From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762120AbYEGPCh (ORCPT ); Wed, 7 May 2008 11:02:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757622AbYEGPC1 (ORCPT ); Wed, 7 May 2008 11:02:27 -0400 Received: from web32606.mail.mud.yahoo.com ([68.142.207.233]:41003 "HELO web32606.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756933AbYEGPCY (ORCPT ); Wed, 7 May 2008 11:02:24 -0400 X-YMail-OSG: J.bUVZwVM1mYaU5bRdzL6YV1ZL9OqL2VMkqE_miq2bEHE7gQJ3eFq1Tjt4LQTQHZCA-- X-Mailer: YahooMailRC/975.23 YahooMailWebService/0.7.185 Date: Wed, 7 May 2008 08:02:23 -0700 (PDT) From: Martin Knoblauch Subject: Re: 2.6.25.2 - Jiffies/Time jumping back and forth (Regereesion from 2.6.24) To: Bart Van Assche Cc: linux-kernel@vger.kernel.org, hmh@hmh.eng.br MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <814762.71071.qm@web32606.mail.mud.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ----- Original Message ---- > From: Bart Van Assche > To: Martin Knoblauch > Cc: linux-kernel@vger.kernel.org; hmh@hmh.eng.br > Sent: Wednesday, May 7, 2008 3:06:02 PM > Subject: Re: 2.6.25.2 - Jiffies/Time jumping back and forth (Regereesion from 2.6.24) > > On Wed, May 7, 2008 at 2:42 PM, Martin Knoblauch wrote: > > > > any news on the one below? I upgraded to 2.6.25.2 and the problem still > persists. Would adding a bugzilla actually help ? :-) > > > > http://www.ussg.iu.edu/hypermail/linux/kernel/0804.2/1144.html > > I noticed a similar issue on 2.6.22 and 2.6.24 kernels: with ACPI > disabled Linux' clock jumps backward and forward early during boot. > See also the kernel messages from the attachment in comment #13 of > http://bugzilla.kernel.org/show_bug.cgi?id=9936. > > Bart, Hi Bart, no this looks different. As soon as the timesource is detected, I see non-zero timestamps in dmesg, but they look smaller and jump in both directions. And I have never seen this before 2.6.25. It actually might be a good idea to get the dmesg output from 2.6.24. Cheers Martin