RHEL 6.3 shipped a new version of trace-cmd, causing dep failures.. Update to newer version
trace-gui-1.0.5-1.el6 has been submitted as an update for Fedora EPEL 6. https://admin.fedoraproject.org/updates/trace-gui-1.0.5-1.el6
Package trace-gui-1.0.5-1.el6: * should fix your issue, * was pushed to the Fedora EPEL 6 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=epel-testing trace-gui-1.0.5-1.el6' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-EPEL-2012-6765/trace-gui-1.0.5-1.el6 then log in and leave karma (feedback).
trace-gui-1.0.5-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.