Only one cpu allowed with 12.0-RC3 r341271

[Dennis Clarke]

This odd situation continues with RC3 :

$
$ uname -aU
FreeBSD eris 12.0-RC3 FreeBSD 12.0-RC3 r341271 GENERIC  powerpc 1200086
$
$ getconf -a | grep "NPROC"
getconf: sysconf: _POSIX_FILE_LOCKING: Invalid argument
getconf: sysconf: _POSIX_THREAD_SPORADIC_SERVER: Invalid argument
getconf: sysconf: _POSIX_TRACE_EVENT_FILTER: Invalid argument
getconf: sysconf: _POSIX_TRACE_INHERIT: Invalid argument
getconf: sysconf: _POSIX_TRACE_LOG: Invalid argument
getconf: sysconf: _XOPEN_VERSION: Invalid argument
NPROCESSORS_CONF: 1
NPROCESSORS_ONLN: 1
$

If I don't have kern.smp.disabled=1 then the system locks up at boot and
the fans roar and it is a warm brick. I really am not sure how to begin
to debug this.  Even the bootable install dvd acts the same way.

Dennis