Symbol: UMTX_OP_CV_SIGNAL
lib/libthr/thread/thr_umtx.c
265
return (_umtx_op_err(cv, UMTX_OP_CV_SIGNAL, 0, NULL, NULL));
sys/kern/kern_umtx.c
4914
[UMTX_OP_CV_SIGNAL] = __umtx_op_cv_signal,