--- rpl/src/interruptions.c	2010/08/26 19:07:41	1.37
+++ rpl/src/interruptions.c	2010/08/31 09:57:43	1.38
@@ -1597,6 +1597,7 @@ verrouillage_gestionnaire_signaux()
 		while(sem_trywait(semaphore_liste_threads) == -1)
 #		endif
 		{
+			perror("sem_trywait");
 			if ((errno != EINTR) && (errno != EAGAIN))
 			{
 				pthread_sigmask(SIG_SETMASK, &oldset, NULL);