diff -r 8ec4acfdb851 Lib/asyncio/unix_events.py
--- a/Lib/asyncio/unix_events.py	Wed Apr 01 11:09:43 2015 +0200
+++ b/Lib/asyncio/unix_events.py	Wed Apr 01 15:50:06 2015 +0200
@@ -358,10 +358,18 @@ class _UnixReadPipeTransport(transports.
                 self._loop.call_soon(self._call_connection_lost, None)
 
     def pause_reading(self):
+        if self._closing:
+            raise RuntimeError('Cannot pause_reading() when closing')
         self._loop.remove_reader(self._fileno)
+        if self._loop.get_debug():
+            logger.debug("%r pauses reading", self)
 
     def resume_reading(self):
+        if self._closing:
+            return
         self._loop.add_reader(self._fileno, self._read_ready)
+        if self._loop.get_debug():
+            logger.debug("%r resumes reading", self)
 
     def close(self):
         if not self._closing: