Messages in this thread | | | Subject | Re: [patch x86/core] x86: allow number of additional hotplug CPUs to be set at compile time | From | Andi Kleen <> | Date | Thu, 02 Oct 2008 11:12:51 +0200 |
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Chuck Ebbert <cebbert@redhat.com> 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.
-Andi
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