linux-kernel - Re: 2.6.24-rc8-rt1: Strange latencies on mpc5200 powerpc

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Message-ID: <20080701211158.GA8928@pengutronix.de>
Date:	Tue, 1 Jul 2008 23:11:58 +0200
From:	Luotao Fu <l.fu@...gutronix.de>
To:	Wolfgang Grandegger <wg@...ndegger.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Luotao Fu <l.fu@...gutronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: 2.6.24-rc8-rt1: Strange latencies on mpc5200 powerpc - RCU
	issue?

Hi Wolfgang,

On Tue, Jul 01, 2008 at 06:11:42PM +0200, Wolfgang Grandegger wrote:
[...]

I'm out of office till next week. I will try to narrow down the issue you
reported on my board asap. Unfortunately I was not able to produce such worst
case results in my test runs till now. Anyhow I'll also have a look at the code
segment you found and play a little around there. Hopefully I'll find something
useful. ;-)

Cheers
Luotao Fu
-- 
   Dipl.-Ing. Luotao Fu | Phone: +49-5121-206917-3
Pengutronix - Linux Solutions for Science and Industry
Entwicklungszentrum Nord     http://www.pengutronix.de


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