tracd js script resource loading intermittently crashes python

[lkraav <leho@…>]

Not sure why or how, but some of the js resources loadings crash tracd 1.1.2b1. I'm not sure if there's a pattern whether some JS resources crash more than others. The crash is usually noticeable when jquery-ui doesn't load and some UI elements don't get their dynamics on that pageview.

This happens intermittently. A bunch of pageloads is fine, then one fails, etc. Less than 5 users are usually working with this instance. This tracd is sitting behind an Apache reverse proxy.

There's a relatively highly customized site.html active.

Trac detected an internal error:

SystemError: /var/tmp/portage/dev-lang/python-2.7.7/work/Python-2.7.7/Objects/tupleobject.c:142: bad argument to internal function

Traceback:

File "/home/trac/src/trac.git/trac/web/main.py", line 550, in _dispatch_request
  dispatcher.dispatch(req)
File "/home/trac/src/trac.git/trac/web/main.py", line 224, in dispatch
  resp = chosen_handler.process_request(req)
File "/home/trac/src/trac.git/trac/web/chrome.py", line 632, in process_request
  req.send_file(path, get_mimetype(path))
File "/home/trac/src/trac.git/trac/web/api.py", line 639, in send_file
  self.send_response(304)
File "/home/trac/src/trac.git/trac/web/main.py", line 82, in send_response
  self.session.save()
File "/home/trac/src/trac.git/trac/web/api.py", line 384, in __getattr__
  value = self.callbacks[name](self)
File "/home/trac/src/trac.git/trac/web/main.py", line 305, in _get_session
  return Session(self.env, req)
File "/home/trac/src/trac.git/trac/web/session.py", line 210, in __init__
  self.get_session(req.authname, authenticated=True)
File "/home/trac/src/trac.git/trac/web/session.py", line 227, in get_session
  super(Session, self).get_session(sid, authenticated)
File "/home/trac/src/trac.git/trac/web/session.py", line 89, in get_session
  """, (sid, int(authenticated))))
File "/home/trac/src/trac.git/trac/db/util.py", line 128, in execute
  cursor.execute(query, params if params is not None else [])
File "/home/trac/src/trac.git/trac/db/util.py", line 72, in execute
  return self.cursor.execute(sql_escape_percent(sql), args)
File "/home/trac/src/trac.git/trac/db/sqlite_backend.py", line 82, in execute
  self.rows = PyFormatCursor.fetchall(self)

System Information

Trac 1.1.2beta1 Genshi 0.7 (with speedups) Pygments 1.6 pysqlite 2.6.0 Python 2.7.7 (default, Sep 16 2014, 10:26:02) [GCC 4.7.3] setuptools 0.9.8 SQLite 3.8.2

Installed Plugins

Name	Version	Location
NavAdd	0.3	/home/trac/src/trac-hacks.git/navaddplugin/trunk
trac-proxy-auth	0.2.0	/home/trac/src/trac-proxy-auth.hg/src
tracvatar	1.9	/home/trac/src/tracvatar.git

[Jun Omae]

It seems like ​Python-issue:15108.

[lkraav <leho@…>]

Great find! Wow, bad bad bad. Last traffic 2012 and nothing like nearing resolution. Any ideas what to try within tracd context?