From: "J.A. Magallon" <jamagallon@able.es>
To: Frank Cusack <fcusack@fcusack.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: 2nd proc not seen
Date: Mon, 29 Sep 2003 10:58:07 +0200 [thread overview]
Message-ID: <20030929085807.GA22884@werewolf.able.es> (raw)
In-Reply-To: <20030928205045.B21288@google.com> (from fcusack@fcusack.com on Mon, Sep 29, 2003 at 05:50:46 +0200)
On 09.29, Frank Cusack wrote:
> On Thu, Sep 04, 2003 at 09:14:37AM -0700, Frank Cusack wrote:
> > On Thu, Sep 04, 2003 at 02:11:13AM -0700, Frank Cusack wrote:
> > > I think I've seen some recent talk about this problem. I have an HPAQ
> > > xw6000 w/ 2xP4 CPUs. A RH kernel finds both CPUs (4 if I enable HT). A
> > > kernel.org kernel only finds 1 (2 if I enable HT).
>
> This turned out to be a CPU numbering issue. The HPAQ machine numbers
> the cpus #0 and #6. I had NR_CPUS set to 2. That only works if the CPUs
> are physically numbered 0 and 1.
>
> So NR_CPUS is a little misleading. I could suggest a Config.help change
> if you like.
>
This is a little weird. This forces you to have all the SMP structures sized
8 just to use 2 members.
Was not there a physical-logical map ? Or that was in -aa kernel and 2.6 ?
--
J.A. Magallon <jamagallon()able!es> \ Software is like sex:
werewolf!able!es \ It's better when it's free
Mandrake Linux release 9.2 (Cooker) for i586
Linux 2.4.23-pre5-jam1 (gcc 3.3.1 (Mandrake Linux 9.2 3.3.1-2mdk))
next prev parent reply other threads:[~2003-09-29 8:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-04 9:11 2nd proc not seen Frank Cusack
2003-09-04 16:14 ` Frank Cusack
2003-09-29 3:50 ` Frank Cusack
2003-09-29 8:58 ` J.A. Magallon [this message]
2003-09-29 9:13 ` Mikael Pettersson
2003-09-29 20:51 ` William Lee Irwin III
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