Select from x$ksmmem View Fails with ORA-07445 [qerfxGCol] Errors after Upgrading to 12c
(Doc ID 2161005.1)
Last updated on FEBRUARY 15, 2019
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
The alert log and the incident trace file report the following error:
The current sql in the trace file shows a simple Query involving x$ksmmem:
The failing functions and the call stack in the trace file shows functions like:
The database has been upgraded to 12c
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