Index: include/asterisk/lock.h
===================================================================
--- include/asterisk/lock.h	(revision 84889)
+++ include/asterisk/lock.h	(working copy)
@@ -165,6 +165,7 @@
 						const char *mutex_name, ast_mutex_t *t,
 						pthread_mutexattr_t *attr) 
 {
+	int i;
 #ifdef AST_MUTEX_INIT_W_CONSTRUCTORS
 	int canlog = strcmp(filename, "logger.c");
 
@@ -180,10 +181,12 @@
 	}
 #endif
 
-	t->file[0] = filename;
-	t->lineno[0] = lineno;
-	t->func[0] = func;
-	t->thread[0]  = 0;
+	for (i = 0; i < AST_MAX_REENTRANCY; i++) {
+		t->file[i] = NULL;
+		t->lineno[i] = 0;
+		t->func[i] = NULL;
+		t->thread[i]  = 0;
+	}
 	t->reentrancy = 0;
 	t->track = track;