From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751192Ab1IUV0x (ORCPT ); Wed, 21 Sep 2011 17:26:53 -0400 Received: from nef2.ens.fr ([129.199.96.40]:3610 "EHLO nef2.ens.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750777Ab1IUV0w (ORCPT ); Wed, 21 Sep 2011 17:26:52 -0400 X-Greylist: delayed 2223 seconds by postgrey-1.27 at vger.kernel.org; Wed, 21 Sep 2011 17:26:52 EDT Date: Wed, 21 Sep 2011 22:49:46 +0200 From: =?iso-8859-1?Q?=C9ric?= Brunet To: linux-kernel@vger.kernel.org Subject: Re: Regression between 2.6.35 and 2.6.38 (freeze at resume) Message-ID: <20110921204946.GA4304@lps.ens.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.5.21 (2010-09-15) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.1.4 (nef2.ens.fr [129.199.96.32]); Wed, 21 Sep 2011 22:49:48 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In-Reply-To: References: <201109170935.17777.Eric.Brunet@lps.ens.fr> <201109202206.35705.Eric.Brunet@lps.ens.fr> >> I'd like to know what I can do to help nail this annoying bug. I am >> not sure if I can git bisect it; it is hard to tell offhand if a >> kernel is good; it may resume correctly many times before crashing. > > Did you try the recent 3.1-rc? There have been a few commits relevant > with battery module and PM after 3.0, and I guess this will be the fix > for your case, too. I did try 3.0.4 and it crashed the same way. I'll try 3.1-rc as you suggest. The point is that it worked very well in F14 with 2.6.35 kernels. I was trying to find out in which kernel exactly the problems began. I couldn't crash 2.6.36, 2.6.37 and 2.6.38 but, today, 2.6.39-rc1 crashed on me. I suspect (because there is a small change of behaviour) that the problem appears in 2.6.38 even though I haven't crashed it yet. Were there some changes in battery and PM around 2.6.38 ? Anyway, I start now to compile 3.1. Thanks, Éric Brunet