[Fwd: SMP in machine/params.h]

-------- Original Message --------
Subject: SMP in machine/params.h
Date: Thu, 24 Jan 2008 13:38:39 +0100
From: Pietro Cerutti <gahr_at_gahr.ch>
To: freebsd-hackers_at_freebsd.org

Hello,

I'm running a Core2Duo on CURRENT, SMP kernel, but somehow the macro SMP
in machine/param.h 1.81 2006/01/09 line 68 is not defined, thus MAXCPU
is defined to 1. Any idea why?

> uname -a
FreeBSD gahrtop.localhost 8.0-CURRENT FreeBSD 8.0-CURRENT #23: Tue Jan
22 00:15:05 CET 2008
root_at_gahrtop.localhost:/usr/obj/usr/src/sys/MSI1034  i386

> sysctl kern.smp.active kern.smp.maxcpus
kern.smp.active: 1
kern.smp.maxcpus: 16

> cat smp.c

#include <sys/param.h>

#ifndef SMP
# error SMP not defined
#endif


> make smp
cc -O2 -pipe -march=pentiumpro  smp.c  -o smp
smp.c:5:3: error: #error SMP not defined
*** Error code 1

> cat maxcpu.c
#include <sys/param.h>
#include <stdio.h>

int main(void)
{
   return (MAXCPU);
}

> ./maxcpu; echo $?
1

Any idea?

-- 
Pietro Cerutti

PGP Public Key:
http://gahr.ch/pgp



-- 
Pietro Cerutti

PGP Public Key:
http://gahr.ch/pgp