Re: [PATCH] NUMA-Q disable irqbalance

Alan Cox
2002-08-13T16:56:28Z

On Tue, 2002-08-13 at 17:41, Linus Torvalds wrote:
> Finally, exactly since IRQ balancing is practically required on P4-SMP, I
> really don't think a CONFIG option works. It needs to be configured in on
> any kernel that expects to use P4's in an SMP configuration.
>
> In other words, I think this needs to do a dynamic disable (with the
> possible exception of a NUMA-Q machine, since that one is already a static
> config option and won't have P4's in it).

In the 2.4-ac tree it is a dynamic disable keyed off the mp 1.4 tables.
That's how James Cleverdon (I think it was he) implemented the detection
logic and mixed summit/sane-pc kernel build that seems to work well now