Updated ruby packages that fix a bug are now available for Red Hat Enterprise Linux 6.
Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks.
Under some circumstances on the PowerPC 64 architecture, Ruby did not save the context correctly before switching threads. Consequently, when a thread was restored, it had stale context whose use would result in a segmentation fault. This affected nearly any thread-using program on PowerPC 64. With this update, the underlying source code has been modified to address this issue, and the context is now saved correctly.
All PowerPC 64 ruby users are advised to upgrade to these updated packages, which resolve this issue.