LOCK_PROFILING does not work on FreeBSD 8.0-CURRENT

[Wenji Wu]

Here is my procedures:

(1) run "cvsup supfile" to synchronize the latest kernel

(2) edit my kernel configuration file, and add "options 	LOCK_PROFILING" to my kernel configuration file

(3) run "make buildkernel KERNCONF=wenjikernel"

(4) run "make installkernel kernconf=WENJIKERNEL"

(5) run "reboot" to reboot my system.

Here is the system printout after the reboot.

(1) "$ uname -a"
FreeBSD wan-koi.fnal.gov 8.0-CURRENT FreeBSD 8.0-CURRENT #8: Sun Mar 29 20:11:07 UTC 2009     
root at wan-koi.fnal.gov:/usr/obj/usr/src/sys/wenjikernel  amd64

(2) "sysctl -a|grep lock"
$ sysctl -a|grep lock
kern.clockrate: { hz = 1000, tick = 1000, profhz = 2000, stathz = 133 }
vm.pageout_lock_miss: 0
net.inet.tcp.wlock_looped: 0
net.inet.tcp.wlock_relocked: 0
net.inet.tcp.wlock_upgraded: 56
net.inet.tcp.tcp_wlock_atfirst: 97
net.inet.tcp.rlock_atfirst: 757
net.inet.tcp.read_locking: 1
debug.acpi.reset_clock: 1
debug.rwlock.loops: 10000
debug.rwlock.retry: 10
debug.to_avg_lockcalls: 17
hw.clockrate: 2666
machdep.wall_cmos_clock: 0
p1003_1b.memlock: 0
p1003_1b.memlock_range: 0
dev.atrtc.0.%desc: AT realtime clock


What else did I have miss?

thanks 

wenji