Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:35615 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754178Ab3AZUxZ (ORCPT ); Sat, 26 Jan 2013 15:53:25 -0500 Message-ID: <1359233629.8699.4.camel@jlt4.sipsolutions.net> (sfid-20130126_215331_414115_495E1635) Subject: Re: WARNING: at net/mac80211/agg-tx.c:685 ieee80211_start_tx_ba_cb From: Johannes Berg To: Kalle Valo Cc: linux-wireless@vger.kernel.org Date: Sat, 26 Jan 2013 21:53:49 +0100 In-Reply-To: <87vcakxzin.fsf@purkki.adurom.net> (sfid-20130126_065156_011641_62FC8674) References: <87vcakxzin.fsf@purkki.adurom.net> (sfid-20130126_065156_011641_62FC8674) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sat, 2013-01-26 at 07:51 +0200, Kalle Valo wrote: > Hi, > > I noticed this warning in the log just by accident, I haven't had any > problems. I'm running latest wireless-testing (commit 9d9540984a) on > thinkpad x230 with Intel 6205. > > [ 10.262245] wlan0: authenticate with 00:26:f2:f7:cf:b2 > [ 10.272891] wlan0: send auth to 00:26:f2:f7:cf:b2 (try 1/3) > [ 10.275093] wlan0: authenticated > [ 10.278751] wlan0: associate with 00:26:f2:f7:cf:b2 (try 1/3) > [ 10.282307] wlan0: RX AssocResp from 00:26:f2:f7:cf:b2 (capab=0x411 status=0 aid=3) > [ 10.303014] wlan0: associated > [ 10.303062] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready > [ 836.534120] wlan0: deauthenticating from 00:26:f2:f7:cf:b2 by local choice (reason=3) > [ 836.570864] ------------[ cut here ]------------ > [ 836.570894] WARNING: at net/mac80211/agg-tx.c:685 ieee80211_start_tx_ba_cb+0x1b5/0x240 [mac80211]() Smells like a race to me. We probably requested aggregation and then deauthenticated, thus killing the session data. Then the driver probably had a bug and said it started the session or something ... johannes