"msg-it-addr=%p, trace-class-addr=%p, fc-addr=%p",
msg_it, msg_it->meta.tc, packet_header_fc);
status = read_dscope_begin_state(msg_it, packet_header_fc,
"msg-it-addr=%p, trace-class-addr=%p, fc-addr=%p",
msg_it, msg_it->meta.tc, packet_header_fc);
status = read_dscope_begin_state(msg_it, packet_header_fc,