Return-path: Received: from mx1.redhat.com ([66.187.233.31]:33624 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765832AbYBTQMp (ORCPT ); Wed, 20 Feb 2008 11:12:45 -0500 Subject: Re: [Rt2400-devel] 2.6.25-rc2 regression in rt61pci wireless driver From: Dan Williams To: Chris Vine Cc: Ivo van Doorn , chris2553@googlemail.com, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, rt2400-devel@lists.sourceforge.net In-Reply-To: <1203462247.6397.15.camel@boulder.homenet> References: <200802191026.57640.IvDoorn@gmail.com> <200802191900.09543.chris2553@googlemail.com> <200802192046.14184.IvDoorn@gmail.com> <1203462247.6397.15.camel@boulder.homenet> Content-Type: text/plain Date: Wed, 20 Feb 2008 11:05:54 -0500 Message-Id: <1203523555.693.2.camel@localhost.localdomain> (sfid-20080220_161324_960677_8AA3E455) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2008-02-19 at 23:04 +0000, Chris Vine wrote: > On Tue, 2008-02-19 at 20:46 +0100, Ivo van Doorn wrote: > > Hi, > > > > [added rt2400-devel (rt2x00 development mailinglist) to the CC list.] > > > > > > > > I have a series of tests I would like to request from you, > > > > > > you mentioned you already enabled debugfs, and that is just what we need. ;) > > > > > > Please use attached script to create dumps of the hardware register contents. > > > > > > > > > > > > There are specific moments that should be dumped: > > > > > > - kernel 2.6.24 (last known working version for you). > > > > > > - kernel 2.6.25-rc2 (after ifup, before TX dies) > > > > > > - kernel 2.6.25-rc2 (after ifup, after TX dies) > > > > > > > > > > > > > > > > These diagnostics are attached, with obvious filenames. > > > > > > > > Thanks. I think I found something, please test below patch: > > > > > > > > > > I've tried the patch but, unfortunately, my wireless LAN still dies after a few pings. > > rt2x00 2.0.14 is broken with my rt73 stick in the vanilla 2.6.25-rc2 > kernel (not wireless-2.6/rt2x00 git). The modules load when I plug the > stick in but I then get a complete kernel lock up with two flashing > leds. Nothing is recorded to system logs. The last logged messages are > that usbcore has registered new interface driver rt73usb, and that the > rate control algorithm has been selected on phy0. This happens whether > the simple or pid mac80211 rate control algorithms have been chosen. > > This is a shame because 2.0.14 was working really well for me until the > mac80211 changes 2 or 3 weeks ago broke it. (Shortly followed by the > release of 2.1.*). Switch to a VT with Ctl+Alt+1, then plug the stick in, and take a picture of the panic if one shows up. _Something_ should show up on the VT. Dan