Strange issues with WordPress, hanging up the HTTPd

Hi there,

One of our websites are having strange issues, which can result into a HTTPd hangup (not responding sockets….).

When I look in the error_log of that website, I see the following errors (and this is just a small part of it….. its about 10k+ each day)

[Thu Oct 16 09:16:31.558729 2014] [:error] [pid 29428] [client xxx.xxx.xxx.xxx:64306] PHP Fatal error:  Cannot redeclare timer_stop() (previously declared in \xc0p\x16\x01:230) in /home/user/domains/domain.nl/public_html/wp-includes/load.php on line 238, referer: https://www.domain.nl/
[Thu Oct 16 09:19:59.391241 2014] [:error] [pid 29121] [client xxx.xxx.xxx.xxx:61374] PHP Fatal error:  Cannot redeclare timer_stop() (previously declared in f:0) in /home/user/user/domain.nl/public_html/wp-includes/load.php on line 238, referer: https://www.domain.nl/
[Thu Oct 16 09:26:38.877501 2014] [:error] [pid 29713] [client xxx.xxx.xxx.xxx:57646] PHP Fatal error:  Cannot redeclare timer_stop() (previously declared in \xc0p\x16\x01:230) in /home/user/domains/domain.nl/public_html/wp-includes/load.php on line 238, referer: https://www.domain.nl/sample-page.html
[Thu Oct 16 09:27:35.862409 2014] [:error] [pid 29830] [client xxx.xxx.xxx.xxx:62008] PHP Fatal error:  Cannot redeclare wp_get_post_parent_id() (previously declared in \xe81\xa9\x01:2) in /home/user/domains/domain.nl/public_html/wp-includes/post.php on line 5700, referer: https://www.domain.nl/sample-page.html
[Thu Oct 16 09:36:25.807304 2014] [:error] [pid 30114] [client xxx.xxx.xxx.xxx:4340] PHP Fatal error:  Cannot redeclare timer_stop() (previously declared in \xc0p\x16\x01:230) in /home/user/domains/domain.nl/public_html/wp-includes/load.php on line 238, referer: https://www.domain.nl/

Now I see that the function timer_stop() cannot be redeclared again, but…. The part where it was previously declared is something binairy according to the log.

Does anyone have a clue what causes this issue?

Best regards,

Rick