linux-kernel - Re: [PATCH] x86_64: Double the per cpu area size

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Date:	Tue, 8 Aug 2006 14:26:15 -0700
From:	"Keith Mannthey" <kmannth@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Andi Kleen" <ak@...e.de>, "Andrew Morton" <akpm@...l.org>,
	"Protasevich, Natalie" <Natalie.Protasevich@...sys.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64: Double the per cpu area size

On 8/8/06, Eric W. Biederman <ebiederm@...ssion.com> wrote:
> "Keith Mannthey" <kmannth@...il.com> writes:
>
> > On 8/7/06, Eric W. Biederman <ebiederm@...ssion.com> wrote:
> >> Andi Kleen <ak@...e.de> writes:
> >>
> >> >>
> >> >>  #include <asm/pda.h>
> >> >>
> >> >> +#define PERCPU_ENOUGH_ROOM 65536
> >
> > Is it possible to put this into -mm untill things are sorted?
> > 2.6.18-rc3-mm2 x86_64 is still without any per-cpu space for modules.
>
> I think we are sorted (see the later patch to auto size the per cpu
> area).  But you should be ok with current -mm if you compile for 64 or
> fewer cpus.

Yep it looks like the config file I tote around on this box has
CONFIG_NR_CPUS=128. I thought this this was the default NR_CPUS but it
is not.

Thanks,
  Keith
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