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

Last updated on SEPTEMBER 27, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

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

Completed: ALTER DATABASE MOUNT
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 /u01/app/oracle/diag/rdbms/lpomega/lpomega2/trace/lpomega2_diag_45530_20160803164844.trc
Wed Aug 03 16:48:44 2016
PMON (ospid: 45516): terminating the instance due to error 12752

Changes

 April PSU was applied on Grid and Database.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms