Instance termination due to ORA-07445 [ktstdt()+864] and ORA-07445 [ktstrcu()+2757]
(Doc ID 2080772.1)
Last updated on AUGUST 25, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.4 and laterOracle Database Cloud Schema 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
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
The alert log reports an error like:
ORA-07445: exception encountered: core dump [ktstdt()+864] [SIGSEGV] [ADDR:0x2B523163A040] [PC:0xFE8BD4] [Invalid permissions for mapped object] []
Note that above error may be followed by another ORA-7445, e.g.:
ORA-07445: exception encountered: core dump [ktstrcu()+2757] [SIGSEGV] [ADDR:0x2B523163A040] [PC:0x5A28111] [Address not mapped to object] []
The trace file contains no current SQL:
----- SQL Statement (None) -----
Current SQL information unavailable - no cursor.
Current SQL information unavailable - no cursor.
The call stack from the trace file includes functions like:
... ktstdt kssdel kssdch ksuxds ksudel kkjsexe kkjrdp opirip opidrv ...
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |