diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -3045,6 +3045,43 @@
 	}
 }
 
+static void
+db_print_bblog_state(int state)
+{
+	switch (state) {
+	case TCP_LOG_STATE_RATIO_OFF:
+		db_printf("TCP_LOG_STATE_RATIO_OFF");
+		break;
+	case TCP_LOG_STATE_CLEAR:
+		db_printf("TCP_LOG_STATE_CLEAR");
+		break;
+	case TCP_LOG_STATE_OFF:
+		db_printf("TCP_LOG_STATE_OFF");
+		break;
+	case TCP_LOG_STATE_TAIL:
+		db_printf("TCP_LOG_STATE_TAIL");
+		break;
+	case TCP_LOG_STATE_HEAD:
+		db_printf("TCP_LOG_STATE_HEAD");
+		break;
+	case TCP_LOG_STATE_HEAD_AUTO:
+		db_printf("TCP_LOG_STATE_HEAD_AUTO");
+		break;
+	case TCP_LOG_STATE_CONTINUAL:
+		db_printf("TCP_LOG_STATE_CONTINUAL");
+		break;
+	case TCP_LOG_STATE_TAIL_AUTO:
+		db_printf("TCP_LOG_STATE_TAIL_AUTO");
+		break;
+	case TCP_LOG_VIA_BBPOINTS:
+		db_printf("TCP_LOG_STATE_BBPOINTS");
+		break;
+	default:
+		db_printf("UNKNOWN(%d)", state);
+		break;
+	}
+}
+
 static void
 db_print_tcpcb(struct tcpcb *tp, const char *name, int indent)
 {
@@ -3156,6 +3193,21 @@
 	db_print_indent(indent);
 	db_printf("t_rttlow: %d   rfbuf_ts: %u   rfbuf_cnt: %d\n",
 	    tp->t_rttlow, tp->rfbuf_ts, tp->rfbuf_cnt);
+
+	db_print_indent(indent);
+	db_printf("t_fb.tfb_tcp_block_name: %s\n", tp->t_fb->tfb_tcp_block_name);
+
+	db_print_indent(indent);
+	db_printf("t_cc.name: %s\n", tp->t_cc->name);
+
+	db_print_indent(indent);
+	db_printf("_t_logstate: %d (", tp->_t_logstate);
+	db_print_bblog_state(tp->_t_logstate);
+	db_printf(")\n");
+
+	db_print_indent(indent);
+	db_printf("t_lognum: %d   t_loglimit: %d   t_logsn: %u\n",
+	    tp->t_lognum, tp->t_loglimit, tp->t_logsn);
 }
 
 DB_SHOW_COMMAND(tcpcb, db_show_tcpcb)