apache segfault(11)

Monday 17 July 2006 8:48:04 am

On a new webserver installing ezpublish 3.8.1 and following the installationscript and changing the accessright according to the set up script I get a apache segfault(11).

This works:
drwxrwxr-x 2 www-data www-data 4096 2006-06-17 14:54 ini
drwxrwxrwx 3 nobody nogroup 4096 2006-06-17 14:21 packages

But if I change this to
drwxrwxr-x 2 nobody nogroup 4096 2006-06-17 14:54 ini
drwxrwxrwx 3 nobody nogroup 4096 2006-06-17 14:21 packages

I got the segfault.

I did run modfix.sh and it is apache 1.3 and php 4.4 on a ubuntu server.

How can I debug this error and more important how can I solve this.

Cheers.

Hapee

Tuesday 18 July 2006 2:00:07 am

Thanks Egil,

I did de memtest and no errors whatsoever, anybody else a suggestion, because the error remains.

I ran some more tests: I installed 3.7.6 without problem and it is working great, so I did a test with 3.8.1 again, the install script says:

The affected directories are: var/cache/ini
These shell commands will give proper permission to the webserver.

cd /var/www/demeter.hivos.nl
chmod -R ug+rwx var/cache/ini
chown -R nobody:nogroup var/cache/ini

Alternative shell commands

If you don't have permissions to change the ownership you can try these commands.

cd /var/www/demeter.hivos.nl
chmod -R a+rwx var/cache/ini

Whatever I change to var/cache/ini, whether I change the user, the group or the write permissions it is wrong and I get the segfault (11).

Should I file a bug? I will try 3.8.0 later today.

Hapee

Wednesday 19 July 2006 8:07:48 pm

Hi

Let my try to help again. I'm not a Ubuntu expert and I'm not 100% updated on what user Apache run with as standard in Ubuntu, but I found something strange in your configuration.

In your first post you write: <i>On a new webserver installing ezpublish 3.8.1 and following the installationscript and changing the accessright according to the set up script </i>

I guess the access rights settings you refer to is the one form the output of modfix.sh:

*** WARNING WARNING WARNING WARNING ***
This script sets 777 as permissions in var/
THIS IS NOT SECURE!
Find the user and group for your web server and make them owner of all files in var/
You should be able to find this information in the configuration file for your web server.

For example:
If your web server user is apache and the group is apache, then run the following commands:
# chown -R apache.apache var/
# chmod -R 770 var/

As far as I can see from Ubuntu forums the Apche user and group is www-data:www-data and not nobody:nogroup, isn't that correct for your installation as well ?

If your Apache user and group is www-data:www-data, your should run this commands to get correct access according to modfix.sh

cd /var/www/demeter.hivos.nl
chown -R www-data:www-data var/
chmod -R 770 var/

I'm sorry if I miss understood something, but as fare as I can understand based on Ubuntu forums and the output of modfix.sh your have wrong owner of your var folder.

I also get segfault from my Apache with eZ publish 3.8.0 if I remove the apache user's right to write data in var/cache/ini. For me this seems to be logical since eZ publish will try to write data cache files that he don't have access to write.

Best regards
Egil Fujikawa Nes

BuildCMS - Av. Paulista 777, 15° Andar - CEP: 01311-100 - São Paulo
URL: http://www.buildcms.com

Sunday 23 July 2006 5:59:20 am

EZ Publish 3.8 works very well with Ubuntu. Are you using any PHP accelerators/caches?

Does the apache error logs give any more information other than segfault?

Tuesday 25 July 2006 12:28:22 pm

Thanks so far, it was not the accelerator, I use Turck MMCache but I tried without and with, no difference. I also took of apache 1.3 and installed apache 2 no difference. I will install Debian on the server again and install everything again. I hope this will lead to no segfault, if so you will find me here.

Hapee