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ORA-07445 or ORA-600 Errors With a Big Stack or a Corrupted Stack (Doc ID 1318825.1)

Last updated on OCTOBER 02, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 9.0.1.0 and later
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 Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 28-Nov-2013***

Symptoms

You are experiencing ORA-7445 errors like (example):

ORA-07445: exception encountered: core dump [kghalo()+4] [SIGSEGV] [Stack Overflow] [0xFFFFFFFF7FFF1F98] [] []

or ORA-600 errors pointing to memory issues

The tracefile shows a big or possibly corrupted stack.

For example:
ssdgetcall: WARNING! *** STACK TRACE TRUNCATED ***
ssdgetcall: WARNING! *** UNREADABLE FRAME FOUND ***

Cause

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In this Document
Symptoms
Cause
Solution


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