MUTEX_DEBUG_P
LOCKDEBUG_FREE(MUTEX_DEBUG_P(mtx), mtx);
LOCKDEBUG_WANTLOCK(MUTEX_DEBUG_P(mtx), (mtx), \
LOCKDEBUG_WANTLOCK(MUTEX_DEBUG_P(mtx), (mtx), \
LOCKDEBUG_LOCKED(MUTEX_DEBUG_P(mtx), (mtx), NULL, \
LOCKDEBUG_UNLOCKED(MUTEX_DEBUG_P(mtx), (mtx), \