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Frequently Getting ORA-600 [kglLockOwnersListAppend-ovf] Or ORA-600 [kglLockOwnersListDelete] (Doc ID 1318902.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


ORA-600 [kglLockOwnersListAppend-ovf] error is encountered from application.

- <Patch 10126094> is already applied.
- Issue occurs regardless CURSOR_SHARING value
- SESSION_CACHED_CURSORS and PROCESSES have large values (1200 respectively 5000)
- The incident file shows the error is occurring when there are more than 65535 locks. For example:


Alternatively PMON may crash with an ORA-600 [kglLockOwnersListDelete] error when cleaning up a session, and hence crash the instance.




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