From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751179AbWGDV30 (ORCPT ); Tue, 4 Jul 2006 17:29:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751139AbWGDV30 (ORCPT ); Tue, 4 Jul 2006 17:29:26 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:59101 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751179AbWGDV30 (ORCPT ); Tue, 4 Jul 2006 17:29:26 -0400 Date: Tue, 4 Jul 2006 23:29:10 +0200 From: Pavel Machek To: Ingo Molnar Cc: Fabio Comolli , kernel list , Andrew Morton , mingo@redhat.com, "Rafael J. Wysocki" , Thomas Gleixner Subject: Re: 2.6.17-mm5: lockdep prevents suspend to disk Message-ID: <20060704212910.GA11872@elf.ucw.cz> References: <20060704183244.GB4420@ucw.cz> <20060704210833.GA17961@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060704210833.GA17961@elte.hu> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > > Jul 4 21:48:08 tycho kernel: rt-test-4 > > > Jul 4 21:48:08 tycho kernel: rt-test-5 > > > Jul 4 21:48:08 tycho kernel: rt-test-6 > > > Jul 4 21:48:08 tycho kernel: rt-test-7 > > > > Are rt-test-X tasks kernel threads or userspace programs? (Kernel > > threads need explicit try_to_freeze in them to allow suspend). > > > > Are they normally killable? > > hm, that's not lockdep but due to CONFIG_RT_MUTEX_TESTER. I'm pretty sure RT_MUTEX_TESTER is the problem, then. It should either end its threads when testing is no longer needed, or maybe add try_to_freeze() somewhere inside so that those threads can be frozen. (BTW.. some mail from me to you may be severely delayed because of graylist. I send some mail from zaurus over bt over gprs, and 300second is quite a long time for that...) Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html