32-bit Oracle client problem on RHEL-7

Why installing 32-bit client , but not 64-bit ? Answer is simple: application wants it.

That was our case. But after 32-bit Oracle client installation on RHEL-7 sqlplus command generated “Segmentation fault ( core dumped)

[server1]~$sqlplus
Segmentation fault (core dumped)

Things to control are below:

- Stack size limit for oracle user must be 10240, not default 8192. ( ulimit –sS 10240)

- There may be need to relink Oracle binaries

su - oracle

cd $ORACLE_HOME/bin

relink all > relink.txt 2>&1 (check relink.txt for errors)

- Last thing may be needed due to this doc è https://access.redhat.com/solutions/2475711

You may need to touch this file

[server1]~$ touch /etc/sysconfig/64bit_strstr_via_64bit_strstr_sse2_unaligned

Finally sqlplus must work as usual

[server1]~$sqlplus
SQL*Plus: Release 12.1.0.2.0 Production on Thu Jan 25 16:38:00 2018
Copyright (c) 1982, 2014, Oracle.  All rights reserved.
Enter user-name:
^C
[server1]~$

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