Re: smp_processor_id()?

Brian Ristuccia (brianr@osiris.ml.org)
Sun, 6 Dec 1998 03:32:30 -0500

On Sat, Dec 05, 1998 at 04:28:10PM +1130, Paul Rusty Russell wrote:
> In message <19981203114846.L435@osiris.ml.org> you write:
> > > If this prints 1, that's the problem.
> >
> > It's very possible that this routine is getting wrong information. My linux
> > box has two CPU's, but they're numbered 0 and 4 for some reason. I will
> > apply the patch this afternoon and try again.
>
> You mean that smp_processor_id() returns 0 and 4?
>

Not exactly sure. Here's what /proc/cpuinfo has to say:

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 1
model name : Pentium Pro
stepping : 9
cpu MHz : 198.667014
cache size : 256 KB
...

processor : 4
vendor_id : GenuineIntel
cpu family : 6
model : 1
model name : Pentium Pro
stepping : 9
cpu MHz : 198.667014
cache size : 256 KB
...

> I assumed smp_processor_id() < smp_num_cpus: SMP hackers, is this
> false?
>
> If so, I have to find a new upper bound for smp_processor_id() for
> SMP, or rewrite much of ip_fw.c...
> 

-- 
Brian Ristuccia
brianr@osiris.ml.org
bristucc@baynetworks.com
bristucc@cs.uml.edu


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