diff -r 78c838980258 -r 07dd2a7df66e master/fsm_slave.c
--- a/master/fsm_slave.c	Thu Feb 22 10:15:02 2007 +0000
+++ b/master/fsm_slave.c	Thu Feb 22 13:39:19 2007 +0000
@@ -215,8 +215,9 @@
 
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
-        EC_ERR("Failed to receive station address datagram for slave %i.\n",
-               fsm->slave->ring_position);
+        EC_ERR("Failed to receive station address datagram for slave %i"
+                " (datagram state %i)\n",
+                fsm->slave->ring_position, datagram->state);
         return;
     }
 
@@ -253,8 +254,9 @@
 
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
-        EC_ERR("Failed to receive AL state datagram from slave %i.\n",
-               fsm->slave->ring_position);
+        EC_ERR("Failed to receive AL state datagram from slave %i"
+                " (datagram state %i).\n",
+               fsm->slave->ring_position, datagram->state);
         return;
     }
 
@@ -299,8 +301,9 @@
 
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
-        EC_ERR("Failed to receive base data datagram for slave %i.\n",
-               slave->ring_position);
+        EC_ERR("Failed to receive base data datagram for slave %i"
+                " (datagram state %i).\n",
+               slave->ring_position, datagram->state);
         return;
     }
 
@@ -348,8 +351,9 @@
 
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
-        EC_ERR("Failed to receive DL status datagram from slave %i.\n",
-               slave->ring_position);
+        EC_ERR("Failed to receive DL status datagram from slave %i"
+                " (datagram state %i).\n",
+               slave->ring_position, datagram->state);
         return;
     }
 
@@ -741,7 +745,8 @@
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
         EC_ERR("Failed to receive sync manager configuration datagram for"
-               " slave %i.\n", slave->ring_position);
+               " slave %i (datagram state %i).\n",
+               slave->ring_position, datagram->state);
         return;
     }
 
@@ -856,8 +861,8 @@
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
         EC_ERR("Failed to receive process data sync manager configuration"
-               " datagram for slave %i.\n",
-               slave->ring_position);
+               " datagram for slave %i (datagram state %i).\n",
+               slave->ring_position, datagram->state);
         return;
     }
 
@@ -921,8 +926,9 @@
 
     if (datagram->state != EC_DATAGRAM_RECEIVED) {
         fsm->state = ec_fsm_slave_state_error;
-        EC_ERR("Failed to receive FMMUs datagram for slave %i.\n",
-               fsm->slave->ring_position);
+        EC_ERR("Failed to receive FMMUs datagram for slave %i"
+                " (datagram state %i).\n",
+               fsm->slave->ring_position, datagram->state);
         return;
     }