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ORA-07445: [Proa_init()+9744] [Sigsegv] PMON Terminates Instance (Doc ID 755599.1)

Last updated on SEPTEMBER 23, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 10.2.0.5 [Release 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - 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 01-Nov-2011

Symptoms

The following errors were received in the alert log:

ORA-07445: exception encountered: core dump [proa_init()+9744] [SIGSEGV]
[Address not mapped to object] [0x000000708] [] []

ORA-07445: exception encountered: core dump [_aio_free_stack_unlocked()+76]
[SIGBUS] [Object specific hardware error] [0xFFFFFFFF78002000] [] []

ORA-00481: LMON process terminated with error

PMON: terminating instance due to error 481
Instance terminated by PMON, pid = 2584

Cause

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In this Document
Symptoms
Cause
Solution

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