From 6955c13e4e08351638a150526224061f2d79040d Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Wed, 8 May 2013 15:24:42 +0900
Subject: [PATCH] hub: comment

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/lib/hub.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ryu/lib/hub.py b/ryu/lib/hub.py
index 44e5feaa..49f3a9c5 100644
--- a/ryu/lib/hub.py
+++ b/ryu/lib/hub.py
@@ -47,6 +47,9 @@ if HUB_TYPE == 'eventlet':
             try:
                 func(*args, **kwargs)
             except:
+                # log uncaught exception.
+                # note: this is an intentional divergence from gevent
+                # behaviour.  gevent silently ignores such exceptions.
                 LOG.error('hub: uncaught exception: %s',
                           traceback.format_exc())