diff --git a/ChangeLog b/ChangeLog
index 1368c12097..5bce3f2e70 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Mar 25 19:34:05 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* bootstraptest/test_knownbug.rb: add tests.  [ruby-dev:34128]
+
 Tue Mar 25 19:09:04 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* array.c (ary_new): fix size check.  [ruby-dev:34123]
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index 56014b2711..40b9441c11 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -64,3 +64,36 @@ assert_equal 'ok', %q{
 assert_normal_exit %q{
   sprintf("% 0e", 1.0/0.0)
 }
+
+assert_normal_exit %q{
+  g = Module.enum_for(:new)
+  loop { g.next }
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  Fiber.new(&Object.method(:class_eval)).resume("foo")
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  Thread.new("foo", &Object.method(:class_eval)).join
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  g = enum_for(:local_variables)
+  loop { g.next }
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  g = enum_for(:block_given?)
+  loop { g.next }
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  g = enum_for(:binding)
+  loop { g.next }
+}, '[ruby-dev:34128]'
+
+assert_normal_exit %q{
+  g = "abc".enum_for(:scan, /./)
+  loop { g.next }
+}, '[ruby-dev:34128]'