20904   zERR NONEXISTENT LOCK

Source:  NSS, Common Layer, Locking-Related

Explanation:  An attempt was made to release a lock that does not exist.

Possible Cause:  An attempt was made to unlock a byte range lock, and one of the following occurred:

• An incorrect start and length for the lock was specified.
• The lock had already been unlocked.
• The lock had never been set.
• The timer had expired on the lock before it was granted.

Action:  Make sure the code is releasing the correct lock.