How do I call the menu_rebuild function in Drupal 7?
Drupal 7

If you're using drush, you may run:

drush eval 'menu_rebuild();'


If won't work, see: How to do menu rebuild when having PHP Fatal error?

Drupal 6

drush php-eval 'drupal_rebuild_theme_registry()'


memcached

If you're using memcached, you've to restart it.

On Linux: /etc/init.d/memcached restart

On OS X (if using Homebrew): brew services restart memcached