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ORA-07445[kghpir] Error Raised When SGA is Undersized (Doc ID 857190.1)

Last updated on AUGUST 29, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.
This problem can occur on any platform.


Customer receives sporadic ORA-7445 [kghpir] errors during query execution. 
Customer also has a small-sized SGA.

The following error is seen in the alert log:
    ORA-07445: exception encountered: core dump [kghpir()+#] [SIGSEGV]
                           [Address not mapped to object] [0x##] [] []

The call stack can look like this:
    kghpir kxsGetRuntimeLock kksfbc opiexe opiodr rpidrus skgmstack rpidru rpiswu2 rpidrv rpiexe ...

The following memory-related error may accompany this issue in the alert log:
    ORA-04031: unable to allocate ## bytes of shared memory (..)


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