WordPress MU

Upgraded to WP MY 2.9

Getting frequent white screens on all blogs> Runs fine for an hour, then white screen....then sometimes only holds up a few minutes. No load issues, definitely appears upgrade or cache related.

Errors being reported are below

IF anyone avaialable for emergency server admin please feel free to respond.

Thanks

[30-May-2010 16:58:55] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 17:15:32] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 18:23:42] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 18:23:55] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 18:35:04] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 18:40:24] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:00:35] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:00:40] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:00:40] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:03:32] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:04:36] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:10:00] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:12:31] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93
[30-May-2010 19:14:32] PHP Fatal error: Call to a member function get() on a non-object in /home/fire3esb/public_html/wp-includes/cache.php on line 93

Well,

I don't know about your log information - however I had a similar problem (although on a regular single WP install) where I was getting white screen randomly from time to time. After few research I did discover that it was a problem related to internal PHP.INI configuration caused BY THE WEB SERVICE itself. They (the company) did allocate my files on a poor server (maybe) and definely the memory usage configurated for PHP was the minumum. Any hard operation on the WP admin was giving me white screens, specially the actions image related (upload of large images and thumbnail creations).

Regards,
Cospefogo.

Are you running any sort of cache?

+1 for a bump up in the allocated php memory though. The readme has more information about this.

Thank you for including your log information.