No multiple requests to the same block outstanding from the same tester
Using false sharing, each tester only access a single byte within the block based on which tester it is
Allow more cycles before signalling deadlock, with do_events it may take some time with NACK/retry and many proccessors
--HG--
extra : convert_revision : 4c8eab99082c53840a5ad2a926457dfc27f23b77