Re: 2nd proc not seen

J.A. Magallon
2003-09-29T08:58:25Z

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))