# XXX currently fails: any other permutation works fine.
# p1=u,p2=b ok p1=u,p2=u ok p1=b,p2=b ok
# also fails using UnbufferedPipeline as well
+ #pipe1 = ExampleUnBufAdd1Pipe()
+ #pipe2 = ExampleBufAdd1Pipe()
pipe1 = ExampleBufAdd1Pipe()
pipe2 = ExampleUnBufAdd1Pipe()