Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760887AbYGAVM1 (ORCPT ); Tue, 1 Jul 2008 17:12:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755367AbYGAVMS (ORCPT ); Tue, 1 Jul 2008 17:12:18 -0400 Received: from metis.extern.pengutronix.de ([83.236.181.26]:59632 "EHLO metis.extern.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753960AbYGAVMP (ORCPT ); Tue, 1 Jul 2008 17:12:15 -0400 Date: Tue, 1 Jul 2008 23:11:58 +0200 From: Luotao Fu To: Wolfgang Grandegger Cc: Steven Rostedt , "Paul E. McKenney" , Luotao Fu , LKML , RT , Ingo Molnar , Thomas Gleixner Subject: Re: 2.6.24-rc8-rt1: Strange latencies on mpc5200 powerpc - RCU issue? Message-ID: <20080701211158.GA8928@pengutronix.de> Mail-Followup-To: Wolfgang Grandegger , Steven Rostedt , "Paul E. McKenney" , Luotao Fu , LKML , RT , Ingo Molnar , Thomas Gleixner References: <479F2C3C.1020203@grandegger.com> <20080130010716.GB16069@linux.vnet.ibm.com> <47A032E9.4080105@grandegger.com> <20080130102255.GA24890@linux.vnet.ibm.com> <47A0552D.20605@grandegger.com> <20080130105715.GE24890@linux.vnet.ibm.com> <20080130111559.GC20089@pengutronix.de> <486A3EBB.6030905@grandegger.com> <486A573E.60107@grandegger.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ibTvN161/egqYuK8" Content-Disposition: inline In-Reply-To: <486A573E.60107@grandegger.com> X-PGP-Key-ID: 0xE5325261 X-URL: http://www.pengutronix.de/ X-Sent-From: Pengutronix Entwicklungszentrum Nord - Hildesheim X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Impressum: Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 Inhaber: Dipl.-Ing. Robert Schwebel X-Message-Flag: See Message Headers for Impressum X-Uptime: 23:07:30 up 9:50, 16 users, load average: 0.07, 0.15, 0.08 User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: 10.1.0.65 X-SA-Exim-Mail-From: l.fu@pengutronix.de X-SA-Exim-Scanned: No (on metis.extern.pengutronix.de); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1348 Lines: 47 --ibTvN161/egqYuK8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 wor= st 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 somet= hing useful. ;-) Cheers Luotao Fu --=20 Dipl.-Ing. Luotao Fu | Phone: +49-5121-206917-3 Pengutronix - Linux Solutions for Science and Industry Entwicklungszentrum Nord http://www.pengutronix.de --ibTvN161/egqYuK8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIap2biruQY+UyUmERApIxAJ4gmry6saieIGVb0cfZjCTuY/E8bwCgj7V+ 8KRyCCI/5zFxSMpDF/Iq3AI= =4tfg -----END PGP SIGNATURE----- --ibTvN161/egqYuK8-- -- 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/