Tag Archives: semaphore

wp-cache and sem_get issue: How to fix it

Posted on May 25, 2010 by Ehsan

I had my wp-cache disabled for a long time but when I reactivated it today I saw a PHP warning showing up: Warning: sem_get() [function.sem-get]: failed for key 0x152b: Permission denied in ……/wp-content/plugins/wp-cache/wp-cache-phase2.php on line 98 To fix this problem, … Continue reading →