linux-kernel - Re: [PATCH 00/18] tracing/ring-buffer: fixes for latency tracer [2.6.32]

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Message-ID: <20090907112225.GC6393@nowhere>
Date:	Mon, 7 Sep 2009 13:22:26 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Jan Blunck <jblunck@...e.de>
Cc:	Ulrich Lukas <ulrich.lukas@....de>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Clark Williams <williams@...hat.com>,
	linux-rt-users@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH 00/18] tracing/ring-buffer: fixes for latency tracer
	[2.6.32]

On Mon, Sep 07, 2009 at 12:41:55PM +0200, Jan Blunck wrote:
> On Mon, Sep 07, Frederic Weisbecker wrote:
> > 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.
> > 
> 
> I only see that on one of my systems, a 32 core Opteron and not on my 8
> core. So it seems that size does matter ...


Ah then I have few chances to reproduce it with my boxes :-)

I'll try anyway, thanks!

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