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Fatal allowed memory error on Wordpress MU WordPress

I am getting this error when logging into the backend of my Wordpress MU installation:

Fatal error: Allowed memory size of 268435456 bytes exhausted

I am also getting blank admin dashboard with I love into:
http://oversimplification.mvmt.com/wp-admin/

I submitted a request to my hosting provider PSEK and got this response.

It didn't work. The problem still is there.

----

Hi Rolando,

we've added following line to your public .htaccess file:

php_value memory_limit 512M

This should fix the issue, please try accessing the site now.

Please note that exceeding allowed memory size could indicate a memory leak or some other issue that require an experienced web-developer to have a look.

Scripts which hit PHP memory limit could overload the server - in this case we will disable the script or whole account.

Please let us know if you have any further questions or concerns.

-----

This has however not fixed my problem.

Can any of you help?

Username & Password to see error:

http://oversimplification.mvmt.com/wp-admin/
un: psek
pw: helpdesk

Answers (6)

2011-12-30

Maor Barazany answers:

It might be one of your plugins causing this, or your tempalte.
Try to remove plugins from the wp-plugins folder (this will auto-deactivate them, if you don't have access to admin panel)
Then check one by one who causes this.

2011-12-30

Luis Abarca answers:

I log in and looks ok, maybe the changes takes some time or you need to refresh your browser cache

2011-12-31

Julio Potier answers:

Hello

The "php_value memory_limit 512M" do not fixed the problem BUT it bypass it ... (refresh your browser) but i suggest your to remove this line, get the error again and find the real problem.

See you !

2012-01-01

Chris Bunting answers:

Wordpress assigns the php_memory limit internally. You can try setting a higher limit to see if that helps. MU and resources intensive plugins are what usually cause this.

Open the file /wp-includes/default-constants.php at the top you'll see,


function wp_initial_constants( ) {
global $blog_id;

// set memory limits
if ( !defined('WP_MEMORY_LIMIT') ) {
if( is_multisite() ) {
define('WP_MEMORY_LIMIT', '64M');
} else {
define('WP_MEMORY_LIMIT', '32M');
}
}

if ( ! defined( 'WP_MAX_MEMORY_LIMIT' ) ) {
define( 'WP_MAX_MEMORY_LIMIT', '256M' );
}


Change the line below, 64M to 128M or 256M

if( is_multisite() ) {
define('WP_MEMORY_LIMIT', '64M');


And see if that fixes the problem.

Chris

2012-01-03

Manoj Raj answers:

Try Deactivating "MailChimp Archives" plugin and check for the error.

2012-01-03

Patrick Leisegang answers:

define('WP_MEMORY_LIMIT', '512M');


add that line into your wp-config.php file. it shoud make it work...

i DO NOT recommend altering core files. this will break on next update you make!