note about package to install to run tests on debian. [skip ci]

README.rst

@@ -88,7 +88,6 @@ can be done using tox::
   pip install tox
   tox
 
-
 The testrunner accepts a ``--coverage`` argument to enable code
 coverage metrics through the `coverage.py`_ package. That would go
 something like this::
@@ -113,6 +112,9 @@ common code smells, etc).
    :target: https://landscape.io/github/gevent/gevent/master
    :alt: Code Health
 
+.. note:: On Debian, you will probably need ``libpythonX.Y-testsuite``
+          installed to run all the tests.
+
 Continuous integration
 ----------------------
 

src/gevent/baseserver.py

@@ -45,7 +45,8 @@ class BaseServer(object):
         :meth:`set_handle`.
 
         When the request handler returns, the socket used for the
-        request will be closed.
+        request will be closed. Therefore, the handler must not return if
+        the socket is still in use (for example, by manually spawned greenlets).
 
     :keyword spawn: If provided, is called to create a new
         greenlet to run the handler. By default,