https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113313
--- Comment #8 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- (In reply to Steve Kargl from comment #7) --- snip --- > libgfortran is supposedly thread-safe and looking into > flush_all_units() shows some unlocking and testing for > locks. With 'print *, iam('john')', there may be lock > contention. My first thought when I observed the test case execution is locks. Have not looked further yet.