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ORA-07445 [kghsrch] Associated With Session Kills (Doc ID 787914.1)

Last updated on MARCH 19, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

After killing of application sessions, the RDBMS started to generate ORA-07445 errors and
then terminated both ASM and database instances. The alert log shows:

ORA-07445: exception encountered: core dump [kghsrch()+64] [SIGSEGV] [Address not mapped to
object] [0xFFFFFFFFFFF0] [] []
ORA-07445: exception encountered: core dump [kgscDump()+232] [SIGSEGV] [Address not mapped to object] [0x000000010] [] []
ORA-07445: exception encountered: core dump [kghsrch()+64] [SIGSEGV] [Address not mapped to
object] [0xFFFFFFFFFFF0] [] []

The call stack from the trace file will be similar to the following:

kghsrch <- kghfnd <- kghalo <- ksp_param_handle_alloc <- kspcrec <- loc <- ksucre <- kxfpqidqr <- kxfprdp <- opirip <- opidrv <- sou2o <- opimai_real <- main

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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