Index: uspace/lib/nic/src/nic_driver.c
===================================================================
--- uspace/lib/nic/src/nic_driver.c	(revision 1f1fa6420a71dbef5d82ed476f6f5411487e7144)
+++ uspace/lib/nic/src/nic_driver.c	(revision c3b25985a33ea9ae992d45cc6df7c7a892242e79)
@@ -532,4 +532,6 @@
 	fibril_rwlock_write_lock(&nic_data->stats_lock);
 
+	log_msg(LOG_DEFAULT, LVL_WARN, "nic_received_frame(), check=%d", check);
+
 	if (nic_data->state == NIC_STATE_ACTIVE && check) {
 		nic_data->stats.receive_packets++;