Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752944AbZIGK2p (ORCPT ); Mon, 7 Sep 2009 06:28:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752857AbZIGK2o (ORCPT ); Mon, 7 Sep 2009 06:28:44 -0400 Received: from mail-ew0-f206.google.com ([209.85.219.206]:34493 "EHLO mail-ew0-f206.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752848AbZIGK2n (ORCPT ); Mon, 7 Sep 2009 06:28:43 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=eM9XHE+Su0I55r10kR2QoNSucBJxVQgE4oAz0HMWqRGfMZ7idjt0+dfFry213med8n ZpU4ZYlFaYwU9OP2oz5rUQQJwn/1FLMJLaXcm+hXJsaLeI3K5PgmOuoO4HLXJeIsE2VA 3j0hBkXoNXdU9bzCZCpUdhFdtEihQ+2ceZIqM= Date: Mon, 7 Sep 2009 12:28:40 +0200 From: Frederic Weisbecker To: Jan Blunck , Ulrich Lukas Cc: Arnaldo Carvalho de Melo , Steven Rostedt , linux-kernel@vger.kernel.org, Ingo Molnar , Clark Williams , linux-rt-users@vger.kernel.org, Andrew Morton , Thomas Gleixner , Peter Zijlstra Subject: Re: [PATCH 00/18] tracing/ring-buffer: fixes for latency tracer [2.6.32] Message-ID: <20090907102838.GA6393@nowhere> References: <20090904235527.520961911@goodmis.org> <20090905150658.GA13387@ghostprotocols.net> <4de7f8a60909070320j692d746drb06bd635ca7f7c55@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4de7f8a60909070320j692d746drb06bd635ca7f7c55@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1421 Lines: 40 On Mon, Sep 07, 2009 at 12:20:50PM +0200, Jan Blunck wrote: > On Sat, Sep 5, 2009 at 5:06 PM, Arnaldo Carvalho de Melo wrote: > > > > I did a quick port to tip/rt/head and couldn't reproduce the problems I > > was experiencing, thanks! > > > > I've put the ported patch series at: > > > > http://userweb.kernel.org/~acme/rostedt-rb-rt > > > > Nice, this also seems to fix my problem with the hanging wakup > selftest. At least the system continues to boot. However, I still get > this: > > [ 13.739115] Testing tracer sched_switch: PASSED > [ 14.002071] Testing tracer function: PASSED > [ 14.158816] Testing dynamic ftrace: PASSED > [ 14.512524] Testing tracer irqsoff: PASSED > [ 14.693519] Testing tracer preemptoff: PASSED > [ 14.853519] Testing tracer preemptirqsoff: PASSED > [ 15.013506] Testing tracer wakeup: > [ 15.134004] hrtimer: interrupt too slow, forcing clock min delta to > 27508383 ns Ah, Ulrich Lukas also reported me such warnings. I would like to track the reason of these messages (the hrtimer hanging detection seems to warn too early). Could you please send me your config, I hope I could reproduce it. Thanks! -- 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/