: 1550 at net/wireless/chan.c:373 cfg80211_chandef_usable+0x30/0x15f() In-Reply-To: <201310222200.55773.sw@simonwunderlich.de> (Simon Wunderlich's message of "Tue, 22 Oct 2013 22:00:55 +0200") References: <20131022132303.GA14762@pandem0nium> <201310222200.55773.sw@simonwunderlich.de> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) Date: Wed, 23 Oct 2013 07:41:54 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2332 Lines: 72 Hi Simon, Simon Wunderlich writes: > Hey Dirk, > >> No need for censorship, I did some quick tests and stripped down my >> wpa_supplicant.conf to a single entry. With this configuration I get a >> lot of traces: >> >> ctrl_interface=/var/run/wpa_supplicant >> eapol_version=1 >> ap_scan=1 >> fast_reauth=1 >> >> network={ >> frequency=2412 >> group=TKIP >> key_mgmt=NONE >> mode=1 >> pairwise=NONE >> ssid="Nokia_n9" >> } >> >> I will also attach a dmesg output of my tests. >> >> > * your wpa_supplicant command line parameters when running >> >> It is running with a wpa_cli like this: >> >> /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf \ >> -W -B -i wlp4s0 -P /var/run/wpa_supplicant-wlp4s0.pid >> /usr/bin/wpa_cli -a /etc/wpa_supplicant/wpa_cli.sh \ >> -p /var/run/wpa_supplicant -i wlp4s0 -P /var/run/wpa_cli-wlp4s0.pid -B >> > > Thanks a lot for this, I could reproduce the issue and fix it, will send the fix > in a minute - please try and report back. thanks a lot, will send my test result immediately. > Just two notes on your setup in case you are interested: Yes, I am interested - I was just afraid to ask, because I didn't want to cause too much noise with probably trivial problems ;-) > * Your wpa-supplicant setup looks a little like an old WPA-NONE setup, but > this is not supported anymore and will not encrypt your messages. Please have > a look at IBSS/RSN if you want encryption. Yes, I very rarely use that connection and always have in mind that it is unencrypted. I will have a look at this but expect the mobile phone side to be the hard one to get it to offer reliable encryption. > * Your wpa_supplicant uses the old wext interface to the kernel. This is > deprecated, it would better to use the (not so) new nl80211 interface instead. > You will also get goodies such as 802.11n rates in ad-hoc mode if your > hardware supports it. :) Thats good to know, I will change my setup accordingly. Thanks again for your help, Dirk > Thanks again for reporting, > Simon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/