https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119210
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to xiezhiheng from comment #5) > And I am using kernel 5.10 (5.10.0-216.0.0.115.oe2203sp4.aarch64 openEuler > 22.03 (LTS-SP4)) I don't think SME support was added until 5.19 but I could be wrong.