modwsgi + Pylons gives segmentation fault

2009-02-24 Thread cropr

I am trying to setup mod_wsgi + Pylons on my deployment server (a
CentOS 5.2 machine), but I get this error message in the apache log
files

[Tue Feb 24 11:24:32 2009] [notice] child pid 12226 exit signal
Segmentation fault (11)

a standard wsgi test programs works fine.

The myapp.wsgi script is:

import os, sys
eggcache = '/var/www/vhosts/eggcache'
sys.path.append('/home/ruben/myapp')
os.environ['PYTHON_EGG_CACHE'] = eggcache
from paste.deploy import loadapp
application = loadapp('config:/home/ruben/myapp/development.ini')

The apache process has write access in the eggcache directory
If set debug = false in the development .ini

The setup works perfectly on my development machine

Any help how to debug
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Re: modwsgi + Pylons gives segmentation fault

2009-02-24 Thread Chris Miles

On 24/02/2009, at 9:37 PM, cropr wrote:


 I am trying to setup mod_wsgi + Pylons on my deployment server (a
 CentOS 5.2 machine), but I get this error message in the apache log
 files

 [Tue Feb 24 11:24:32 2009] [notice] child pid 12226 exit signal
 Segmentation fault (11)

 a standard wsgi test programs works fine.

I had to disable mod_cache to avoid a clash between it and sqlite  
causing Apache to segfault. You may want to try this first to make  
sure you aren't being hit by the same problem.

Refs:
  http://www.mail-archive.com/sqlite-us...@sqlite.org/msg34866.html
  http://oss.itsystementwicklung.de/trac/pysqlite/ticket/146

Cheers,
Chris


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Re: modwsgi + Pylons gives segmentation fault

2009-02-24 Thread Graham Dumpleton



On Feb 24, 9:37 pm, cropr ruben.dec...@gmail.com wrote:
 I am trying to setup mod_wsgi + Pylons on my deployment server (a
 CentOS 5.2 machine), but I get this error message in the apache log
 files

 [Tue Feb 24 11:24:32 2009] [notice] child pid 12226 exit signal
 Segmentation fault (11)

 a standard wsgi test programs works fine.

 The myapp.wsgi script is:

 import os, sys
 eggcache = '/var/www/vhosts/eggcache'
 sys.path.append('/home/ruben/myapp')
 os.environ['PYTHON_EGG_CACHE'] = eggcache
 from paste.deploy import loadapp
 application = loadapp('config:/home/ruben/myapp/development.ini')

 The apache process has write access in the eggcache directory
 If set debug = false in the development .ini

 The setup works perfectly on my development machine

 Any help how to debug

Have you read the documentation, in particular the sections which talk
about circumstances where crashes can occur.

  http://code.google.com/p/modwsgi/wiki/InstallationIssues
  http://code.google.com/p/modwsgi/wiki/ApplicationIssues

Because you do not say which version of Python you are using, harder
to make a guess at what the issue may be.

Normally the problem is going to be a mismatch in shared library
versions used by Apache, PHP or some other Apache module and what a
Python module uses. In some cases the problem can be because of third
party Python modules not designed to run in sub interpreters. Not
knowing what your application does and what major Python modules/
packages it uses, again makes it harder to guess.

Graham
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