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Date: Thu, 22 Mar 2001 17:42:33 -0800
From: Tim Wright <timw@splhi.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Woller, Thomas" <twoller@crystal.cirrus.com>, andrew.grover@intel.com,
        linux-kernel@vger.kernel.org
Subject: Re: Incorrect mdelay() results on Power Managed Machines x86
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In-Reply-To: <E14gEeH-0003Z4-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Thu, Mar 22, 2001 at 11:37:43PM +0000
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If it's a 500MHz Thinkpad, then I'm guessing it's something like a 600X.
That doesn't have Speedstep. The speed changes are done by some circuitry
in the laptop. I can try to find out more if this would help.
The newer machines are using Speedstep.

Tim

On Thu, Mar 22, 2001 at 11:37:43PM +0000, Alan Cox wrote:
> > 	thanks, i just tested the "notsc" option (.config has CONFIG_X86_TSC
> > enabled=y, but CONFIG_M586TSC is not enabled.. if that's ok), but this time
> ...
> > boot and stay on battery power exclusively.  did anyone else expect this
> > behaviour?  
> 
> Errmm no.. 
> 
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-- 
Tim Wright - timw@splhi.com or timw@aracnet.com or twright@us.ibm.com
IBM Linux Technology Center, Beaverton, Oregon
Interested in Linux scalability ? Look at http://lse.sourceforge.net/
"Nobody ever said I was charming, they said "Rimmer, you're a git!"" RD VI
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