Test_ioctl and test_tarfile are skipped on MacOS9.
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 8b11f05..4a8bc75 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -630,6 +630,7 @@
         test_gl
         test_grp
         test_iconv_codecs
+        test_ioctl
         test_imgfile
         test_largefile
         test_linuxaudiodev
@@ -651,6 +652,7 @@
         test_socketserver
         test_sunaudiodev
         test_sundry
+        test_tarfile
         test_timing
         test_unicode_file
         """,