diff -r 3cf22779c0cb -r b7c865818f0a master/fsm_master.c
--- a/master/fsm_master.c	Mon Dec 29 15:27:39 2008 +0000
+++ b/master/fsm_master.c	Mon Dec 29 15:39:35 2008 +0000
@@ -833,6 +833,10 @@
     ec_master_t *master = fsm->master;
     ec_sdo_request_t *request = fsm->sdo_request;
 
+    // FIXME
+    // Check if request is still existing (may have been deleted with a slave
+    // configuration).
+
     if (ec_fsm_coe_exec(&fsm->fsm_coe)) return;
 
     if (!ec_fsm_coe_success(&fsm->fsm_coe)) {