_thr_umtx_wait_uint
_thr_umtx_wait_uint(&once_control->state,
_thr_umtx_wait_uint(&once_control->state, state,
_thr_umtx_wait_uint(&curthread->cycle, cycle, NULL, 0);
_thr_umtx_wait_uint(&thread->cycle, tmp, NULL, 0);
_thr_umtx_wait_uint(&_suspend_all_cycle, old, NULL, 0);
int _thr_umtx_wait_uint(volatile u_int *mtx, u_int exp,