ORA-07445: [kksHeapFreeCbk()+36] [SIGSEGV] During Shutdown
(Doc ID 2422057.1)
Last updated on JUNE 30, 2021
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.1 to 12.1.0.1 [Release 11.2 to 12.1]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.
Symptoms
ORA-07445 [kksHeapFreeCbk()+36] [SIGSEGV] has occurred at a final step of shutdown as seen in the alertlog:
:
Shutting down instance (immediate)
Stopping background process SMCO
Shutting down instance: further logons disabled
Stopping background process QMNC
:
ALTER DATABASE CLOSE NORMAL
:
Completed: ALTER DATABASE CLOSE NORMAL
ALTER DATABASE DISMOUNT
:
Completed: ALTER DATABASE DISMOUNT
:
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x0] [PC:0x105709284, kksHeapFreeCbk()+36] [flags: 0x0, count: 1]
:
ORA-07445: exception encountered: core dump [kksHeapFreeCbk()+36] [SIGSEGV] [ADDR:0x0] [PC:0x105709284] [Address not mapped to object] []
Shutting down instance (immediate)
Stopping background process SMCO
Shutting down instance: further logons disabled
Stopping background process QMNC
:
ALTER DATABASE CLOSE NORMAL
:
Completed: ALTER DATABASE CLOSE NORMAL
ALTER DATABASE DISMOUNT
:
Completed: ALTER DATABASE DISMOUNT
:
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x0] [PC:0x105709284, kksHeapFreeCbk()+36] [flags: 0x0, count: 1]
:
ORA-07445: exception encountered: core dump [kksHeapFreeCbk()+36] [SIGSEGV] [ADDR:0x0] [PC:0x105709284] [Address not mapped to object] []
Stack trace output will be similar to the following:
ksedst <- dbkedDefDump <- ssexhd <- sighndlr <- call_user_handler <- sigacthandler <- kksHeapFreeCbk <- kghfrunp <- kghfsh_helper <- kghfsh <- ksmshu <- opistp_real <- opistp <- opiodr <- ttcpip
<- opitsk <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main <- start
<- opitsk <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main <- start
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |