From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:43296 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751498AbYEaUWL (ORCPT ); Sat, 31 May 2008 16:22:11 -0400 Subject: Re: Wireless-testing's b43 panics in b43_generate_txhdr on packet transmit From: Johannes Berg To: Michael Buesch Cc: Pavel Roskin , Stefanik =?ISO-8859-1?Q?G=E1bor?= , linux-wireless , "bcm43xx-dev@lists.berlios.de" , linux-kernel@vger.kernel.org In-Reply-To: <200805311954.46639.mb@bu3sch.de> References: <69e28c910805310723j2b721030x2609cc9e866abafa@mail.gmail.com> <200805311841.46740.mb@bu3sch.de> <1212252636.2766.10.camel@rd> <200805311954.46639.mb@bu3sch.de> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-fPR82+C+HKQChBKZuqVe" Date: Sat, 31 May 2008 22:22:02 +0200 Message-Id: <1212265322.7672.2.camel@johannes.berg> (sfid-20080531_222217_784848_1B5A62A7) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-fPR82+C+HKQChBKZuqVe Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Sat, 2008-05-31 at 19:54 +0200, Michael Buesch wrote: > On Saturday 31 May 2008 18:50:36 Pavel Roskin wrote: > > On Sat, 2008-05-31 at 18:41 +0200, Michael Buesch wrote: > > > On Saturday 31 May 2008 18:34:29 Stefanik G=C3=A1bor wrote: > > > > "BUG: unable to handle kernel NULL pointer dereference at 00000004 > > > > IP: [] :b43:b43_generate_txhdr+0x6a9/0x790 > > >=20 > > > So can you put a few printks into the function to see where it derefe= rences > > > a NULL pointer? (or use gdb to lookup the offset). > >=20 > > u8 key_idx =3D info->control.hw_key->hw_key_idx; > >=20 > > info->control.hw_key is NULL. >=20 > Is a NULL pointer supposed to tell "do not encrypt", or is this a mac8021= 1 bug? It's probably a bug. johannes --=-fPR82+C+HKQChBKZuqVe Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIVAwUASEGzaaVg1VMiehFYAQJklxAAtvK2Tewxn1aSc/vyL5lPUmg1uRKqV5lh RgI5eq1ZMDKGlYEleJa2SJnxFayVFfSjN+shiw/J3O905p7XJN1KzhAd1aT6+boB i0Mu+yx25ti5UVoqs1PxAmMI99FCp41CrdK/YXe/Oavb1F80SceT29RlfGztI7Ph IFA2CdSRxn2WkOtzLsy8ei4eHjraayjQgnDiIW9RQXRWcA7qW//EFAg3paCEq6DC g5I3NpBeEhndplf7jbJY2RE++qnKWAcMfDRBeENsl/NjdIBj6jxMLSV/o/hJst60 dsBHT8kmEk78iQv333M50tDJGd+NRwtlXGxv0Vt52eAv51I4S0TQ4whs8PneqqnA oCoj8tLZmbH9+9nYkFxi/9aHjEc5eS9MzLf1I42pLs5Mcwa+WY5lorQBC5fIe3rG bBVMK0l5k+61qGve4yZTl8khd3W/ONhHVSrPUy4FXFlYe48sSMlzDsZOhvCqq3/E FYrnVZyq1cEPkMTqT96f37VuWO9aY6n0bCWRUHr0RCt1rBvJZxz0E/cQBAC8e/A4 nhoVjYSTjK0hy/1q2wJrQYN22LmrY+Q5XdDFY9VAqBxk3uUTWhWqhxUywgxlL3YF txVc8X8pSYWCzsGntvuuEzrJWoBhMd+7FDsetJXfD3vEzndvkT3HDNkZChC4lM5C OV6iBOAxowo= =Yszy -----END PGP SIGNATURE----- --=-fPR82+C+HKQChBKZuqVe--