SMP in machine/params.h

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@xxxxxxxxxxxxxxxxx:/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

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  • Re: SMP in machine/params.h
    ... 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 ... # error SMP not defined ...
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  • [Fwd: SMP in machine/params.h]
    ... I'm running a Core2Duo on CURRENT, SMP kernel, but somehow the macro SMP ... # error SMP not defined ...
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