Re: LOCK_PROFILING does not work on FreeBSD 8.0-CURRENT

Hi, Kris,

I beleive something is wrong with FreeBSD 8.0's configuration or compiling. 

I just made "LOCK_PROFILING" work in my system. Here is my procedures,

(1)
$ uname -a
FreeBSD wan-koi.fnal.gov 8.0-CURRENT FreeBSD 8.0-CURRENT #11: Mon Mar 30 14:17:49 UTC 2009     
root_at_wan-koi.fnal.gov:/usr/obj/usr/src/sys/wenjikernel  amd64

(2) 
go to "/usr/obj/usr/src/sys/wenjikernel", then run "vi config.c", and check "OPTIONS LOCK_PROFILING" is included.

(3)
go to "/usr/src", run "make buildkernel KERNCONF=wenjikernel", "make installkernel KERNCONF=wenjikernel", "reboot"

(4) run "sysctl -a|grep lock", NO "LOCK_PROFILING" capability!

(5) go to "/usr/obj/usr/src/sys/wenjikernel", then run "vi config.c", comment out ""#ifdef INCLUDE_CONFIG_FILE"

(6) 
go to "/usr/src", run "make buildkernel KERNCONF=wenjikernel", "make installkernel KERNCONF=wenjikernel", "reboot"

(7) run "sysctl -a|grep lock", NO "LOCK_PROFILING" capability!

(8) 
$ uname -a
FreeBSD wan-koi.fnal.gov 8.0-CURRENT FreeBSD 8.0-CURRENT #11: Mon Mar 30 14:17:49 UTC 2009     
root_at_wan-koi.fnal.gov:/usr/obj/usr/src/sys/GENERIC  amd64

please note here: "GENERIC", I was actually compiling and installing with "wenjikenrel". I do not know why it automatically goes with "GENERIC"

(9) go to "/usr/src/sys/amd64/conf", add "OPTIONS LOCK_PROFILING" to GENERIC

(10) 
go to "/usr/src", run "make buildkernel KERNCONF=wenjikernel", "make installkernel KERNCONF=wenjikernel", "reboot"

(11) "uname -a"
$ uname -a
FreeBSD wan-koi.fnal.gov 8.0-CURRENT FreeBSD 8.0-CURRENT #11: Mon Mar 30 14:17:49 UTC 2009     
root_at_wan-koi.fnal.gov:/usr/obj/usr/src/sys/wenjikernel  amd64

(12) run "sysctl -a|grep lock|grep debug"
$ sysctl -a|grep lock|grep debug
debug.acpi.reset_clock: 1
debug.rwlock.loops: 10000
debug.rwlock.retry: 10
debug.to_avg_lockcalls: 11
debug.lock.prof.enable: 0
debug.lock.prof.reset: 0
debug.lock.prof.stats:
debug.lock.prof.rejected: 0
debug.lock.prof.skipcount: 0
debug.lock.prof.skipspin: 0


Now you see, "LOCK_PROFILING" works now!

I just repeat the procedures, So, something is wrong with the configuration and compling!

wenji