diff --git a/package/openwrt/files/etc/init.d/smartdns b/package/openwrt/files/etc/init.d/smartdns
index b8462a8..ddbc095 100644
--- a/package/openwrt/files/etc/init.d/smartdns
+++ b/package/openwrt/files/etc/init.d/smartdns
@@ -17,6 +17,7 @@ BLACKLIST_IP_CONF="$SMARTDNS_CONF_DIR/blacklist-ip.conf"
 CUSTOM_CONF="$SMARTDNS_CONF_DIR/custom.conf"
 SMARTDNS_CONF_TMP="${SMARTDNS_CONF}.tmp"
 COREDUMP="0"
+RESPAWN="0"
 
 set_forward_dnsmasq()
 {
@@ -110,6 +111,7 @@ clear_iptable()
 
 service_triggers() {
 	procd_add_reload_trigger firewall
+	procd_add_reload_trigger smartdns
 }
 
 
@@ -284,7 +286,9 @@ load_service() {
 	fi
 	
 	procd_set_param command /usr/sbin/smartdns -f -c $SMARTDNS_CONF $args
-	procd_set_param respawn ${respawn_threshold:-3600} ${respawn_timeout:-5} ${respawn_retry:-5}
+	if [ "$RESPAWN" = "1" ]; then
+		procd_set_param respawn ${respawn_threshold:-3600} ${respawn_timeout:-5} ${respawn_retry:-5}
+	fi
 	procd_set_param file "$SMARTDNS_CONF"
 	procd_close_instance
 }
diff --git a/src/dns_server.c b/src/dns_server.c
index 4fc31ab..779e9b6 100644
--- a/src/dns_server.c
+++ b/src/dns_server.c
@@ -1388,6 +1388,7 @@ static int _dns_server_recv(struct dns_server_conn *client, unsigned char *inpac
 	if (dns_client_query(request->domain, qtype, dns_server_resolve_callback, request) != 0) {
 		_dns_server_request_release(request);
 		_dns_server_request_remove(request);
+		request = NULL;
 		goto errout;
 	}