I use django-1.1 and satchmo (commit: 1385 75a2ea838067)
I found that if there is a "love" speech in the slug item, for example, love-x10, dsfdsfloveddd, love-love ... the product's url is "http://example.com/product/lovelove/", if you click "add to cart" button, the server give me a Blank Page, Empty! And the server is temporarily unable to provide services. What a strange situation. If you do not believe that you can personally try to it.