Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:58284 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753574Ab1CGJv3 (ORCPT ); Mon, 7 Mar 2011 04:51:29 -0500 Subject: Re: WARN_ON in ieee80211_scan_completed_finish triggered From: Johannes Berg To: Michael Buesch Cc: "linux-wireless@vger.kernel.org" , Felix Fietkau , Ben Greear In-Reply-To: <1299443142.1292.6.camel@marge> References: <1299443142.1292.6.camel@marge> Content-Type: text/plain; charset="UTF-8" Date: Mon, 07 Mar 2011 10:51:25 +0100 Message-ID: <1299491485.3790.2.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, 2011-03-06 at 21:25 +0100, Michael Buesch wrote: > I just noticed the following warning on my p54spi device > with compat-wireless-2011-02-25 (OpenWrt): > > [ 1182.826599] WARNING: at net/mac80211/scan.c:310 ieee80211_rx_bss_free+0x20c/0x4b8 [mac80211]() Unfortunately the backtrace gives no hint at all, is it possible that there was an ifdown that canceled the scan? Since I've never seen this before, I'm tempted to say Ben's changes caused it to become possible, but I'm not certain. Still, Ben, can you look at this please? johannes