[MODPYTHON-188] Session object crash apache

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Invalid
• Affects Version/s: 3.1.4
• Component/s: session

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

• Assignee: Unassigned
• Reporter: Uka Mata
• Created: 05/Sep/06 10:43
• Updated: 05/Sep/06 11:09
• Resolved: 05/Sep/06 11:09

Description

Starting two times Session crash apache, example:

#!/usr/bin/python

1. 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>

1. 1. 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 #