New submission from Alexey Akimov <sub...@gmail.com>: Double close of FD 0 when child process spawns its own child process. Bug causes wrong file descriptors to be closed. Bug affects only posix system.
How to reproduce: >>> import multiprocessing as mp >>> def child(q): ... print 'current process:', mp.current_process().name ... q.put(1) ... q.get() ... p = mp.Process(None, child, args=(mp.Queue(),)) ... p.start() ... >>> q = mp.Queue() >>> child(q) current process: MainProcess current process: Process-1 current process: Process-1:1 Process Process-1:1: Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/multiprocessing/process.py", line 236, in _bootstrap self.run() File "/usr/lib/python2.5/site-packages/multiprocessing/process.py", line 93, in run self._target(*self._args, **self._kwargs) File "<stdin>", line 4, in child File "/usr/lib/python2.5/site-packages/multiprocessing/queues.py", line 91, in get res = self._recv() IOError: [Errno 9] Bad file descriptor ---------- components: Extension Modules, Library (Lib) files: multiprocessing.patch keywords: patch messages: 89666 nosy: subdir severity: normal status: open title: multiprocessing module: Double close of sys.stdin - ID: 2811568 versions: Python 2.4, Python 2.5, Python 2.6 Added file: http://bugs.python.org/file14354/multiprocessing.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6337> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
