Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:38863 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934650AbZHEREc (ORCPT ); Wed, 5 Aug 2009 13:04:32 -0400 Subject: Re: Status of 802.11s in wireless-testing? From: Johannes Berg To: "John W. Linville" Cc: xxiao , linux-wireless@vger.kernel.org In-Reply-To: <20090805165021.GA20338@tuxdriver.com> References: <2f1373ed0908042145pc83adc5qd968e3bf8d0ce3c7@mail.gmail.com> <175701.5780.qm@web55308.mail.re4.yahoo.com> <20090805165021.GA20338@tuxdriver.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-GjyUw/menBAMCT8wdzmn" Date: Wed, 05 Aug 2009 19:04:26 +0200 Message-Id: <1249491866.6902.23.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-GjyUw/menBAMCT8wdzmn Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2009-08-05 at 12:50 -0400, John W. Linville wrote: > On Wed, Aug 05, 2009 at 09:08:54AM -0700, xxiao wrote: > > I didn't see patches from open80211s project for a while, which > > means it will break as the rest mac80211/drivers are evolving quickly. >=20 > You may be right, but it _should_not_ mean that -- at least not > necessarily. Yes, there will be accidental breakage from time to time. > But developers ought to keep mesh in mind when making changes and > they should be "on the hook" to fix whatever breaks. Right now, except from the stuff Luis had broken and fixed, the real problem is that there are a bunch of bugs that appear to have been in the code forever, just never noticed -- for instance the code can end up calling synchronize_rcu() in an atomic section. This is the reason for disabling it -- it can splatter all over the scheduler if that happens, and it's not clear to me that it cannot happen. It seems not to happen in _most_ scenarios, but I've certainly caused it to happen by not beaconing, for instance. johannes --=-GjyUw/menBAMCT8wdzmn Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJKebuXAAoJEODzc/N7+QmaRdYP/imtvj1dkodmUfpvCQLFTes/ u8Udfv0yi7Sd/AQFevCS839IhI5KiDVc6uCH+89+O1Owpx/9oBDRiJvrG7OUzCQ3 fmeTAuXmt7Gy+PBlUxT2RgwPZ1+zGcC8Vs6S3PtM5XrYRFdFRF3hO+mT5xdppYN6 RqIdWvSj/mvr5LgtRTtv5aiFmiWjA9u27+fZSCbMDtC1OkBDiWODIvgxYONA98ue 2UPM7vTmSrcbBX5+gfqhSpzA5rqwzucTbW34XMGy+9SjNjOu80AZJuTvCee0tmx9 0pl7c3lRZ3oJIZO9lgVkqOAjYYv4koMAXm307w3utIHiRdfXtXhwwW0I+R9e0Bwm UvVfOGSeIUg2v6ndq7b/NB0bKgHOnVjWgUCO+/dt5NpVzqOXrMAwwDxSwJWAtqab RX/8n+91Mn3uSn/+WMA5nvisS9vb7ruoWZvkX+ZjfPujhVob1gxLkJaQS4qulVJm rAoNSBjmQC03sHFQsp/Mi8my++z+80DA6Se6e7jh4jbPSMmzd+gs//pigBIhd5dq ry1bKNSAl1cTkGLcwy9Q0XZCgN3K9qbB5JytyTICJd1n0+TJyNSyD94jNS2foGbY iWLpNif2op2s6/31M3z940f4qMpD1CWco+HaOwYw6TK3bQJQZy2+afVZlXDfwPCQ aPD+tHlEAVPPW3PYeFn3 =c0JZ -----END PGP SIGNATURE----- --=-GjyUw/menBAMCT8wdzmn--