Visit Jeremy's Blog.
Go Back > Forums > Linux Forums > Linux - Server
User Name
Linux - Server This forum is for the discussion of Linux Software used in a server related context.


  Search this Thread
Old 09-08-2009, 12:06 PM   #1
LQ Newbie
Registered: Aug 2006
Location: Hillsborough, NJ
Distribution: Fedora
Posts: 7

Rep: Reputation: 0
Debugging the WhiteScreenOfDeath -- a maze of twisty little passages...

I have a Fedora 10 server that hosts a webserver who's content is managed by Drupal. Suddenly this week-end I began experiencing the dreaded WhiteScreenOfDeath

First I thought, it's something with the Drupal 6 code, but then I got the same behavior from a Bugzilla installation that co-resides there.

browsing the logs I found:
[Tue Sep 08 10:00:18 2009] [notice] child pid 10182 exit signal Segmentation fault (11)
[Tue Sep 08 10:00:32 2009] [notice] child pid 10481 exit signal Segmentation fault (11)
[Tue Sep 08 11:00:17 2009] [notice] child pid 10542 exit signal Segmentation fault (11)
[Tue Sep 08 11:00:31 2009] [notice] child pid 10536 exit signal Segmentation fault (11)
[Tue Sep 08 11:02:59 2009] [notice] child pid 10301 exit signal Segmentation fault (11)
[Tue Sep 08 11:36:30 2009] [notice] child pid 10730 exit signal Segmentation fault (11)
[Tue Sep 08 12:00:19 2009] [notice] child pid 10728 exit signal Segmentation fault (11)

corresponding to my browsing attempts...

I'm running
Loaded plugins: refresh-packagekit
fedora | 2.8 kB 00:00
updates | 3.4 kB 00:00
Installed Packages
Name : httpd
Arch : i386
Version : 2.2.11
Release : 2.fc10
Size : 2.7 M
Repo : installed
From repo : updates
Summary : Apache HTTP Server
License : ASL 2.0
Description: The Apache HTTP Server is a powerful, efficient, and extensible
: web server.

I'm hoping that you fellow netizens can help me get to the bottom of this
First question: what can I turn on to find out what is killing my httpd children.
Old 10-01-2009, 09:00 PM   #2
LQ Newbie
Registered: Aug 2009
Posts: 2

Rep: Reputation: 0
Ideas to try to figure out what exactly is dying.

Can you correlate the time in the error log with events in the other http logs?

Are there any core files laying around anywhere? (Especially anything with a date similar to the time of failure)

Can you run httpd from the command line and make its output go to stdout?

Old 10-02-2009, 01:07 PM   #3
LQ Newbie
Registered: Aug 2006
Location: Hillsborough, NJ
Distribution: Fedora
Posts: 7

Original Poster
Rep: Reputation: 0
I set up httpd to drop core files in /tmp/apachecore
but nobody showed up
I think there is a loop of some kind that I created while trying to create a calendar using feeds from event creation in another segment of the code. It feeds until it explodes...
I started over with a fresh install and I'm slowly adding the content back in from the old database using mysql
it's tricky merging the old stuff with the current database.

I don't remember trying to run httpd from the command line...I'll give that a try when I get another non-production server in place to debug this problem.


debug, fedora 10, httpd

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Effective debugging or improving ones debugging skills Ajit Gunge Programming 3 05-22-2009 10:29 AM
LXer: The new platform maze LXer Syndicated Linux News 0 08-11-2006 02:21 PM
Difference between kernel - debugging and application debugging topworld Linux - Software 2 03-30-2006 01:50 AM
Who do you think could get out of a maze faster dj_relentless General 15 03-31-2002 12:38 PM
Switchy & twisty trouble drjimstuckinwin Linux - Networking 2 01-19-2002 06:06 AM > Forums > Linux Forums > Linux - Server

All times are GMT -5. The time now is 02:40 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration