Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762183AbZCTKPa (ORCPT ); Fri, 20 Mar 2009 06:15:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761298AbZCTKPM (ORCPT ); Fri, 20 Mar 2009 06:15:12 -0400 Received: from xc.sipsolutions.net ([83.246.72.84]:60210 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761220AbZCTKPJ (ORCPT ); Fri, 20 Mar 2009 06:15:09 -0400 Subject: Re: 2.6.29-rc8: Reported regressions from 2.6.28 From: Johannes Berg To: Jeff Chua Cc: Ingo Molnar , Linus Torvalds , "Rafael J. Wysocki" , Linux Kernel Mailing List , Adrian Bunk , Andrew Morton , Kernel Testers List , Network Development , "John W. Linville" In-Reply-To: (sfid-20090320_110431_738151_8D365596) References: <1237143683.24621.7.camel@johannes.local> <20090315202603.GA9077@elte.hu> <1237317742.31814.28.camel@johannes.local> <1237455534.5100.56.camel@johannes.local> <1237537967.5100.135.camel@johannes.local> (sfid-20090320_110431_738151_8D365596) Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-yQMXHixSw2lKEUTiMnYT" Date: Fri, 20 Mar 2009 11:13:53 +0100 Message-Id: <1237544033.5100.143.camel@johannes.local> Mime-Version: 1.0 X-Mailer: Evolution 2.24.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3397 Lines: 84 --=-yQMXHixSw2lKEUTiMnYT Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2009-03-20 at 18:04 +0800, Jeff Chua wrote: > On Fri, Mar 20, 2009 at 4:32 PM, Johannes Berg > wrote: > > 1) It can't be before iwconfig which will result in "SET failed on > > device wlan0 ; Device or resource busy". > > So your point 1) confuses me. Can you > > explain that a little more? >=20 > This is what happened ... >=20 > # modprobe -r iwlagn > # modprobe iwlagn > # ifconfig wlan0 up > # iwconfig wlan0 mode Managed > Error for wireless request "Set Mode" (8B06) : > SET failed on device wlan0 ; Device or resource busy. Oh, ok, yes, you cannot change the mode while the interface is up. Though I guess setting it to the same mode should be accepted. Not that it matters, the default mode is "managed" anyway. > > As for 2), that is very very strange since ap auto channel auto is the > > default, so saying that before you do anything else should do anything > > at all. > > > > I suspect something is going on in the driver because the ifconfig orde= r > > matters and for mac80211, it shouldn't make a difference when the state > > machine is really started. I'll probably need to try to reproduce this, > > but to be honest between the varying failure modes, undefined wireless > > extensions semantics, etc. I'm not very confident I can. >=20 > I'll try all the different combination again for 2.6.28, and see if > it's the same, and on the other AP that seems harder to associate (but > works well in 2.6.28, and other OSs include Nokia phones ... so I > don't think it's the AP problem ... because it's been around a while > and gone thru many 2.6.xx). Yeah, I have to admit that an AP problem doesn't make much sense -- but the entire failure mode doesn't make much sense to me so far. > It worked so well before that I didn't even bother to think twice, and > I may have made silly mistakes along the way, so pardon me if I > confused you. No worries. It really should still work well. Can I convince you to try getting the packet dump I asked for in another mail? johannes --=-yQMXHixSw2lKEUTiMnYT Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJJw2xeAAoJEKVg1VMiehFYR0EP/3RyBDj/0qUpV46pBzb0Tdhg l7fdOFUo93Psc1nF3Jjh57XIWqftVDDNSUwfRcjhqolFTvP/FIxVL32LXcZh2Ilm WC64BNUwVg9JgdjRd/eqsS7fVNfiSM2zTqaaQTVDLc2P7YjGtnKVwhQdJuL2iRHp 8+0dJ8iqXuhaAvDX9cRfOIB1WUxi/5J1oPJ6RjvJZB88IqQng1YZgfgzvfR2SIPD 7bZRWbqadZE0ij/gaOYCjtb+95QB2O1EaVLJMghDjR8tKGq7KAeuWLXgBY9F67Gx 2njcdbuzJOvKfo0hkBDA8nalWXJu2kqHxpL9HwkTU0UQ1Q1g+Q4PydjHCBRmMFEL 86uCip289z/x/2KFSd8ZeUiPRSqYJ699hrF2wh9m2WOso19W2LL/3lmbxj/ruEbr 1tgTiuWlmLim0aFpnKqKL+E9AhgNzW17GtkNi+AogavdqOs68dTsqZ2WCgPk8CbA y7w6YC9KL7P0OkSSOmFpsooDAYFlr408ABq+Z/FR9dYAgHVWlAXPbeh0/BjIHR5P A5VjiRKP7oN29oFICS6j673rmT7S2ZLF4owbU+uqQbUQZkZQoxDag8XiA6R3MnhI j9q7CC9A8V6atyoUpmyNuytoF6U8XmX1T/tUEqFGGzgC8HGHWNqXGEMT1IQC4zo2 USNE9QQYIqVkUNcObeDf =sbgw -----END PGP SIGNATURE----- --=-yQMXHixSw2lKEUTiMnYT-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/