Re: [PATCH 01/11] x86: Modify Kconfig to allow up to 4096 cpus

From: Ingo Molnar
Date: Mon Apr 28 2008 - 09:38:57 EST



* Pavel Machek <pavel@xxxxxx> wrote:

> On Fri 2008-04-25 17:15:49, Mike Travis wrote:
> > * Increase the limit of NR_CPUS to 4096 and introduce a boolean
> > called "MAXSMP" which when set (e.g. "allyesconfig"), will set
> > NR_CPUS = 4096 and NODES_SHIFT = 9 (512).
>
> Why is redundant option 'maxsmp' a good idea?

because this way randconfig can trigger it and can configure all the
otherwise randconfig-invisible [or just plain unlikely] numerics and
options up to their max.

I found 2-3 "large box" bugs via that way already.

Ingo
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