From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754762Ab0IMIrL (ORCPT ); Mon, 13 Sep 2010 04:47:11 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:58900 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754324Ab0IMIrJ (ORCPT ); Mon, 13 Sep 2010 04:47:09 -0400 Date: Mon, 13 Sep 2010 10:46:19 +0200 From: Ingo Molnar To: Nico Schottelius , mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, torvalds@linux-foundation.org, peterz@infradead.org, flo@xssn.at, lenb@kernel.org, jbarnes@virtuousgeek.org, suresh.b.siddha@intel.com, tglx@linutronix.de, rjw@sisk.pl, linux-tip-commits@vger.kernel.org Subject: Re: [tip:sched/urgent] x86, tsc: Fix a preemption leak in restore_sched_clock_state() Message-ID: <20100913084619.GC23741@elte.hu> References: <1284150773.402.122.camel@laptop> <20100913074233.GA2674@schottelius.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100913074233.GA2674@schottelius.org> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Nico Schottelius wrote: > Good morning, > > tip-bot for Peter Zijlstra [Sat, Sep 11, 2010 at 07:49:07AM +0000]: > > Commit-ID: 55496c896b8a695140045099d4e0175cf09d4eae > > Gitweb: http://git.kernel.org/tip/55496c896b8a695140045099d4e0175cf09d4eae > > Author: Peter Zijlstra > > AuthorDate: Fri, 10 Sep 2010 22:32:53 +0200 > > Committer: Ingo Molnar > > CommitDate: Sat, 11 Sep 2010 09:47:07 +0200 > > > > x86, tsc: Fix a preemption leak in restore_sched_clock_state() > > running 2.6.36-rc3-00464-g84e1d83 now, which includes that fix. > > So far no resume issues, but the backlight does not power on again, > if the lid is opened. That's probably unrelated. > Manually triggering display backlight increase (via fn-home) changes > it to 100% though. > > I've not seen that behaviour for a very long time and never on the > X201. It has been an issue on the X200, which means probably around > 2.6.30. Might make sense to bisect it ... as long as you remember to do this at every bisection step that has the hung-suspend bug: git cherry-pick 55496c896b8a695140045099d4e0175cf09d4eae Thanks, Ingo