2 files changed, 20 insertions, 0 deletions
diff --git a/test/ruby/bug-11928.rb b/test/ruby/bug-11928.rb
new file mode 100644
index 0000000000..72b3b0f8ed
--- /dev/null
+++ b/test/ruby/bug-11928.rb
@@ -0,0 +1,14 @@
+class Segfault
+  at_exit { Segfault.new.segfault }
+
+  define_method 'segfault' do
+    n = 11928
+    v = nil
+    i = 0
+    while i < n
+      i += 1
+      v = (foo rescue $!).local_variables
+    end
+    assert_equal(%i[i n v], v.sort)
+  end
+end
diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 1148277a1b..91732dd062 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -701,6 +701,12 @@ end.join
     assert_equal(%i[a b c d e f g], e.local_variables.sort)
   end
 
+  def test_name_error_info_parent_iseq_mark
+    assert_separately(['-', File.join(__dir__, 'bug-11928.rb')], <<-'end;')
+      -> {require ARGV[0]}.call
+    end;
+  end
+
   def test_output_string_encoding
     # "\x82\xa0" in cp932 is "\u3042" (Japanese hiragana 'a')
     # change $stderr to force calling rb_io_write() instead of fwrite()