IOError: [Errno 10] No child processes

[nat@…]

How to Reproduce

While doing a POST operation on /admin/bitten/configs/www, Trac issued an internal error.

I was putting in a new buildscript for bitten.

Request parameters:

{'__FORM_TOKEN': u'5668f64ec3f120e39f1bd5f0',
 'cat_id': u'bitten',
 'description': u'This is the global build. It builds all of the apps.',
 'label': u'iFixit',
 'max_rev': u'',
 'min_rev': u'',
 'name': u'www',
 'panel_id': u'configs',
 'path': u'trunk',
 'path_info': u'www',
 'recipe': u'<build xmlns:sh="http://bitten.cmlenz.net/tools/sh">\r\n<step>\r\n<sh:exec file="/bin/echo" args="hello world" />\r\n</step>\r\n\r\n</build>',
 'save': u'Save'}

User Agent was: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1) Gecko/20090624 Firefox/3.5

System Information

Trac	0.11.4
Python	2.4.3 (#1, Mar 14 2007, 19:01:42) [GCC 4.1.1 20070105 (Red Hat 4.1.1-52)]
setuptools	0.6c7
MySQL	server: "5.0.51a", client: "5.0.51a", thread-safe: 0
MySQLdb	1.2.1
Genshi	0.5.1
mod_python	3.3.1
Bitten	0.6dev
Subversion	1.4.2 (r22196)
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/Trac-0.11.4-py2.4.egg/trac/web/main.py", line 435, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/Trac-0.11.4-py2.4.egg/trac/web/main.py", line 205, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/Trac-0.11.4-py2.4.egg/trac/admin/web_ui.py", line 113, in process_request
    path_info)
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/admin.py", line 163, in render_admin_panel
    self._update_config(req, config)
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/admin.py", line 278, in _update_config
    Recipe(xmlio.parse(recipe_xml)).validate()
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/recipe.py", line 229, in __init__
    self.ctxt = Context(basedir, config, vars)
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/recipe.py", line 54, in __init__
    self.config = config or Configuration()
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/build/config.py", line 47, in __init__
    self._merge_sysinfo(parser, properties)
  File "/usr/lib/python2.4/site-packages/Bitten-0.6dev-py2.4.egg/bitten/build/config.py", line 52, in _merge_sysinfo
    system, _, release, version, machine, processor = platform.uname()
  File "/usr/lib64/python2.4/platform.py", line 1007, in uname
    processor = _syscmd_uname('-p','')
  File "/usr/lib64/python2.4/platform.py", line 794, in _syscmd_uname
    rc = f.close()
IOError: [Errno 10] No child processes

[Remy Blank]

Pretty close, but still WrongTrac (or actually a PluginIssue). Please report this issue to the Bitten project (​http://bitten.edgewall.org/).

[Nat Welch <nat@…>]

Alright, I actually fixed it by restarting memcache, but thanks for the heads up.