diff --git a/drivers/net/mmnif.c b/drivers/net/mmnif.c
index c2c09fa2..bf647a64 100644
--- a/drivers/net/mmnif.c
+++ b/drivers/net/mmnif.c
@@ -757,7 +757,7 @@ err_t mmnif_tx(struct netif* netif, struct pbuf* p)
 	mmnif_write_rx_pending(dest_ip,pending);
 
 	/* and unlock the dest_ip mm_rx_buffer_hdr */
-//	mmnif_unlock_rx_hdr(dest_ip);
+        mmnif_unlock_rx_hdr(dest_ip);
 
 	/* check if there is a space in the queue without overwriting another packet */
 	if ((queued + pending) > MMNIF_RX_QUEUELEN)
@@ -778,7 +778,7 @@ err_t mmnif_tx(struct netif* netif, struct pbuf* p)
 		mmnif_write_rx_buffl(dest_ip, pos, p->payload,p->tot_len);
 
 	/* like above ensure we are the only ones editing the hdr */
-//	mmnif_lock_rx_hdr(dest_ip);
+        mmnif_lock_rx_hdr(dest_ip);
 
 	queued = mmnif_read_rx_queue(dest_ip);
 	pending  = mmnif_read_rx_pending(dest_ip);
diff --git a/kernel/tests.c b/kernel/tests.c
index 2e05afbb..aaeb86ea 100644
--- a/kernel/tests.c
+++ b/kernel/tests.c
@@ -214,7 +214,7 @@ void* server_task(void* e)
 
     tmp1 = get_clock_tick();
 
-    for (n = 0; n < 1024*1024*4 ; n++)
+    for (n = 0; n < 1024*4 ; n++)
     {
         if (!(n%100))
         kprintf("%d-",n);
@@ -281,7 +281,7 @@ void* client_task(void* e)
         /* spew-out the results and bail out of here! */
         kprintf("%s\n", dir);
 
-        for (n = 0; n <1024*1024*4; n++)
+        for (n = 0; n <1024*4; n++)
         {
             recv(sd,dir,sizeof(dir),0);
   //          udelay(100);