Return-path: Received: from e23smtp06.au.ibm.com ([202.81.31.148]:41170 "EHLO e23smtp06.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752202AbZCaDwp (ORCPT ); Mon, 30 Mar 2009 23:52:45 -0400 Date: Tue, 31 Mar 2009 09:21:40 +0530 From: Dhaval Giani To: Bob Copeland Cc: Jiri Slaby , Dhaval Giani , linville@tuxdriver.com, davem@davemloft.net, linux-wireless@vger.kernel.org, ath5k-devel@venema.h4ckr.net, Nick Kossifidis , "Luis R. Rodriguez" , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] ath5k: fix hw rate index condition Message-ID: <20090331035140.GC4199@linux.vnet.ibm.com> (sfid-20090331_055250_289362_CA8A0659) Reply-To: Dhaval Giani References: <1231338965-796-1-git-send-email-jirislaby@gmail.com> <20090107152208.GB4207@linux.vnet.ibm.com> <4964CAAA.3040801@gmail.com> <25891f3e0902012357n21e7bc2fmc59fb2a842631651@mail.gmail.com> <20090215134702.GA10180@hash.localnet> <49A9C3D7.8060706@gmail.com> <20090330085952.GB3837@linux.vnet.ibm.com> <20090330175951.GB4199@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Mar 30, 2009 at 02:13:35PM -0400, Bob Copeland wrote: > On Mon, Mar 30, 2009 at 1:59 PM, Dhaval Giani wrote: > > ok, so my kernel does hve this patch applied, and this is what I ge= t, > > > > =A0------------[ cut here ]------------ > > =A0WARNING: at include/net/mac80211.h:1956 minstrel_get_rate+0xa1/0= x4b9 [mac80211]() >=20 > I believe this is something different (tx path not rx). I think it's > that minstrel rate table bug again, which we never solved for ath5k. >=20 > Are you using adhoc or managed mode? Do you have the slab/slub debug= ging > options turned on? Any steps that consistently reproduce it? Do you > get any warnings with PID controller? >=20 [dhaval@gondor ~]$ iwconfig wlan0 wlan0 IEEE 802.11abg ESSID:"linksys_SES_62338" Mode:Managed Frequency:2.462 GHz Access Point: 00:1A:70:D6:= 2D:06 Bit Rate=3D36 Mb/s Tx-Power=3D23 dBm Retry min limit:7 RTS thr:off Fragment thr=3D2352 B Power Management:off Link Quality=3D100/100 Signal level:-49 dBm Noise level=3D-= 96 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 [dhaval@gondor ~]$ [dhaval@gondor linux-2.6]$ grep -i slub .config CONFIG_SLUB_DEBUG=3Dy CONFIG_SLUB=3Dy # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set [dhaval@gondor linux-2.6]$ Am not sure what the PID controller is, and google gave me a number of results, which did not make too much sense in the context. Yes, I think I know how to reproduce it, but I am not sure what is the real cause. One way I have found of reproducing it is to connect to open networks, but it does not happen always. At home, when my network is set to open, I do not see this issue, whereas at the airport, kaboom. I've also seen it on LEAP networks, but there were also a few open networks around. This warning is generally accompanied by a disconnect from the LEAP connected network, and then the system reconnects. Let me know if you have patches, I can give them a run and report back. Thanks, --=20 regards, Dhaval -- To unsubscribe from this list: send the line "unsubscribe linux-wireles= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html