Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934215AbYBTUcg (ORCPT ); Wed, 20 Feb 2008 15:32:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934018AbYBTUbU (ORCPT ); Wed, 20 Feb 2008 15:31:20 -0500 Received: from smtp2.wanadoo.co.uk ([193.252.22.157]:22202 "EHLO smtp2.freeserve.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933971AbYBTUbS (ORCPT ); Wed, 20 Feb 2008 15:31:18 -0500 X-ME-UUID: 20080220203112618.970B2700008C@mwinf3104.me.freeserve.com Subject: Re: [Rt2400-devel] 2.6.25-rc2 regression in rt61pci wireless driver From: Chris Vine To: Dan Williams Cc: Ivo van Doorn , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, chris2553@googlemail.com, rt2400-devel@lists.sourceforge.net In-Reply-To: <1203523555.693.2.camel@localhost.localdomain> References: <200802191026.57640.IvDoorn@gmail.com> <200802191900.09543.chris2553@googlemail.com> <200802192046.14184.IvDoorn@gmail.com> <1203462247.6397.15.camel@boulder.homenet> <1203523555.693.2.camel@localhost.localdomain> Content-Type: text/plain Date: Wed, 20 Feb 2008 20:27:15 +0000 Message-Id: <1203539235.3189.4.camel@boulder.homenet> Mime-Version: 1.0 X-Mailer: Evolution 2.12.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2966 Lines: 67 On Wed, 2008-02-20 at 11:05 -0500, Dan Williams wrote: > 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. I did that yesterday and it just reported a kernel panic on the terminal with the message: Kernel panic - not syncing: Aiee, killing interrupt handler! There is a complete lock up. Even the two leds don't send a dump in morse code (if that is still a feature of the 2.6 kernels). They just flash together at 1 second intervals. However, I do not have debugging enabled on 2.6.25-rc2 (I was just interested to see how it worked). If it is thought to be useful I can recompile the kernel with debugging enabled, but this should be reproducible by anyone with a rt73 stick. By way of a further data point, I can scan OK using 2.6.25-rc2 and it will report all the available access points in my area. But as soon as association is attempted, it blows up. Chris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/