Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263274AbUDFVvI (ORCPT ); Tue, 6 Apr 2004 17:51:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264022AbUDFVvI (ORCPT ); Tue, 6 Apr 2004 17:51:08 -0400 Received: from natsmtp00.rzone.de ([81.169.145.165]:56061 "EHLO natsmtp00.webmailer.de") by vger.kernel.org with ESMTP id S263274AbUDFVvF (ORCPT ); Tue, 6 Apr 2004 17:51:05 -0400 Date: Tue, 6 Apr 2004 23:46:16 +0200 From: Dominik Brodowski To: john stultz Cc: Praedor Atrebates , lkml , Len Brown Subject: Re: System clock speed too high - 2.6.3 kernel Message-ID: <20040406214616.GC11010@dominikbrodowski.de> Mail-Followup-To: Dominik Brodowski , john stultz , Praedor Atrebates , lkml , Len Brown References: <200403261430.18629.praedor@yahoo.com> <1080336165.5408.307.camel@cog.beaverton.ibm.com> <200403261800.32717.praedor@yahoo.com> <1080660339.5408.356.camel@cog.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1080660339.5408.356.camel@cog.beaverton.ibm.com> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1657 Lines: 36 On Tue, Mar 30, 2004 at 07:25:39AM -0800, john stultz wrote: > On Fri, 2004-03-26 at 15:00, Praedor Atrebates wrote: > > On Friday 26 March 2004 04:22 pm, john stultz held forth thus: > > > On Fri, 2004-03-26 at 11:30, Praedor Atrebates wrote: > > > > In doing a web search on system clock speeds being too high, I found > > > > entries describing exactly what I am experiencing in the linux-kernel > > > > list archives, but have not yet found a resolution. > > > > > > > > I have Mandrake 10.0, kernel-2.6.3-7mdk installed, on an IBM Thinkpad > > > > 1412 laptop, celeron 366, 512MB RAM. I am finding that my system clock > > > > is ticking away at a rate of about 3:1 vs reality, ie, I count ~3 seconds > > [...] > > > Could you please send me dmesg output for this system? > > > > > Attached is the output of dmesg. > > You mentioned that your system is an older laptop, and you're setting > "acpi=on" in your boot arguments. What happens when you omit "acpi=on"? > Do you get a message saying something to the effect of your system being > too old for ACPI? Does everything still work as it ought? Hm, could you please verify that ACPI throttling and cpufreq is _disabled_ when you do this check? For throttling, please do echo 1 > /proc/acpi/processor/./throttling echo 0 > /proc/acpi/processor/./throttling [just echo'ing 0 is a noop if ACPI thinks it's at T0... and we want to force T0]. Dominik - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/