Background Process is Killed with ORA-00028 and Instance is Terminated

(Doc ID 1349496.1)

Last updated on SEPTEMBER 02, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 10.2.0.4 [Release 10.2]
Information in this document applies to any platform.

Symptoms

DBW1 was killed and the instance was terminated , the following messages were found in the alert log.
Note that a similar issue could happen for other background processes.

Mon Aug 8 09:43:57 2011
Errors in file /oracle/admin/rac/bdump/rac2_dbw1_13849.trc
ORA-00028: your session has been killed
Mon Aug 8 09:43:57 2011
Errors in file /oracle/admin/rac/bdump/rac2_lms0_13824.trc:
ORA-00028: your session has been killed
...
Mon Aug 8 09:43:57 2011
DBW1: terminating instance due to error 28

Cause

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