Still happens sometimes:

http://www.python.org/dev/buildbot/all/builders/x86%20Gentoo%203.x/builds/133/steps/test/logs/stdio

----------------------------------------
Traceback (most recent call last):
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 582, in process_request_thread
    self.finish_request(request, client_address)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 641, in __init__
    self.finish()
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 713, in finish
    self.socket.sendto(self.wfile.getvalue(), self.client_address)
socket.error: [Errno 9] Bad file descriptor
test test_logging failed -- Traceback (most recent call last):
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/test/test_logging.py", line 2525, in test_listen_config_10_ok
    ], stream=output)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/test/test_logging.py", line 162, in assert_log_lines
    '%s vs. %s' % (actual_lines, expected_values))
AssertionError: 4 != 2 : ["Exception happened during processing of request from ('192.168.0.106', 33509)", '----------------------------------------', 'WARNING ++ 1', 'ERROR ++ 4'] vs. [('WARNING', '1'), ('ERROR', '4')]

----------------------------------------
Exception happened during processing of request from ('192.168.0.106', 33512)
Traceback (most recent call last):
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 582, in process_request_thread
    self.finish_request(request, client_address)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 641, in __init__
    self.finish()
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/socketserver.py", line 713, in finish
    self.socket.sendto(self.wfile.getvalue(), self.client_address)
socket.error: [Errno 9] Bad file descriptor
----------------------------------------