diff --git a/kernel/tests.c b/kernel/tests.c
index 00198240..494b7c5a 100644
--- a/kernel/tests.c
+++ b/kernel/tests.c
@@ -148,7 +148,7 @@ __inline int get_core_no(void)
 void* server_task(void* e)
 {
     int sockfd, newsockfd, portno, clilen;
-    char buffer[4096];
+    char buffer[512];
     struct sockaddr_in serv_addr, cli_addr;
     int  n;
     uint64_t tmp1,tmp2;
@@ -218,7 +218,11 @@ void* server_task(void* e)
     {
         if (!(n%100))
         kprintf("%d-",n);
-        send(newsockfd,buffer,sizeof(buffer),0);
+        if (send(newsockfd,buffer,sizeof(buffer),0) < 0);
+        {
+            kprintf("error on sending");
+            break;
+        }
  //       if (!(n%100))
    //         sleep(1);
     //    udelay(100);