Return-path: Received: from ti-out-0910.google.com ([209.85.142.184]:24886 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758544AbYGOFwB (ORCPT ); Tue, 15 Jul 2008 01:52:01 -0400 Received: by ti-out-0910.google.com with SMTP id b6so2504142tic.23 for ; Mon, 14 Jul 2008 22:51:57 -0700 (PDT) Message-ID: (sfid-20080715_075220_752010_881B5573) Date: Tue, 15 Jul 2008 13:51:56 +0800 From: "Dave Young" To: "Mattias Nissler" Subject: Re: mac80211 : WARN at net/mac80211/rate.h:153 Cc: "Michael Buesch" , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, "Stefano Brivio" In-Reply-To: <1216055849.4435.7.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 References: <20080714075010.GA3559@darkstar> <200807141614.51628.mb@bu3sch.de> <1216055849.4435.7.camel@localhost> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Jul 15, 2008 at 1:17 AM, Mattias Nissler wrote: > On Mon, 2008-07-14 at 16:14 +0200, Michael Buesch wrote: >> CCing PID guys. >> I've seen several people hitting this. What's the meaning of this warning? > > It basically means the rate control cannot find any rate in > local->hw.wiphy->bands[local->hw.conf.channel->band] that is supported > by the sta in question. Normally this should not happen. I guess the > reason is that the supported rates bits in the sta info are all zero, > which would probably be a bug. I haven't seen this here, but I don't use > the IBSS code either. To further investigate this, you could the > following just before the WARN_ON: > > printk(KERN_DEBUG "supported rates bitmask: %08x\n", > sta->supp_rates[sband->band]); Yes, as you said, I get: supported rates bitmask: 00000000 > > Mattias > > -- Regards dave