Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756526AbYBPKJz (ORCPT ); Sat, 16 Feb 2008 05:09:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753046AbYBPKJr (ORCPT ); Sat, 16 Feb 2008 05:09:47 -0500 Received: from fonzie.hosting9000.com ([85.214.50.12]:43006 "EHLO fonzie.hosting9000.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753016AbYBPKJq (ORCPT ); Sat, 16 Feb 2008 05:09:46 -0500 Message-ID: <47B6B666.3080206@frugalware.org> Date: Sat, 16 Feb 2008 11:09:42 +0100 From: Gabriel C User-Agent: Thunderbird 2.0.0.9 (X11/20071204) MIME-Version: 1.0 To: Mike Galbraith CC: Pavel Machek , Frans Pop , linux-kernel@vger.kernel.org, Ingo Molnar , Peter Zijlstra , Srivatsa Vaddagiri Subject: Re: [2.6.25-rc1] jerky mouse cursor and randoooom key repeats References: <200802111623.38478.elendil@planet.nl> <200802130941.47163.elendil@planet.nl> <20080215235842.GA5190@ucw.cz> <47B63B23.2040701@frugalware.org> <1203142796.17270.11.camel@homer.simson.net> In-Reply-To: <1203142796.17270.11.camel@homer.simson.net> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 40 Mike Galbraith wrote: > On Sat, 2008-02-16 at 02:23 +0100, Gabriel C wrote: >> Pavel Machek wrote: >>> Hi! >> Hi , >> >>>> I'd not really done any real workkkk under 2.6.25 yet, but now while running >>>> a kernel compile with -j4 (single processor, dual core Pentium D), I see >>>> this behavior. The mouse cursor moves a bit jerky and I sometimes get key >>>> presses repeated. >>> I see this one, too... x60, too... >>> >> I have that problem on my Dell Precision WorkStation , as soon I stress the box >> a bit keyboard is going mad. > > Sounds like you may have CONFIG_GROUP_SCHED set? Yes it was set to y here. > Bisection fingered > 6b2d7700266b9402e12824e11e0099ae6a4a6a79 as the source here. I can't confirm is that commit because I cannot revert it clean but I can confirm there is something wrong with CONFIG_GROUP_SCHED. ( maybe Peter or Ingo knows =) ) Turning CONFIG_GROUP_SCHED off on this box fixes the mouse and keyboard problems. ( and some other , eg: box doesn't feel 'slow' and 'laggy' anymore ) > > -Mike > Gabriel -- 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/