[New-bugs-announce] [issue13817] deadlock in subprocess while running several threads using Popen

Christoph Glaubitz report at bugs.python.org
Wed Jan 18 19:00:36 CET 2012


New submission from Christoph Glaubitz <chris+lp at chrigl.de>:

Starting several threads, each just starting a subprocess.Popen and use communicate cause a deadlock in subprocess. (see attached file)

I can only reproduce this with python 2.7.2, not with any other versions. 2.6.5, 2.6.7 and 3.2.2 are working fine. Also 2.4.6 is working, with a problem fixed by http://bugs.python.org/issue1731717.

The attached script does not dead lock all the time, but at least every second call.

I am on a linux x86_64. The python's are compiled by hand, except of 2.6.5.

----------
files: subprocess_deadlock.py
messages: 151556
nosy: glaubich
priority: normal
severity: normal
status: open
title: deadlock in subprocess while running several threads using Popen
type: behavior
versions: Python 2.7
Added file: http://bugs.python.org/file24272/subprocess_deadlock.py

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<http://bugs.python.org/issue13817>
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