python-2.7 - joblib が失敗した後に shm メモリを解放する方法

Question

joblib（sklearn GridSearchCV）を使用するpythonタスクを開始し、操作を停止（Ctrl-C）した後、停止しました

^CProcess PoolWorker-42:
Traceback (most recent call last):
  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
self.run()
  File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run
self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in worker
task = get()
  File "/home/project/.virtualenvs/tripcase/local/lib/python2.7/site-packages/sklearn/externals/joblib/pool.py", line 360, in get
    return recv()
KeyboardInterrupt
^CProcess PoolWorker-43:
Traceback (most recent call last):
  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in worker
    task = get()
  File "/home/project/.virtualenvs/tripcase/local/lib/python2.7/site-packages/sklearn/externals/joblib/pool.py", line 360, in get
    return recv()
KeyboardInterrupt
^CProcess PoolWorker-44:
Traceback (most recent call last):
  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in worker
    task = get()
  File "/home/project/.virtualenvs/tripcase/local/lib/python2.7/site-packages/sklearn/externals/joblib/pool.py", line 360, in get
    return recv()
KeyboardInterrupt

最後に、父プロセスを強制終了しましたが、 /dev/shm 内のファイルで立ち往生しています。それらを安全に削除するにはどうすればよいですか?