ORA-07445 Errors Seen in Alert log with Various First Arguments Using Database Links between 11.2.0.4/12.1.0.1 and Earlier Versions

(Doc ID 2007574.1)

Last updated on SEPTEMBER 25, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]
Information in this document applies to any platform.

Alert log contains one or more ORA-07445 errors with [ kkegbyBasic] / [qsmmixGetIdxKeyStats] / [qsmmixGenFakeIdxStats] / [k2udio] / [ddfdsii] / [kghalp] / [pfrdglob] as the first Module.
For example:
Database connected to another database via a dblink
Database links are in use between different Oracle versions
One of the databases involved is at version 11.2.0.4 or 12.1.0.1
At least one other database involved is at version 11.2.0.3 or lower

created a dblink to another database

upgraded / patched one of the databases connected via a dblink

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