Hi DTrace folks, I''m wondering what is the correct way to specify a bit-field value in the predicate, as I''m seeing different outputs for the following D commands: Note tcp_detached is a bit-field. This one outputs numerous result: # dtrace -n ''::tcp_accept_finish:entry/((conn_t*)arg0)->conn_proto_priv.cp_tcp->tcp_detached/ {@[stack()]=count()}'' This one outputs nothing: # dtrace -n ''::tcp_accept_finish:entry/((conn_t*)arg0)->conn_proto_priv.cp_tcp->tcp_detached==1/ {@[stack()]=count()}'' Thank you very much! - yxn