Re: [patch x86/core] x86: allow number of additional hotplug CPUsto be set at compile time

[Chuck Ebbert]

On Thu, 02 Oct 2008 11:12:51 +0200
Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> Chuck Ebbert <cebbert@xxxxxxxxxx> writes:
> 
> > The default number of additional CPU IDs for hotplugging is determined
> > by asking ACPI or mptables how many "disabled" CPUs there are in the
> > system, but many systems get this wrong so that e.g. a uniprocessor
> > machine gets an extra CPU allocated and never switches to single CPU
> > mode.
> 
> You can set this with additional_cpus=... at boot time.
> I don't think each runtime option needs a CONFIG option too.
> 

Well not all of them, but this one is a good candidate.  Either that or
we should just change the default to zero.
--
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/