Yesterday evening I decided to set up a cron job for automatic backups on my VPS a full MySQL dump and a compressed archive of the www directory. So I got a couple of error messages stating that I don't have the right to access some files which were in the wp-content upload and wp-content cache folders. Setting 0777 as the rights for the cache directory and two WP-Super Cache config files solved the problem. After another reboot I managed to quickly get into the WordPress control panel enable Maintenance Mode and disable all the other plugins. Now the static files were owned by. kovshenin. and. webmaster. apache didn't have any rights for those files. WP-Super Cache must have been in an infinite loop trying to access those and of course with no luck therefore memory leak.
Read more