1. A method for filtering duplicate requests from an L 1 cache for a cache line, comprising: receiving at an L 2 cache a first request and a second request for the cache line; storing identifying information for the requests; loading the cache line into a fill buffer while creating a first load fill packet for the first request; sending the first load fill packet to the L 1 cache; and after sending the first load fill packet, using the fill buffer and the stored identifying information to send a subsequent load fill packet for the second request to the L 1 cache.