diff -r 9efefcab817e Lib/test/test_socket.py
--- a/Lib/test/test_socket.py	Fri Sep 12 10:39:48 2014 -0400
+++ b/Lib/test/test_socket.py	Fri Sep 12 11:37:45 2014 -0700
@@ -2733,6 +2733,7 @@
         self.createAndSendFDs(1)
 
     @unittest.skipIf(sys.platform == "darwin", "skipping, see issue #12958")
+    @unittest.skipIf(sys.platform.startswith("aix"), "skipping, see issue #12958")
     @requireAttrs(socket, "CMSG_SPACE")
     def testFDPassSeparate(self):
         # Pass two FDs in two separate arrays.  Arrays may be combined
@@ -2743,6 +2744,7 @@
 
     @testFDPassSeparate.client_skip
     @unittest.skipIf(sys.platform == "darwin", "skipping, see issue #12958")
+    @unittest.skipIf(sys.platform.startswith("aix"), "skipping, see issue #12958")
     def _testFDPassSeparate(self):
         fd0, fd1 = self.newFDs(2)
         self.assertEqual(
@@ -2755,6 +2757,7 @@
             len(MSG))
 
     @unittest.skipIf(sys.platform == "darwin", "skipping, see issue #12958")
+    @unittest.skipIf(sys.platform.startswith("aix"), "skipping, see issue #12958")
     @requireAttrs(socket, "CMSG_SPACE")
     def testFDPassSeparateMinSpace(self):
         # Pass two FDs in two separate arrays, receiving them into the
@@ -2767,6 +2770,7 @@
 
     @testFDPassSeparateMinSpace.client_skip
     @unittest.skipIf(sys.platform == "darwin", "skipping, see issue #12958")
+    @unittest.skipIf(sys.platform.startswith("aix"), "skipping, see issue #12958")
     def _testFDPassSeparateMinSpace(self):
         fd0, fd1 = self.newFDs(2)
         self.assertEqual(