Subject: Re: timecounters using broken TSC - PC-engines WRAP time problem
To: None <tech-kern@NetBSD.org>
From: Joerg Sonnenberger <joerg@britannica.bec.de>
List: tech-kern
Date: 11/29/2007 14:37:37
On Thu, Nov 29, 2007 at 02:42:04PM +0100, theo borm wrote:
> Using a kernel with "options    NO_TSC_TIME" does NOT have the effect I 
> thought it would have. IF "options    NO_TSC_TIME" is NOT intended to 
> disable the use of the TSC, then it would be nice to have another kernel 
> compilation option to do so.

The option seems to be a left-over from other things.

> I'm not quite sure if any of this would be considered a bug, but as Soekris 
> (NET4501) users /may/ also be affected, it thought it prudent to drop a 
> note here.

Does your system have an AMD Geode SC1100 or similiar? I found a
discussion for Linux that mentioned that the TSC is broken as it is not
incremented during halt.

Joerg