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Wnnn Process Encounters ORA-07445[lmebucp()+28] Repopulating In-Memory Table (Doc ID 2097783.1)

Last updated on MAY 20, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database 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.


Different problems related to in-memory table are encountered on

Symptom 1:

The Space job Wnnn process crashed while repopulating an in-memory table with an ORA-7445[lmebucp()+28] error.

The Call Stack Trace in the associated incident trace file shows:


Symptom 2:

An in-Memory query returns a wrong value on a specific column.   The wrong result can be avoided after the in-memory table is repopulated.


The DBBP (database bundle patch) or later is applied on top of


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