Session object crash apache

• Key: MODPYTHON-188
• Type: Bug
• Status: Closed
• Resolution: Invalid
• Priority: Trivial
• Assignee: Unassigned
• Reporter: Uka Mata
• Component/s: session
• Affects Version/s: 3.1.4

Environment

Gentoo 2006.1 with Apache 2.0.58
Apache details:
# emerge -vp apache
[ebuild R ] net-www/apache-2.0.58-r2 USE="apache2 ssl threads -debug -doc -ldap -mpm-itk -mpm-leader -mpm-peruser -mpm-prefork -mpm-threadpool -mpm-worker -no-suexec -static-modules" 0 kB

Description

Starting two times Session crash apache, example:

#!/usr/bin/python
# -*- coding: iso-8859-1 -*-

import sys
from mod_python import apache, util, Session

def index(req):
        req.content_type = "text/plain; charset=iso-8859-1"
        req.send_http_header()
        req.write("Hello world!\n")
        sess1=Session.Session(req)
        sess2=Session.Session(req)
        return "Bye bye!"


When I have reloaded this page several times, apache has stopped to send pages, and I cannot stop it using the init scripts and therefore I need to use "kill -9"

The log said:
[Tue Sep 05 11:42:45 2006] [warn] child process 27269 still did not exit, sending a SIGTERM
[Tue Sep 05 11:42:47 2006] [warn] child process 27269 still did not exit, sending a SIGTERM
[Tue Sep 05 11:42:49 2006] [warn] child process 27269 still did not exit, sending a SIGTERM
[Tue Sep 05 11:42:51 2006] [error] child process 27269 still did not exit, sending a SIGKILL



Sometimes I have received this page:
Hello world!

<pre>
Mod_python error: "PythonHandler mod_python.publisher"

Traceback (most recent call last):

  File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in HandlerDispatch
    result = object(req)

  File "/usr/lib/python2.4/site-packages/mod_python/publisher.py", line 136, in handler
    result = util.apply_fs_data(object, req.form, req=req)

  File "/usr/lib/python2.4/site-packages/mod_python/util.py", line 361, in apply_fs_data
    return object(**args)

  File "/var/www/localhost/htdocs/index.py", line 11, in index
    sess1=Session.Session(req)

  File "/usr/lib/python2.4/site-packages/mod_python/Session.py", line 389, in Session
    timeout=timeout, lock=lock)

  File "/usr/lib/python2.4/site-packages/mod_python/Session.py", line 294, in __init__
    timeout=timeout, lock=lock)

  File "/usr/lib/python2.4/site-packages/mod_python/Session.py", line 131, in __init__
    self.lock() # lock new sid

  File "/usr/lib/python2.4/site-packages/mod_python/Session.py", line 215, in lock
    _apache._global_lock(self._req.server, self._sid)

ValueError: Failed to acquire global mutex lock

</pre>

## Stopping apache

solaris apache2 # /etc/init.d/apache2 stop
 * Stopping apache2 ... [ ok ]
solaris apache2 # ps -A
  PID TTY TIME CMD
[...]
27123 ? 00:00:00 apache2
27269 ? 00:00:00 apache2
27370 ? 00:00:00 apache2 <defunct>
27511 ? 00:00:00 apache2 <defunct>
27544 ? 00:00:00 apache2 <defunct>
27617 pts/1 00:00:00 ps
solaris apache2 #