MDL-8469 increase memory limit everywhere due to changed calculation of used memory in PHP 5.2.x - the real memory useage is the same, but the reported size of used memory is now more accurate

admin/cron.php

@@ -78,6 +78,9 @@
 /// no more headers and buffers
     while(@ob_end_flush());
 
+/// increase memory limit (PHP 5.2 does different calculation, we need more memory now)
+    @raise_memory_limit('128M');
+
 /// Start output log
 
     $timenow  = time();
@@ -251,7 +254,7 @@
         //Execute backup's cron
         //Perhaps a long time and memory could help in large sites
         @set_time_limit(0);
-        @raise_memory_limit("128M");
+        @raise_memory_limit("196M");
         if (function_exists('apache_child_terminate')) {
             // if we are running from Apache, give httpd a hint that 
             // it can recycle the process after it's done. Apache's