diff -up xcache-3.1.0/xcache.ini.old xcache-3.1.0/xcache.ini
--- xcache-3.1.0/xcache.ini.old	2014-01-09 10:45:55.139937807 +0100
+++ xcache-3.1.0/xcache.ini	2014-01-09 10:47:44.972289458 +0100
@@ -66,7 +66,9 @@ xcache.disable_on_crash =    Off
 xcache.experimental =        Off
 
 ; per request settings. can ini_set, .htaccess etc
-xcache.cacher =               On
+; WARNING set xcache.cacher=On only when no other cache installed
+; Will create conflicts with php-opcache or php-pecl-zendopcache
+xcache.cacher =              Off
 xcache.stat   =               On
 xcache.optimizer =           Off