diff --git a/src/main.c b/src/main.c
index 85fc03d..2f9294e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1079,7 +1079,9 @@ int   main(int argc, char **argv)
 	uint32_t 	i=0;	
 	void		*main_conf_handle=NULL, *rssb_conf_handle=NULL;
 
-	memset(&g_frag_run, 0, sizeof(frag_rssb_parameter_t));	
+	memset(&g_frag_run, 0, sizeof(frag_rssb_parameter_t));
+	g_frag_run.recv_msg_fd=-1;
+	g_frag_run.recv_msg_sd=-1;
 	memset(&g_frag_cfg, 0, sizeof(frag_rssb_configure_t));
 	memset(&g_frag_stat, 0, sizeof(frag_rssb_status_t));
 
diff --git a/src/message.c b/src/message.c
index f3a1a07..a12759a 100644
--- a/src/message.c
+++ b/src/message.c
@@ -1081,8 +1081,14 @@ void* recv_response_msg(void *param)
 	{
 		/*recv msg*/
 		FD_ZERO(&rset);
-		FD_SET(g_frag_run.recv_msg_fd,&rset);
-		FD_SET(g_frag_run.recv_msg_sd,&rset);
+		if(g_frag_run.recv_msg_fd>=0)
+		{
+			FD_SET(g_frag_run.recv_msg_fd,&rset);
+		}
+		if(g_frag_run.recv_msg_sd>=0)
+		{
+			FD_SET(g_frag_run.recv_msg_sd,&rset);
+		}
 		if(-1==select(maxfdpl,&rset,NULL,NULL,NULL))
 		{
 			MESA_handle_runtime_log(g_frag_run.logger, RLOG_LV_FATAL, FRAG_REASSEMBLY_MODULE_NAME,