From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758382Ab0EVUyS (ORCPT ); Sat, 22 May 2010 16:54:18 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:58943 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755473Ab0EVUyR (ORCPT ); Sat, 22 May 2010 16:54:17 -0400 From: "Rafael J. Wysocki" To: Thomas Gleixner Subject: Re: [Regression] Negative time on Acer Ferrari One with current -git Date: Sat, 22 May 2010 22:55:27 +0200 User-Agent: KMail/1.12.4 (Linux/2.6.34-rjw; KDE/4.3.5; x86_64; ; ) Cc: Linus Torvalds , John Stultz , LKML , Andrew Morton References: <201005212343.25184.rjw@sisk.pl> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201005222255.27301.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Saturday 22 May 2010, Thomas Gleixner wrote: > On Sat, 22 May 2010, Thomas Gleixner wrote: > > > On Sat, 22 May 2010, Rafael J. Wysocki wrote: > > > On Saturday 22 May 2010, Thomas Gleixner wrote: > > > > > > > Also which clocksource is used ? > > > > > > hpet > > > > Hmm, there is only one hpet related commit sin .34: 30a564be9d > > and I can hardly see how this should be related. > > Does the problem persist if you disable HPET on the kernel command line ? I didn't try that, but I bisected it in the meantime which lead to: commit 64ce4c2f5252f25798117fa80a027993163d6d84 Author: John Stultz Date: Thu Mar 11 14:04:47 2010 -0800 time: Clean up warp_clock() warp_clock() currently accesses timekeeping internal state directly, which is unnecessary. Convert it to use the proper timekeeping interfaces. Signed-off-by: John Stultz Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner So I don't think it's an hpet issue. :-) I'm now going to revert that commit and see what happens. Thanks, Rafael