PMON (ospid: xxxxx): terminating the instance due to ORA error 12752 with ORA 03113: end-of-file on communication channel (Doc ID 3062849.1)

Last updated on DECEMBER 15, 2024

Applies to:

Symptoms

Problem Description
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PMON (ospid: xxxxx): terminating the instance due to ORA error 12752

Problem Summary
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- Clusterware up and running on all nodes in the cluster but unable to start database instance.

- PMON Terminating the instance due to ORA error 12752.

- User process terminated with end of file communication with ORA 03113.

2024-11-27T01:28:46.709313+05:45
PMON (ospid: xxxxx): terminating the instance due to ORA error 12752
2024-11-27T01:28:46.709556+05:45
Cause - 'Instance is being terminated due to fatal process death (pid: xxx, ospid: xxxxx, )'
2024-11-27T01:28:46.728199+05:45
System State dumped to trace file /u01/app/oracle/diag/rdbms/xxx/xxx/trace/xxxx_diag_xxxx.trc
2024-11-27T01:28:47.665261+05:45
Dumping diagnostic data in directory=[cdmp_xxxxxxxxxxxxx], requested by (instance=x, osid=xxxx (PMON)), summary=[abnormal instance termination].
2024-11-27T01:28:48.917668+05:45
Instance terminated 
ERROR at line 1:
ORA 03113: end-of-file on communication channel
Process ID: 1232375
Session ID: 163 Serial number: 17835

Changes

 OS upgraded from OEL 7 to OEL 8 Node

Cause

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