Date: Thu, 24 Jan 2008 13:38:39 +0100 From: Pietro Cerutti <gahr@gahr.ch> To: freebsd-hackers@freebsd.org Subject: SMP in machine/params.h Message-ID: <479886CF.7040506@gahr.ch>
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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@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
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