foo.diff

diff --git a/scipy/interpolate/tests/test_fitpack.py b/scipy/interpolate/tests/test_fitpack.py
index f4d75ba..e6aaabd 100644
--- a/scipy/interpolate/tests/test_fitpack.py
+++ b/scipy/interpolate/tests/test_fitpack.py
@@ -325,8 +325,12 @@ class TestSplder(object):
     def test_kink(self):
         # Should refuse to differentiate splines with kinks
 
-        spl2 = insert(0.5, self.spl, m=2)
-        splder(spl2, 2)  # Should work
+        try:
+            spl2 = insert(0.5, self.spl, m=2)
+            splder(spl2, 2)  # Should work
+        except:
+            np.savez('dump-new-bad.npz', tck=self.spl, tck2=spl2)
+            raise
         assert_raises(ValueError, splder, spl2, 3)
 
         spl2 = insert(0.5, self.spl, m=3)