diff --git a/arch/x86/scc/iRCCE_mailbox.c b/arch/x86/scc/iRCCE_mailbox.c
index ff4e0e3e..05656136 100644
--- a/arch/x86/scc/iRCCE_mailbox.c
+++ b/arch/x86/scc/iRCCE_mailbox.c
@@ -440,10 +440,6 @@ int iRCCE_mail_send(
 			(void*)&header, RCCE_LINE_SIZE );
 
 	RC_cache_invalidate();
-	iRCCE_MAIL_HEADER test_header;
-	iRCCE_memcpy_get( (void*)&test_header, (void*)iRCCE_mailbox_send[dest], RCCE_LINE_SIZE );
-	iRCCE_mailbox_print_header(&test_header);
-	kprintf( "'######" );
 	
 	// set senders flag
 	RC_cache_invalidate();
@@ -451,9 +447,6 @@ int iRCCE_mail_send(
 	*(int *)RCCE_fool_write_combine_buffer = 1;			
 	RC_cache_invalidate(); 
 
-	iRCCE_memcpy_get( (void*)&test_header, (void*)iRCCE_mailbox_send[dest], RCCE_LINE_SIZE );
-	iRCCE_mailbox_print_header(&test_header);
-
 	RCCE_release_lock( dest );
 
 	/* enable interrupts */
diff --git a/arch/x86/scc/icc.c b/arch/x86/scc/icc.c
index eba075d4..85910a9a 100644
--- a/arch/x86/scc/icc.c
+++ b/arch/x86/scc/icc.c
@@ -228,7 +228,7 @@ int icc_halt(void)
 	return 0;
 }
 
-#define ROUNDS 1000
+#define ROUNDS 10000
 #define CORE_A 0	 	// sender
 #define CORE_B 1		// receiver 
 
@@ -264,7 +264,6 @@ static inline void icc_mail_check_tag(iRCCE_MAIL_HEADER* mail) {
 		break;
 
 	case PING_REQ:
-		kprintf( "icc_mail_check_tag: ping_req\n" );
 		iRCCE_mail_send(0, PING_RESP, 0, NULL, mail->source);
 		break;
 
@@ -383,13 +382,16 @@ int icc_mail_ping_irq( void )
 			res = iRCCE_mail_check(rem_rank);
 		} while( res != iRCCE_SUCCESS );
 		
+		recv_header = NULL;
 		/* release mail */
 		do {
 			if( recv_header ) iRCCE_mail_release(&recv_header);
 			res = iRCCE_mail_recv(&recv_header);
 		} while( (recv_header->source != rem_rank) 
 				&& (recv_header->tag == PING_RESP) );
+	
 
+		if( !(i%1000) ) kprintf( "%d ", i );
 		iRCCE_mail_release(&recv_header);
 
 		/* start timer in first round */
@@ -400,7 +402,7 @@ int icc_mail_ping_irq( void )
 	/* stop timer */
 	timer = rdtsc() - timer;
 
-	kprintf( "timer = %ld\n", timer );
+	kprintf( "timer = %d\n", timer );
 	kprintf( "mail_pingpong needs in average %d msec (%d ticks)!\n",
 		timer/(2*ROUNDS*533), timer/(2*ROUNDS) );
 
@@ -416,7 +418,7 @@ int icc_mail_noise() {
 	iRCCE_MAIL_HEADER* recv_mail = NULL;
 
 	// leave function if not participating
-	if( (my_ue == CORE_A)  /*|| (my_ue == CORE_B)*/ ) {
+	if( (my_ue == CORE_A)  /*|| (my_ue == CORE_B) */) {
 		return -1;
 	}  
 	
@@ -425,7 +427,7 @@ int icc_mail_noise() {
 	for( ;; ) {
 		/* send a mail to each UE */
 		for( j=0; j<num_ranks; ++j ) {
-			if( (j == CORE_A) /*|| (j == CORE_B)*/ ) 
+			if( (j == CORE_A) || (j == CORE_B) ) 
 				continue;
 	
 			/* recv mails */
@@ -471,8 +473,7 @@ void icc_mail_check(int irq)
 	flags = irq_nested_disable();
 
 	if( irq == 1 ) {
-
-		kprintf( "hello from gic irq" );
+		kprintf( "got rem irq" );
 		/* read status register */
 		irq_status_reg = (volatile uint64_t*)(FPGA_BASE + IRQ_STATUS + my_ue*8);
 		irq_status = *irq_status_reg;
diff --git a/kernel/tests.c b/kernel/tests.c
index 502e2b87..3f51718e 100644
--- a/kernel/tests.c
+++ b/kernel/tests.c
@@ -109,7 +109,7 @@ static int mail_ping(void* arg) {
 }
 
 
-static int STDCALL mail_noise(void*arg) {
+static int mail_noise(void*arg) {
 	icc_mail_noise(); // generate noise in the mesh
 	return 0;
 }
@@ -280,7 +280,7 @@ int test_init(void)
 	//create_kernel_task(NULL, producer, NULL);
 	//create_kernel_task(NULL, consumer, NULL);
 	create_kernel_task(NULL, mail_ping, NULL);
-	//create_kernel_task(NULL, mail_noise, NULL);
+	create_kernel_task(NULL, mail_noise, NULL);
 	//create_user_task(NULL, "/bin/hello", argv);
 	//create_user_task(NULL, "/bin/tests", argv);
 	//create_user_task(NULL, "/bin/jacobi", argv);
@@ -289,6 +289,5 @@ int test_init(void)
 	//sleep(5);
 	//create_user_task(NULL, "/bin/client", client_argv);
 
-	kprintf( "####" );
 	return 0;
 }