Merge "Log original dropped exception when a new exception occurs"

nova/exception.py

@@ -107,6 +107,8 @@ def wrap_exception(notifier=None, publisher_id=None, event_type=None,
     # TODO(sandy): Find a way to import nova.notifier.api so we don't have
     # to pass it in as a parameter. Otherwise we get a cyclic import of
     # nova.notifier.api -> nova.utils -> nova.exception :(
+    # TODO(johannes): Also, it would be nice to use
+    # utils.save_and_reraise_exception() without an import loop
     def inner(f):
         def wrapped(*args, **kw):
             try: