https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113005
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- But guess another case is on a loaded system. When building on Fedora for distro builds on all of aarch64, powerpc64le, s390x or x86_64 I see: +FAIL: libgomp.fortran/rwlock_1.f90 -O0 execution test +FAIL: libgomp.fortran/rwlock_1.f90 -O1 execution test +FAIL: libgomp.fortran/rwlock_1.f90 -O2 execution test +FAIL: libgomp.fortran/rwlock_1.f90 -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions execution test +FAIL: libgomp.fortran/rwlock_1.f90 -O3 -g execution test +FAIL: libgomp.fortran/rwlock_1.f90 -Os execution test and in all those cases it was make -j{8,6,3,8} check. Though, for number of threads <= 8 we don't do the OMP_NUM_THREADS limiting and so it uses the defaults. Anyway, see e.g. https://kojipkgs.fedoraproject.org//work/tasks/4298/110644298/build.log and one can uudecode the make check logs from that file.