Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270316AbUJTOSb (ORCPT ); Wed, 20 Oct 2004 10:18:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270341AbUJTORi (ORCPT ); Wed, 20 Oct 2004 10:17:38 -0400 Received: from mail.gmx.net ([213.165.64.20]:46539 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S270316AbUJTOJH (ORCPT ); Wed, 20 Oct 2004 10:09:07 -0400 X-Authenticated: #4399952 Date: Wed, 20 Oct 2004 16:24:28 +0200 From: Florian Schmidt To: Florian Schmidt Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Message-ID: <20041020162428.7c4c5f53@mango.fruits.de> In-Reply-To: <20041020152507.3c167ca8@mango.fruits.de> References: <20041014002433.GA19399@elte.hu> <20041014143131.GA20258@elte.hu> <20041014234202.GA26207@elte.hu> <20041015102633.GA20132@elte.hu> <20041016153344.GA16766@elte.hu> <20041018145008.GA25707@elte.hu> <20041019124605.GA28896@elte.hu> <20041019180059.GA23113@elte.hu> <20041020094508.GA29080@elte.hu> <20041020145019.176826cb@mango.fruits.de> <20041020125500.GA8693@elte.hu> <20041020152507.3c167ca8@mango.fruits.de> X-Mailer: Sylpheed-Claws 0.9.12b (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1742 Lines: 41 On Wed, 20 Oct 2004 15:25:07 +0200 Florian Schmidt wrote: > On Wed, 20 Oct 2004 14:55:00 +0200 > Ingo Molnar wrote: > > > i dont think it's caused by trace_enabled - the trace you sent last time > > clearly showed erratic behavior. There's one piece of code i suspect in > > particular - could you try the patch below ontop of -U8? (i have > > compile- and boot- tested it) > > mango:/usr/src/linux-2.6.9-rc4-mm1-U8# patch -p1 patching file kernel/sched.c > Hunk #5 succeeded at 3843 with fuzz 1. > > building anyways, reporting later.. Hi, it seems that the pauses went away with that patch. The system is showing a different weird behaviour now. On last bootup the machine slowly died away (first my email program froze upon checking for mail, then starting top would just hang the respective xterm. ps still ran and procuced output [i didn't capture it though, doh], other stuff would hang, too. upon ctrl-alt-bkspc to kill the x server, it all locked up.. i have no serial console or other machine to test if it was still up in any way. And on this bootup the pauses are still gone, but as soon as i echo'ed 1 into trace_enabled the mouse started to become very skippy (update freq at about 3hz). Keyboard is fine though.. putting trace_enabled back to 0 doesn't fix it. I suppose it's just a matter of time until the next lockup. We'll see though.. Syslog only sees critical section timing reports, no BUG's afaics. flo - 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/