Ticket #20537: 20537.2.patch

wp-includes/cron.php

@@ -256 +256 @@
  * @return null When doesn't need to run Cron.
  */
 function wp_cron() {
+        global $current_blog;
 
         // Prevent infinite loops caused by lack of wp-cron.php
         if ( strpos($_SERVER['REQUEST_URI'], '/wp-cron.php') !== false || ( defined('DISABLE_WP_CRON') && DISABLE_WP_CRON ) )
@@ -264 +265 @@
         if ( false === $crons = _get_cron_array() )
                 return;
 
+        // Don't process cron for suspended blogs. 
+        if ( is_multisite() && ( $current_blog->archived || $current_blog->spam || $current_blog->deleted ) )
+                return;
+
         $local_time = microtime( true );
         $keys = array_keys( $crons );
         if ( isset($keys[0]) && $keys[0] > $local_time )