ORA-7445 kssrem and ORA-7445 kggchk leading to PMON crash
(Doc ID 419386.1)
Last updated on JANUARY 29, 2022
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.4 to 10.2.0.3 [Release 10.1 to 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Memory heap error ORA-7445 [kssrem] and ORA-7445 [kggchk] is reported in the alert.log and PMON terminates.
In some cases ORA-600 [KGHFRE3] is also seen.
not mapped to object] [0x000000008]  
ORA-07445: exception encountered: core dump [kggchk()+52] [SIGSEGV] [Address
not mapped to object] [0x44000000020]  
MMAN: terminating instance due to error 472
ORA-00472: PMON process terminated with error
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