Index: libcfa/src/concurrency/kernel.cfa
===================================================================
--- libcfa/src/concurrency/kernel.cfa	(revision 3caf5e37ee553cf8f3b0cae6d46bb65b3d8293fa)
+++ libcfa/src/concurrency/kernel.cfa	(revision 202c80b7ff747d21357a70dd8206e823ea6353dd)
@@ -684,4 +684,7 @@
 
 static void idle_sleep(processor * this, io_future_t & future, iovec & iov) {
+	/* paranoid */ verify( this->idle_wctx.evfd != 1 );
+	/* paranoid */ verify( this->idle_wctx.evfd != 2 );
+
 	// Tell everyone we are ready to go do sleep
 	for() {
@@ -901,5 +904,5 @@
 	void print_stats_now( cluster & this, int flags ) {
 		crawl_cluster_stats( this );
-		__print_stats( this.stats, this.print_stats, "Cluster", this.name, (void*)&this );
+		__print_stats( this.stats, flags, "Cluster", this.name, (void*)&this );
 	}
 #endif