FreeBSD on dual core Opterons - stupid buildworld test

Scott Long scottl at
Fri May 20 10:10:08 PDT 2005

David O'Brien wrote:

> On Thu, May 19, 2005 at 06:47:05PM +0200, Attila Nagy wrote:
>>David O'Brien wrote:
>>>I'm taking care of this.  Please no one commit any AMD Dual-core related
>>>patches (especially WRT HTT) with out passing them by me.
>>Do you have any preliminary patches? Access to hardware?
> Yes I have hardware - since March.
> Everyone should note that difference of dual-core vs. single core doesn't
> matter one bit for FreeBSD.  We don't have NUMA support, which is what is
> required to care about the difference between 1x dual-core & 2x
> single-core (or 2x dual-core & 4x single-core) Opteron.
> For 6.0-RELEASE (which branches June 1, 2005), I'm going to just have the
> kernel ignore that dual-core Opteron sets the HTT feature flag.

Note, 6.0-RELEASE does not happen on June 1.  That is the date where we 
shift out of crazy development mode and into polishing mode.  Polishing 
would include making a CPU feature work correctly.


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