From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: ACPI-related bug caused poor responsitivity (2.6.26.x line) Date: Fri, 15 Aug 2008 04:20:11 +0200 Message-ID: <8763q3yq78.fsf@basil.nowhere.org> References: <20080814211348.GA6268@sarge.my.own.domain.no-net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from one.firstfloor.org ([213.235.205.2]:32881 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752166AbYHOCUO (ORCPT ); Thu, 14 Aug 2008 22:20:14 -0400 In-Reply-To: <20080814211348.GA6268@sarge.my.own.domain.no-net> (Zbigniew Baniewski's message of "Thu, 14 Aug 2008 23:13:49 +0200") Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zbigniew Baniewski Cc: linux-acpi@vger.kernel.org Zbigniew Baniewski writes: > There are so many issues reported during last 3 months, that I'm not sure, > whether (or not) someone wrote about the problem. But few words anyway: > > I noticed, that using new kernels (tested 2.6.26 and 2.6.26.2), there are > typical for ACPI-related problems troubles with responsitivity. For example: > if I'm opening "bloated" web page using Opera, one can't move the mouse > cursor smoothly around the screen; there is a "jitter" during the movement, > and any output (like GKrellm's diagrams created in real time) for that 2-3 > seconds is "frozen". As I've found googling around, these are rather typical > ACPI-related problems, and indeed: forcing "acpi=off" was the cure. I assume you double checked that? As in you removed the option again and the problem reappeared? And you add it again and it disappeared again? If not do so please. If it's checked please put a full report into http://bugzilla.kernel.org Might be some kind of power saving issue. Does it happen when you boot with processor.max_cstate=1? (without acpi=off) Does it happen when you disable CPUIDLE in the config? Thanks -Andi