diff --git a/CHANGES.md b/CHANGES.md
index 72ac686..a7158cd 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,7 @@
 
 * Remove EZRSS provider
 * Update Tornado webserver to 4.2b1 (61a16c9)
+* Update change to suppress reporting of Tornado exception error 1 to updated package (ref:hacks.txt)
 
 
 ### 0.9.0 (2015-05-18 14:33:00 UTC)
diff --git a/tornado/http1connection.py b/tornado/http1connection.py
index 6226ef7..5d6f4c2 100644
--- a/tornado/http1connection.py
+++ b/tornado/http1connection.py
@@ -698,8 +698,9 @@ class HTTP1ServerConnection(object):
                     # This exception was already logged.
                     conn.close()
                     return
-                except Exception:
-                    gen_log.error("Uncaught exception", exc_info=True)
+                except Exception as e:
+                    if 1 != e.errno:
+                        gen_log.error("Uncaught exception", exc_info=True)
                     conn.close()
                     return
                 if not ret:
diff --git a/tornado/iostream.py b/tornado/iostream.py
index 3a175a6..f255dc1 100644
--- a/tornado/iostream.py
+++ b/tornado/iostream.py
@@ -644,8 +644,9 @@ class BaseIOStream(object):
             pos = self._read_to_buffer_loop()
         except UnsatisfiableReadError:
             raise
-        except Exception:
-            gen_log.warning("error on read", exc_info=True)
+        except Exception as e:
+            if 1 != e.errno:
+                gen_log.warning("error on read", exc_info=True)
             self.close(exc_info=True)
             return
         if pos is not None: