My Oracle Support Banner

AIX: 18c/19c Installed successfully ,but sqlplus,lsnrctl fails with "Illegal Instruction" (Doc ID 2621030.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


18c/19c Database/Client on AIX Installed successfully.

But when executing the oracle utilities like: sqlplus,lsnrctl,expdp etc ,it fails with error:Illegal instruction

This issue on Power 6 machine.

Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER


Illegal instruction


Illegal instruction


stack trace shows:

dbx -r sqlplus

Entering debugger ...
Type 'help' for help.
reading symbolic information ...warning: no source compiled with -g

Illegal instruction in sslnxadd at 0x90000003547ac90
Instruction is valid on:
0x90000003547ac90 (sslnxadd+0x170) 7c004e99 Invalid opcode.
(dbx) quit






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

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