From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754549AbZBRSUV (ORCPT ); Wed, 18 Feb 2009 13:20:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753246AbZBRSUF (ORCPT ); Wed, 18 Feb 2009 13:20:05 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:33675 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751991AbZBRSUE (ORCPT ); Wed, 18 Feb 2009 13:20:04 -0500 Date: Wed, 18 Feb 2009 19:19:26 +0100 From: Ingo Molnar To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, Andrew Morton , Thomas Gleixner , Frederic Weisbecker , Peter Zijlstra , Arnaldo Carvalho de Melo , "Luis Claudio R. Goncalves" Subject: Re: [PATCH 0/6] [git pull] updates for tip/tracing/ftrace Message-ID: <20090218181926.GA26802@elte.hu> References: <20090217182048.233060814@goodmis.org> <20090218000952.GD12714@elte.hu> <20090218084041.GA27540@elte.hu> <20090218085719.GA31049@elte.hu> <20090218093026.GA12152@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 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 * Steven Rostedt wrote: > > [ Note, I upgrade my email server which caused a bit of havoc, I'm > just getting emails back from yesterday ] > > > On Wed, 18 Feb 2009, Ingo Molnar wrote: > > > > > * Ingo Molnar wrote: > > > > > it's one of these recent commits: > > > > > > fa7c7f6: tracing/core: remove unused parameter in tracing_fill_pipe_page() > > > 6eaaa5d: tracing/core: use appropriate waiting on trace_pipe > > > 35ebf1c: ftrace: show unlimited when traceon or traceoff has no counter > > > 73d8b8b: tracing: fix typing mistake in hint message and comments > > > d2ef7c2: tracing: fix the return value of trace selftest > > > af51309: tracing: use the more proper parameter > > > b6887d7: ftrace: rename _hook to _probe > > > 6a24a24: ftrace: clean up coding style > > > > > > Have not bisected it any further, excluded them from > > > tip:master for the time being. > > > > actually - it's one of these: > > > > 37bd824: Merge branches 'tracing/ftrace' and 'tracing/urgent' into tracing/core > > 5b058bc: tracing/function-graph-tracer: trace the idle tasks > > 73d3fd9: ftrace: fix !CONFIG_DYNAMIC_FTRACE ftrace_swapper_pid definition > > 97d0bb8: ftrace: fix !CONFIG_FTRACE [un_]register_ftrace_command() prototypes > > f492d3f8: Merge branch 'tip/tracing/ftrace' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace > > c4e2b43: Merge branches 'tracing/hw-branch-tracing' and 'tracing/power-tracer' into tracing/core > > e110e3d: ftrace: add pretty print function for traceon and traceoff hooks > > 809dcf2: ftrace: add pretty print to selected fuction traces > > 8fc0c70: ftrace: show selected functions in set_ftrace_filter > > 23b4ff3: ftrace: add traceon traceoff commands to enable/disable the buffers > > 988ae9d: ring-buffer: add tracing_is_on to test if ring buffer is enabled > > 59df055: ftrace: trace different functions with a different tracer > > e6ea44e: ftrace: consolidate mutexes > > The above consolidate mutexs would be a prime suspect for a hard lockup. > It may very well be that. When I finally receive your config, I'll give it > a test. I saw you post the config by looking a web archive, but my email > server is still in the processes of retrieving all my email from the last > day or so. here's a clickable link: http://redhat.com/~mingo/misc/config-ftrace-breakage-2009-02-18 ngo