Re: Bogus "APIC: NR_CPUS/possible_cpus limit of 4 reached" messages

From: Markus Trippelsdorf
Date: Thu Oct 06 2016 - 07:52:48 EST


On 2016.10.06 at 12:48 +0100, One Thousand Gnomes wrote:
> On Thu, 6 Oct 2016 13:27:37 +0200
> Markus Trippelsdorf <markus@xxxxxxxxxxxxxxx> wrote:
>
> > On current trunk I get during boot:
> >
> > [ 0.000000] APIC: NR_CPUS/possible_cpus limit of 4 reached. Processor 4/0x84 ignored.
> > [ 0.000000] APIC: NR_CPUS/possible_cpus limit of 4 reached. Processor 5/0x85 ignored.
> >
> > I don't think these messages make much sense on a 4-core machine.
> >
>
> Four cores with or without hyperthreading ?

Without. This is a rather old AMD machine (AMD Phenom II X4 955).

--
Markus