I have 2 rhel 6 x86_64 systems that SHOULD be identical. One of them is having issues running sqlplus, which immediately results in a segmentation or memory fault. I have read through numerous threads with troubleshooting procedures and some resolutions, but found nothing that fixes my issue. I have done an RPM comparison between the 2 and have tried to compare all files under ORACLE_HOME as well, I just can't seem to find the culprit. I copied the entire ORACLE_HOME from the good server and it still fails even after a relink all. What else should I check?