A method and apparatus for efficiently posting entries to a queue within the data processing system. Entries are posted by first processor with the entries being handled by second processor in the data processing system. The interrupt state associated with the queue is checked by the first processor....http://www.google.ca/patents/US5966547?utm_source=gb-gplus-sharePatent US5966547 - System for fast posting to shared queues in multi-processor environments utilizing interrupt state checking