From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933239AbXAaNMj (ORCPT ); Wed, 31 Jan 2007 08:12:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933241AbXAaNMj (ORCPT ); Wed, 31 Jan 2007 08:12:39 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:36527 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933239AbXAaNMi (ORCPT ); Wed, 31 Jan 2007 08:12:38 -0500 Date: Wed, 31 Jan 2007 14:10:58 +0100 From: Ingo Molnar To: Thomas Gleixner Cc: Andrew Morton , Karsten Wiese , LKML Subject: Re: [patch-mm] dynticks: Fix one off jiffy update Message-ID: <20070131131058.GA25445@elte.hu> References: <1170113083.29240.74.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1170113083.29240.74.camel@localhost.localdomain> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.8 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.8 required=5.9 tests=ALL_TRUSTED,BAYES_50 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts 0.5 BAYES_50 BODY: Bayesian spam probability is 40 to 60% [score: 0.4603] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Thomas Gleixner wrote: > Sigh. /me wanted to be too clever and needs to order more brown > paperbags now. > > The rework of the jiffy update code introduced a one off error, which > led to a one off accounting error for last_jiffy_update. This made > jiffies lag behind. > > Noticed by Karsten Wiese (cpufreq_ondemand weirdness). Karsten - thanks for tracking this regression down to the jiffies update code! I'm wondering, do you still the suspend slowness problem with this fix applied as well? Ingo