Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:40612 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750796AbZEFIWt (ORCPT ); Wed, 6 May 2009 04:22:49 -0400 Subject: Re: oops during stress test - today's wl From: Johannes Berg To: "Luis R. Rodriguez" Cc: Vasanthakumar Thiagarajan , linux-wireless , Vasanth Thiagarajan In-Reply-To: <43e72e890905052319r7c6b0932gf00822dd29536587@mail.gmail.com> References: <43e72e890905042005vb96f57aid70c476e38685dfe@mail.gmail.com> <1241509306.25337.4.camel@johannes.local> <43e72e890905051227n11b128bap4d250e66294a29ce@mail.gmail.com> <43e72e890905051829k5df86692m34209f871e384127@mail.gmail.com> <20090506060646.GF18158@vasanth-laptop> <43e72e890905052319r7c6b0932gf00822dd29536587@mail.gmail.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-QUmHCvpXrd7hahNzUgQ6" Date: Wed, 06 May 2009 10:22:16 +0200 Message-Id: <1241598136.4969.5.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-QUmHCvpXrd7hahNzUgQ6 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2009-05-05 at 23:19 -0700, Luis R. Rodriguez wrote: > > This is protected by rcu_read_lock()? >=20 > I was under the impression this would protect against deletion of the > sta but not modification of its parts but I am not too sure. That's true. There's a possibility that mac80211 hands you multiple frames at the _same_ time, on different CPUs, due to multiqueue. johannes --=-QUmHCvpXrd7hahNzUgQ6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJKAUi0AAoJEKVg1VMiehFYirgP/16klwDb9DALywd5wdz1aD7j 3Xcl7DtPTDK06eW+Y74KYXnV34Fw6N8/rnMedXL3PcS9FcjiFyGyR3Kw1F3OoPAx NKiUeFEuKp9r+tez08cW9GrbEw6S8XEoILC2dBX4unoVex5mWlW1ackIyLNLR3r5 W2U2tmf1FxFjPoWvI/2dUA3WyQjQFzZ8NyrTLB5VU9EtCWzXwFzAK2TRI+6w6xrm OvtUAYJzxTi38l4l44fRqnQsdwunwgz3A3Xjn4pEVltc5UBtzHm6/6A/TiAHq1wF Hd04l1aJg4lX3FLWJ1UEbUop70yoTdV5CLC9VUO7zskuIEDSIX+oY/ep6sIRHi1J FsvztO0jQYwkcTwFlAjV/FtsVQCgZoCONpSCvRt7gZ2o8cpDSOSCBZkfbg61aKRz j+wbyXGgyilVlgXXg/j5IRBlMtRQx6hIuW7ie5xSGEJToClmnYMDTIe06tvVN7Hz Ht0UYEoxoM+/9UQrIJ3d5NdqQAxGKwAcdgyvwaCxwz38515qPc4FgSexky1Z6OOE ahFxvJA9mZeHV9QBKHJOU4Hdo4Nd/ZAzv1zIWGuKOKC0v9ncLwKZfUMRW0xqwV2e 0tWGmM8yW4mnzFLB35yT7zs9sjw7x68xDborQt2isnQsm3Vn2yO+76qosZ6S20To qdcHBEQyyLmfcLHbgTyf =ddbx -----END PGP SIGNATURE----- --=-QUmHCvpXrd7hahNzUgQ6--