Does SCO own read-copy-update?
Posted Jun 13, 2003 14:40 UTC (Fri) by StevenCole
Parent article: Does SCO own read-copy-update?
Read-copy-update technology is covered by US Patent 5,442,758 "Apparatus and method for achieving reduced overhead mutual exclusion and maintaining coherency in a multiprocessor system utilizing execution history and thread monitoring".
This patent lists the
Inventors: Slingwine; John D. (Beaverton, OR); McKenney; Paul E. (Beaverton, OR)
Assignee: Sequent Computer Systems, Inc. (Beaverton, OR)
Evidently, on 08/15/1999, that patent expired due to non-payment of a maintenance fee, but on 05/31/2000 a petition to accept late payment of the fee was filed, and on 06/14/2000 that petition was granted.
For additional information on this patent, go to the
USPTO Patent Full-Text and Image Database. Select Patent Number in Field 1 and enter 5442758 in Term 1.
If SCO's code is using RCU, they may be infringing on that patent.
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