From: kernel-stuff@comcast.net
To: Zwane Mwaikambo <zwane@linuxpower.ca>, Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: X86_64: Many Lost ticks
Date: Thu, 18 Nov 2004 17:02:37 +0000
Message-Id: <111820041702.27846.419CD5AD000313A800006CC6220588448400009A9B9CD3040A029D0A05@comcast.net>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1194
Lines: 25

I tried all the newer kernels including -ac. All have the same problem.

Andi -  On a side note, your change  "NVidia ACPI timer override" present in 2.6.9-ac8 breaks on my laptop - I get some NMI errors ("Do you have a unusual power management setup?") and DMA timeouts - happens regularly.

Parry.


> On Thu, 18 Nov 2004, Andi Kleen wrote:
> 
> > On Thu, Nov 18, 2004 at 04:02:55AM +0000, kernel-stuff@comcast.net wrote:
> > > I have a X86_64 laptop (Compaq Presario R3240) with all BIOS updates in 
> place. I routinely get the "Warning : many lost ticks" message in dmesg. 
> > 
> > Known problem.  ACPI uses a broken way to access the EC register,
> > and VIA chipsets take extremly long for this operation.  This
> > happens regularly to read the system temperature.
> > A fix is currently being discussed. 
> 
> It's an nforce3, do those also have a similar issue? I have similar 
> hardware and rarely see it, could you test a newer kernel?
-
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