Hello Peter,

> > BTW, SparcLinux now does SMP on the Sparc20.  3 minutes kernel
> > recompiles on dual CPU Ross HyperSparc 120Mhz chips.  Good job David.
> 
> This sounds good, but is it *real* SMP with data structure level locking
> or AMP like 4.1.2 and above do ? I know too little about the Linux SMP
> architechtures to even guess.

SMP means that any CPU can run kernel code and process interrupts, we
still have a huge lock around the kernel.

Miguel.