What does "uname -a" produce?? is there an smp after the FC%? If not, it's not smpenabled .. maybe your grub/lilo is pointing to the wrong boot image?

Dan. On Mon, 2005-06-27 at 18:16 -0500, John Lange wrote:

I used the exact same .config from 2.6.9 and it does have SMP support including support for hyperthreading.

It may be that last option which is new meaning the kernel now recognizes it as only one CPU?

I've googled but can't find anything meaningful.