title: mysql crashes when alter table
body: <p>I am using mysql version 6.1.4 and windows 7</p>
  
  <p>I have an empty table where I want to drop a column and a foreign key. When I try to apply the changes the workbench crashes and when I try to stop Mysql it returns a error</p>
  
  <pre><code>ERROR 2013: Lost connection to MySQL server during query
  SQL Statement:
  ALTER TABLE `teste_db`.`search_products` 
  DROP FOREIGN KEY `product_id_id_refs_id_aa2f4dab`   
  
  ERROR: Error when running failback script. Details follow.
  
  ERROR 2006: MySQL server has gone away
  </code></pre>
  
  <p>I have looked around a lot and could not find any clue...</p>
  
  <p>Thanks in advance for any help!</p>