Programs using the sched_getattr (or sched_setattr) syscall produce errors under valgrind. Upstream proposed patch: https://bugs.kde.org/show_bug.cgi?id=369029
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (new packages: devtoolset-10-valgrind), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2020:5287