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Instance Critical Process SA00 died - RAC Instance Crashes After PSU apply (Doc ID 2171150.1)

Last updated on OCTOBER 03, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud 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
Information in this document applies to any platform.


After patching RAC Grid and Database with April PSU one instance repeatedly crashes with errors similar with below ones:

Wed Aug 03 16:48:33 2016
Warning: VKTM detected a time drift.
Time drifts can result in an unexpected behavior such as time-outs. Please check trace file for more details.
Wed Aug 03 16:48:44 2016
Instance Critical Process (pid: 7, ospid: 45528, SA00) died unexpectedly           ----------------------------> SA00 process died..
Wed Aug 03 16:48:44 2016
System state dump requested by (instance=2, osid=45516 (PMON)), summary=[abnormal instance termination].
System State dumped to trace file /<diagnostic_dest>/diag/rdbms/<dbname>/<instname>/trace/<sid>_diag_45530_20160803164844.trc
Wed Aug 03 16:48:44 2016
PMON (ospid: 45516): terminating the instance due to error 12752


 April PSU was applied on Grid and Database.


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