Return-path: Received: from smtp1.linux-foundation.org ([207.189.120.13]:52316 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752772AbXEZQOA (ORCPT ); Sat, 26 May 2007 12:14:00 -0400 Date: Sat, 26 May 2007 09:13:09 -0700 From: Andrew Morton To: Michael Buesch Cc: Uwe Bugla , Maximilian Engelhardt , linux-wireless@vger.kernel.org, "linux-kernel" Subject: Re: BUG in 2.6.22-rc2-mm1: NIC module b44.c broken (Broadcom 4400) Message-Id: <20070526091309.0af20971.akpm@linux-foundation.org> In-Reply-To: <200705261750.48816.mb@bu3sch.de> References: <20070524195616.234280@gmx.net> <200705260700.28777.mb@bu3sch.de> <200705261240.55153.uwe.bugla@gmx.de> <200705261750.48816.mb@bu3sch.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sat, 26 May 2007 17:50:48 +0200 Michael Buesch wrote: > Andrew, > > I am going to ignore Uwe from now on. It's simply impossible > to debug the problem the way he is responding. > Well, I'm not the first person in the Linux community adding > him to the killfile, ... . Well yes, there are some personality issues here ;) But the main thing is to struggle on and fix this bug, wherever it lies. > I ask to try wireless-dev, as the driver works perfectly fine > for me there, but he refuses to try it, too. So I'm stuck. I don't think he knows how to obtain it. Uwe, http://userweb.kernel.org/~akpm/git-wireless.patch.gz is the current wireless tree. That's a patch against 2.6.22-rc3. Could you please test that? If that works then we know that the bug probably lies outside the b44 driver (or it was subsequently fixed). > I already tried your -mm kernel, but it crashes on my machine > for other reasons. (Yeah, I should look into them, too :P ) err, please do. Just the oops trace would be a start. > Andrew, is it possible that the breakage was introduced in the > merge process somehow? Didn't the patch apply cleanly? Are there > other changes to b44 I should know about in your tree? Only git-wireless.net modifies b44.c but if we're having IRQ assignment problems then we'd need to look elsewhere. I guess you could diff rc2-mm1's b44.c against the expected version. > If it is really impossible to debug this problem, I'd like to > suggest you to drop the b44-ssb port completely. Well we don't know if that'll fix it. I believe that Uwe said that reverting the b44.c changes from rc2-mm1 fixes things for him? Odd, but it still doesn't rule out acip/pci/platform changes as being the cause.