From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750901AbWBLUPO (ORCPT ); Sun, 12 Feb 2006 15:15:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750913AbWBLUPO (ORCPT ); Sun, 12 Feb 2006 15:15:14 -0500 Received: from nproxy.gmail.com ([64.233.182.206]:41535 "EHLO nproxy.gmail.com") by vger.kernel.org with ESMTP id S1750901AbWBLUPM convert rfc822-to-8bit (ORCPT ); Sun, 12 Feb 2006 15:15:12 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=OjbEK6jXZ0rWUtZdxRuHbT9VlZWOR7r+HG2XjdzuL/ySbsNyJqPKNY5nGh2D6aCUC0SphdjxpoomUIwPJH+HyYULhehUOEZrYJqihSpqpSvWILKEJxCFyubmK4gcoBsMHHDk/9xXuhLBpVIiNn5tqnYTyNiDiq4ax8jYvGUlj+k= Message-ID: <51ad2e0d0602121215w1f637cecwd8a4704c4a918994@mail.gmail.com> Date: Sun, 12 Feb 2006 21:15:10 +0100 From: Bin Zhang To: Roger Leigh Subject: Re: 2.6.16-rc2 powerpc timestamp skew Cc: Linux Kernel ML , Benjamin Herrenschmidt , debian-powerpc@lists.debian.org In-Reply-To: <87lkwgpiha.fsf@hardknott.home.whinlatter.ukfsn.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <87pslspkj5.fsf@hardknott.home.whinlatter.ukfsn.org> <87lkwgpiha.fsf@hardknott.home.whinlatter.ukfsn.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 2/12/06, Roger Leigh wrote: > Roger Leigh writes: > > > When running a 2.6.16-rc2 kernel on a powerpc system (Mac Mini; > > Freescale 7447A): > > > > $ date && touch f && ls -l f && rm -f f && date > > Sun Feb 12 12:20:14 GMT 2006 > > -rw-r--r-- 1 rleigh rleigh 0 2006-02-12 12:23 > > Sun Feb 12 12:20:14 GMT 2006 > > > > Notice the timestamp is 3 minutes in the future compared with the > > system time. "make" is not a very happy bunny running on this kernel > > due to every touched file being 3 minutes in the future. > > > In both these cases, the chrony NTP daemon is running, if that might > > be a problem. > > Some further information: > - this does not appear to affect i386 kernels > - I have > CONFIG_HZ_250=y > CONFIG_HZ=250 > in my .config; the full config is at > http://people.debian.org/~rleigh/config-2.6.16-rc2 > I have in my config-2.6.16-rc2 (G4 1.2Ghz, 7447A) CONFIG_HZ_1000=y CONFIG_HZ=1000 and have $ date && touch f && ls -l f && rm -f f && date Sun Feb 12 21:08:43 CET 2006 -rw-r--r-- 1 zhang zhang 0 2006-02-12 21:08 f Sun Feb 12 21:08:43 CET 2006 I don't have ntp daemon running (ntpdate at boot). Regards, Bin > > Regards, > Roger > > -- > Roger Leigh > Printing on GNU/Linux? http://gutenprint.sourceforge.net/ > Debian GNU/Linux http://www.debian.org/ > GPG Public Key: 0x25BFB848. Please sign and encrypt your mail. > > >