Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261701AbUKXDEF (ORCPT ); Tue, 23 Nov 2004 22:04:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261700AbUKXDEF (ORCPT ); Tue, 23 Nov 2004 22:04:05 -0500 Received: from mx1.elte.hu ([157.181.1.137]:20650 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S261701AbUKXDDf (ORCPT ); Tue, 23 Nov 2004 22:03:35 -0500 Date: Wed, 24 Nov 2004 05:06:04 +0100 From: Ingo Molnar To: Adam Heath Cc: linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2 Message-ID: <20041124040604.GA13340@elte.hu> References: <20041123115201.GA26714@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1641 Lines: 40 * Adam Heath wrote: > > > I'm seeing something very odd. It's against 29-0. I also seem to > > > recall seeing something similiar reported earlier. > > > > > > I'm seeing pauses on my system. Not certain what is causing it. > > > Hitting a key on the keyboard unsticks it. > > > > at first sight this looks like a scheduling/wakeup anomaly. Please > > re-report this if it happens with the current (30-4) kernel too. Also, > > could you test the vanilla -mm tree, it has a few scheduler updates too. > > 2.6.10-rc1-mm3 doesn't have the same problem. Didn't have a more > recent mm kernel available last night. Will compile one, and always > keep it available. -rc2-mm2 would be nice to test - there are a number of new interactivity fixes from Con being test-driven in -mm right now. In particular, these patches were added in -rc1-mm4. These are the patches in question: sched-adjust_timeslice_granularity.patch requeue_granularity.patch sched-remove_interactive_credit.patch you can download them individually from: http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc2/2.6.10-rc2-mm2/broken-out/ so if these symptoms still occur with vanilla -rc2-mm2, could you try to unapply them, in reverse order? (there might be rejects when you try that, due to patch dependencies - let me know if it doesnt work out and i'll do an undo patch.) Ingo - 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/