Return-path: Received: from mail-fx0-f218.google.com ([209.85.220.218]:48514 "EHLO mail-fx0-f218.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753975AbZGZVdK convert rfc822-to-8bit (ORCPT ); Sun, 26 Jul 2009 17:33:10 -0400 MIME-Version: 1.0 In-Reply-To: <1248639013.32168.15.camel@mj> References: <1248639013.32168.15.camel@mj> Date: Sun, 26 Jul 2009 22:33:08 +0100 Message-ID: Subject: Re: 2.6.31-rc2: Possible regression in rt61pci driver From: Chris Clayton To: Pavel Roskin Cc: linux-wireless@vger.kernel.org, LKML , linville@tuxdriver.com Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Thanks for the reply, Pavel. 2009/7/26 Pavel Roskin : > On Sun, 2009-07-26 at 20:15 +0100, Chris Clayton wrote: > >> One more data point. I wondered whether the freeze would "time out" if >> I just left the laptop frozen, but my testing shows that it probably >> does not (or if it does it takes more than 27 minutes to do so. > > I suggest that you run it on the text console after "dmesg -n 8", so > that all kernel messages are seen. > > I'm using rt61pci with wireless-testing, and I don't see any freezes. Do you have CONFIG_MAC80211_DEFAULT_PS enabled? I have just built and installed -rc4 with this option disabled and it has survived almost 20 minutes so far without a freeze. No previous kernel in the 2.6.31 series has survived more than 5 minutes without freezing, so this looks promising. > >> I've also tried to bisect again, but, as last time, once I got to the >> batch of network-related changes that went into -rc1, I get a series >> of kernels that build but either won't boot or have inoperable >> wireless networking. > > You can use "git bisect skip" to skip those revisions. > > You can specify the paths in "git bisect start" so that only changes to > the interesting places (like drivers/net wireless, net/mac80211 and > net/wireless) are considered when calculating the next commit. ?This > will probably help you avoid the bad place. > Thanks for those tips. I'll note them in my "useful stuff I might forget" notebook and then try to find time over the next few weeks to get to grips with the power of git. Chris -- No, Sir; there is nothing which has yet been contrived by man, by which so much happiness is produced as by a good tavern or inn - Doctor Samuel Johnson