Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754422AbXJaDwy (ORCPT ); Tue, 30 Oct 2007 23:52:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752759AbXJaDwr (ORCPT ); Tue, 30 Oct 2007 23:52:47 -0400 Received: from iucha.net ([209.98.146.184]:58331 "EHLO mail.iucha.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752528AbXJaDwq (ORCPT ); Tue, 30 Oct 2007 23:52:46 -0400 Date: Tue, 30 Oct 2007 22:52:45 -0500 From: Florin Iucha To: Fengguang Wu Cc: Linux Kernel Mailing List , Trond Myklebust , Peter Zijlstra Subject: Re: pdflush stuck in D state with v2.6.24-rc1-192-gef49c32 Message-ID: <20071031035245.GQ25561@iucha.net> References: <20071028152428.GJ7918@iucha.net> <20071030114250.GL25561@iucha.net> <20071031000242.GP25561@iucha.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="fu8LepSeDvpxVgv6" Content-Disposition: inline In-Reply-To: <20071031000242.GP25561@iucha.net> X-GPG-Key: http://iucha.net/florin_iucha.gpg X-GPG-Fingerprint: 5E59 C2E7 941E B592 3BA4 7DCF 343D 2B14 2376 6F5B User-Agent: Mutt/1.5.16 (2007-06-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1769 Lines: 50 --fu8LepSeDvpxVgv6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 30, 2007 at 07:02:42PM -0500, Florin Iucha wrote: > I have added the patches and started a linux kernel compilation, and > something really interesting happens. I run the build with the > equivalent of "make -j3" and in a separate console I am watching the > build with 'top'. The build consumes 98% of both CPUs. If I stop the > output in the build console with "Ctrl-S", one core goes to idle, > while the other is in 50% waiting, then goes to 75% waiting. When I > resume the build with "Ctrl-Q", the build starts to use both CPUs at > 98-99%. The NFS4 use was minimal, as I did not login with Gnome, but > just logged on the console. Also, the CPU that is in 75% waiting > state changes occasionally. 'Top' shows pdflush in D state, using > 5-6% of CPU. I forgot the traces: http://iucha.net/2.6.24-rc1/fw.1.gz http://iucha.net/2.6.24-rc1/fw.2.gz http://iucha.net/2.6.24-rc1/fw.3.gz florin --=20 Bruce Schneier expects the Spanish Inquisition. http://geekz.co.uk/schneierfacts/fact/163 --fu8LepSeDvpxVgv6 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) iD8DBQFHJ/wNND0rFCN2b1sRAi8dAKCiYhCrKHe/PdSK0YOh6o3zvkcl+ACgieUk WsgK1UxJAzAax0FfCj11MBQ= =Ef9Y -----END PGP SIGNATURE----- --fu8LepSeDvpxVgv6-- - 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/