Return-path: Received: from mail.candelatech.com ([208.74.158.172]:53686 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755259Ab2C1TKN (ORCPT ); Wed, 28 Mar 2012 15:10:13 -0400 Message-ID: <4F73620D.507@candelatech.com> (sfid-20120328_211018_039571_C9F11B1E) Date: Wed, 28 Mar 2012 12:10:05 -0700 From: Ben Greear MIME-Version: 1.0 To: Johannes Berg CC: Bryan Phillippe , linux-wireless Subject: Re: bss_info_change_notify warning (hacked 3.3.0-rc5+) References: <4F57B7E6.1050103@candelatech.com> <4F735EF5.3010708@candelatech.com> <1332961193.3479.40.camel@jlt3.sipsolutions.net> In-Reply-To: <1332961193.3479.40.camel@jlt3.sipsolutions.net> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 03/28/2012 11:59 AM, Johannes Berg wrote: > On Wed, 2012-03-28 at 11:56 -0700, Ben Greear wrote: >> On 03/07/2012 11:45 AM, Bryan Phillippe wrote: >>> >>> Yes, it's a known problem. It's very reproducible for me on a non-hacked 3.3-rc1 as well: changing from AP to client mode, or setting up multiple APs, or changing from 2.4Ghz to 5Ghz all seem to trigger this warning with various stack traces. >> >> I'm still seeing this and related warnings on 3.3.0. At least some >> of them comes from calls the 'hostapd' process makes (I printed >> current->comm in the warning). >> >> I am not having luck writing a simple script that reproduce this, >> but my application that creates a VAP and bunch of virtual station >> hits it every time on startup. >> >> Bryan: Do you have a simple script that reproduces this problem? >> >> Johannes: Any ideas on likely causes of this problem? Might help >> me zero in on the problem quicker... > > Hm. Maybe this is the problem? > > http://p.sipsolutions.net/d432de678ae3ff17.txt I don't see any code that matches that in 3.3.0 (nothing with nl80211_start_ap, for instance) Thanks, Ben > > johannes -- Ben Greear Candela Technologies Inc http://www.candelatech.com