Re: + i386-time-avoid-pit-smp-lockups.patch added to -mm tree

[Andi Kleen]

On Thursday 19 October 2006 16:48, Nick Piggin wrote:
> Andi Kleen wrote:
> >>An SMP kernel can boot on UP hardware, in which case I think
> >>num_possible_cpus() will be 1, won't it?
> > 
> > 
> > 0 was a typo, i meant 1 for UP of course. 0 would be nonsensical.
> 
> Sure, I realised that. For a UP kernel, the test will compile away.
> 
> But Daniel seems to say there is dead code that could be compiled
> out for SMP kernels. I just don't think that is possible because the
> SMP kernel can boot a UP system where num_possible_cpus() is 1.

I thought he meant !CONFIG_SMP kernels.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/