Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757070AbYGGS1O (ORCPT ); Mon, 7 Jul 2008 14:27:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755078AbYGGS05 (ORCPT ); Mon, 7 Jul 2008 14:26:57 -0400 Received: from daemonizer.de ([87.230.16.230]:39516 "EHLO daemonizer.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754306AbYGGS05 (ORCPT ); Mon, 7 Jul 2008 14:26:57 -0400 From: Maximilian Engelhardt To: Pavel Machek Subject: Re: 2.6.26-rc9: Reported regressions from 2.6.25 Date: Mon, 7 Jul 2008 20:26:20 +0200 User-Agent: KMail/1.9.9 Cc: Linus Torvalds , "Rafael J. Wysocki" , Linux Kernel Mailing List , Adrian Bunk , Andrew Morton , Natalie Protasevich , Kernel Testers List , Randy Dunlap , "Paul E. McKenney" , James Bottomley References: <20080707173708.GA3000@elf.ucw.cz> In-Reply-To: <20080707173708.GA3000@elf.ucw.cz> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2186059.qrZCnum4Zm"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200807072026.24727.maxi@daemonizer.de> X-Spam-Score: -4.1 (----) X-Spam-Report: No, hits=-4.1 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.3 * -1.8 ALL_TRUSTED Passed through trusted hosts only via SMTP * -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] * 0.3 AWL AWL: From: address is in the auto white-list Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1970 Lines: 55 --nextPart2186059.qrZCnum4Zm Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Monday 07 July 2008, Pavel Machek wrote: > Hi! > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=3D10919 > > > Subject : [regression] display dimming is slow and laggy - Acer > > > Travelmate 661lci Submitter : Maximilian Engelhardt > > > > > > Date : 2008-06-14 22:31 (23 days old) > > > References : http://marc.info/?l=3Dlinux-kernel&m=3D121348428828320&w= =3D4 > > > > I wonder if this one could be related. The 'nr_zones' overwriting bug > > would result in kswapd not reclaiming any memory asynchronously, so the > > kernel would basically be constantly under a low-memory situation, and > > processes would be forced to do synchronous reclaim. > > > > That, in turn, could easily explain laggy operation, especially if it is > > something bigger that needs to allocate new memory (not that I know if X > > dimming needs to, but I could imagine that it does some double buffering > > or whatever). > > Hmm, but that would mean whole system is slow, right? > > I'd bet this is ACPI EC problem... I didn't notice anything that my system is slow. Also I think this patch go= t=20 included in 2.6.26-rc9 but I still have this problem with it. Maxi --nextPart2186059.qrZCnum4Zm Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkhyX80ACgkQOimwv528XGE/AQCg4PFguyy6ZGbfL/kOvJLbCGHb gJAAoNaDbrrmbbRVrocOY1HCXIasetwf =Ezmi -----END PGP SIGNATURE----- --nextPart2186059.qrZCnum4Zm-- -- 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/