MUTEX_BIT_NODEBUG
(mtx)->mtx_owner |= MUTEX_BIT_NODEBUG; \
(mtx)->mtx_owner |= MUTEX_BIT_NODEBUG; \
#define MUTEX_DEBUG_P(mtx) (((mtx)->mtx_owner & MUTEX_BIT_NODEBUG) == 0)
#define MUTEX_OWNED(owner) (((owner) & ~MUTEX_BIT_NODEBUG) != 0)
#define MUTEX_INHERITDEBUG(n, o) (n) |= (o) & MUTEX_BIT_NODEBUG