> It's safe for most machines, though every now and then an SMP kernel breaks
> on UP. Supposedly there's a performance penalty, though.
>
> A few systems/motherboards won't work with an SMP kernel.
How about replacing things like
#ifdef __SMP__
with
if (__SMP__) {
I.e., use a run-time check instead of a compile-time check. Then
auto-detect an SMP machine at boot, or make it a kernel boot
parameter. I currently have to recompile my RedHat kernel whenever I
upgrade; it would be nice not to have to do that when 2.2 is ready.
Joe Buehler
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