Fix bug: PR 1298
completed by: Daniel Ramirez
mentors: Joel Sherrill
Investigate and fix https://www.rtems.org/bugzilla/show_bug.cgi?id=1298
For this bug fix, you should also create a new test case in testsuites/psxtests for the condition (time in the past).
Cross-post patches to Melange and RTEMS Bugzilla.