Return-path: Received: from mail-qw0-f46.google.com ([209.85.216.46]:38177 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752701Ab1EGIYo convert rfc822-to-8bit (ORCPT ); Sat, 7 May 2011 04:24:44 -0400 Received: by qwk3 with SMTP id 3so2333266qwk.19 for ; Sat, 07 May 2011 01:24:43 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4DC49CCD.7040906@lwfinger.net> References: <4DC49386.6070503@candelatech.com> <4DC49CCD.7040906@lwfinger.net> Date: Sat, 7 May 2011 10:24:43 +0200 Message-ID: (sfid-20110507_102449_361095_400EF86D) Subject: Re: Biescting between mainline and wireless-testing From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= To: Larry Finger Cc: Ben Greear , linux-wireless@vger.kernel.org, b43-dev Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: 2011/5/7 Larry Finger : > On 05/06/2011 07:34 PM, Ben Greear wrote: >> >> On 05/06/2011 04:51 PM, Rafał Miłecki wrote: >>> >>> I suspect we have some ugly (hard trackable) regression between >>> mainline and wireless-testing. It sounds impossible, but this seems to >>> affect Broadcom cards and looks like not related to ssb or b43. >>> >>> Today I've compiled 2.6.38 and 2.6.39-rc6, both work GOOD. >>> I've compiled wireless-testing and it failed, BAD. >>> I've reverted all recent ssb patches from top and it still fails BAD. >>> >>> What would be the easiest way to try bisecting? I can see >>> wireless-testing merges mainline quite often. Can I use some trick on >>> checkouted wireless-testing? Do I have to checkout mainline and merge >>> wireless-testing into it? Something even different? >>> >> >> git bisect can handle it...I've spent some quality time finding >> bugs in ath9k with that lately... > > The other thing to do is to see if branching wire-testing to 2.6.38 results > in a workable system. I've beed testing clean 2.6.38, so this should be GOOD. Hm, maybe this is a good idea? Probably a few patches more to test, but should not be more than 1 or 2 bisect steps. > What card fails? I've been busy with Realtek hardware lately and have not > run very much with Broadcom, but my 4311 worked earlier this week. This is really ugly. We are performing following scenario: modprobe wl; connect; download sth small; rmmod wl; modprobe b43; connect; try to download 2GB With 2.6.38 and 2.6.39 usually whole 2GB gets downloaded, sometimes card disconnects after 1GB. With wireless-testing it fails after a minute or earlier. I've tried reverting every ssb patch that is present in wireless-testing only (including first patch: "serdes workaround"). Card is 14e4:4315 (BCM4312). -- Rafał