My Oracle Support Banner

ORA-7445 [_memcmp()+160] [SIGSEGV] No Connection Possible from Application (Doc ID 375788.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: and later   [Release: 10.2 and later ]
Information in this document applies to any platform.
***Checked for relevance on 10-Jan-2012***


ora-7445 [_memcmp()+160] [SIGSEGV] [Address not mapped to object] [0xD00000020] [] []

occurs very frequently in alert.log. No connection from application is possible. Connection from SQLPLUS is possible.

stack trace:
ksedst ksedmp ssexhd memcmp kpzgkvl kziaia kpolnb kpolon opiodr ttcpip opitsk


Migrate from 9.2 to


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.