From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934036AbXGRQPI (ORCPT ); Wed, 18 Jul 2007 12:15:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761033AbXGRQOy (ORCPT ); Wed, 18 Jul 2007 12:14:54 -0400 Received: from crystal.sipsolutions.net ([195.210.38.204]:43611 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760958AbXGRQOx (ORCPT ); Wed, 18 Jul 2007 12:14:53 -0400 Subject: Re: Occational lockups during boot with post 2.6.22 kernels From: Johannes Berg To: Chuck Ebbert Cc: Peter Osterlund , linux-kernel@vger.kernel.org, Bcm43xx-dev@lists.berlios.de, "John W. Linville" , Netdev In-Reply-To: <469E2AAB.2010408@redhat.com> References: <469E2AAB.2010408@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-cFIavx7nPsrz2d1k/Gh7" Date: Wed, 18 Jul 2007 17:51:10 +0200 Message-Id: <1184773870.4002.8.camel@johannes.berg> Mime-Version: 1.0 X-Mailer: Evolution 2.10.2 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-cFIavx7nPsrz2d1k/Gh7 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2007-07-18 at 10:58 -0400, Chuck Ebbert wrote: > On 07/17/2007 08:20 PM, Peter Osterlund wrote: > > Current -git kernels sometimes lock up on my computer during boot. I > > guess it happens about 10-20% of the time. I first saw this maybe a > > week ago, but never with kernels <=3D 2.6.22. > >=20 > > The last reported info on the console is that named is started. > > SysRq-T still works and reports the non-sleeping tasks below. > >=20 > > My guess is that wpa_supplicant and events/0 deadlock and later the > > named thread also hangs when it needs a deadlocked resource. > >=20 > > I'm using the bcm43xx driver. > > =20 > > No lockdep errors are reported before the lockup. Earlier during boot > > the kernel reports: > >=20 > > Good, all 218 testcases passed! | >=20 > Try this, it should at least detect the problem: >=20 > http://lkml.org/lkml/2007/7/17/202 > http://lkml.org/lkml/2007/7/17/204 > http://lkml.org/lkml/2007/7/17/203 >=20 > It's a known bug in wireless/80211, not sure when it will be fixed. Heh, yes, that's the patchset that came from this bug :) A patch for this is available but due to process issues hasn't percolated up yet. See http://thread.gmane.org/gmane.linux.kernel.wireless.general/3315/focus=3D33= 19 johannes --=-cFIavx7nPsrz2d1k/Gh7 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iD8DBQBGnjbu/ETPhpq3jKURAkewAJ4upZrVdlFmk1Iu8lkl57u4JWVe9wCaA1Ja LtdjTGABatX+Da4zjdqWh40= =e7Hh -----END PGP SIGNATURE----- --=-cFIavx7nPsrz2d1k/Gh7--