Return-path: Received: from nf-out-0910.google.com ([64.233.182.188]:4521 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753579AbYBZVNv (ORCPT ); Tue, 26 Feb 2008 16:13:51 -0500 Received: by nf-out-0910.google.com with SMTP id g13so1237690nfb.21 for ; Tue, 26 Feb 2008 13:13:49 -0800 (PST) Message-ID: (sfid-20080226_211355_172819_213EAE04) Date: Tue, 26 Feb 2008 21:13:48 +0000 From: "Chris Clayton" To: linville@tuxdriver.com Subject: Re: 2.6.25-rc2 regression in rt61pci wireless driver Cc: ivdoorn@gmail.com, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, stefano.brivio@polimi.it, johannes@sipsolutions.net In-Reply-To: <20080226194838.GD3013@tuxdriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <200802252104.32416.chris2553@googlemail.com> <200802261911.39577.chris2553@googlemail.com> <20080226194838.GD3013@tuxdriver.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On 26/02/2008, John W. Linville wrote: > On Tue, Feb 26, 2008 at 07:11:39PM +0000, Chris Clayton wrote: > > > Sorry, but that's not the case. I find the same results as without the > > patches. With the parameter set to 'pid', the network connection fails very > > quickly, but with it set to 'simple' I can ping and ftp files to and from my > > laptop as much as I like and the connection stays up. In fact, if anything > > the patches seem to have made the network even more fragile, in that it fails > > almost instantly once I start some network activity ( < 10 pings). > > > > I'm sure this is not the hardware - it works perfectly with Windows XP, with > > 2.6.23.14 plus the out-of-tree rt61 driver from serialmonkey, with the > > in-tree driver from 2.6.24.x and with 2.6.25-rc3 with the mac82011's > > ieee80211_default_rc_algo parameter set to 'simple'. > > > At last! Vindication for insisting that we keep 'simple' around! > Bwahahaha! :-) > It's nice to be able to make someone happy :-) > So, am I to understand that 'pid' works find for you with rtl8180? Yes John, using the rtl8180 driver I get reliable network performance with either 'pid' or 'simple'. With the rt61pci driver, I find that 'simple' provides a reliable network, but 'pid' simply does not work. So keeping 'simple' around gets my vote too. > If so, then I wonder if Stefano and Ivo can help us figure-out > what kind of problem is sensitive to both driver _and_ rate control > algorithm? > And I will help in any way I can, providing diagnostics and trying patches. > Thanks, > > John > > -- > John W. Linville > linville@tuxdriver.com > -- Beauty is in the eye of the beerholder.