diff --git a/ChangeLog b/ChangeLog
index e226a12cb3..5987e07f93 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Dec 24 17:59:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_lock): reverted.
+
+	* thread.c (rb_barrier_wait): check for recursive wait.
+
 Mon Dec 24 17:50:54 2007  Tanaka Akira  <akr@fsij.org>
 
 	* eval.c (function_call_may_return_twice_jmp_buf): removed.
diff --git a/load.c b/load.c
index bc80e0b154..a334fd6ee7 100644
--- a/load.c
+++ b/load.c
@@ -345,8 +345,7 @@ load_lock(const char *ftptr)
 	st_insert(loading_tbl, (st_data_t)ftptr, data);
 	return (char *)ftptr;
     }
-    rb_barrier_wait((VALUE)data);
-    return 0;
+    return RTEST(rb_barrier_wait((VALUE)data)) ? (char *)ftptr : 0;
 }
 
 static void
diff --git a/thread.c b/thread.c
index 5fd2033f08..ae0c3b3bfb 100644
--- a/thread.c
+++ b/thread.c
@@ -2555,6 +2555,9 @@ rb_barrier_wait(VALUE self)
 	if (thlist_signal(&barrier->waiting, 1, &barrier->owner)) return Qfalse;
 	return Qtrue;
     }
+    else if (barrier->owner == GET_THREAD()) {
+	return Qfalse;
+    }
     else {
 	*barrier->tail = q = ALLOC(rb_thread_list_t);
 	q->th = GET_THREAD();