https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103944
--- Comment #6 from Iain Buclaw <ibuclaw at gdcproject dot org> --- (In reply to Jakub Jelinek from comment #4) > Note, it isn't just i686-linux, I was getting the hangs on x86_64-linux, > s390x-linux or armv7hl-linux-gnueabi too. > Wonder whether it is > -fstack-clash-protection -fcf-protection -fcf-protection > related or perhaps glibc version dependent (in the builds where it > reproduces we are using a very recent glibc snapshot (e.g. one with > _dl_find_object in there in case the test uses unwind info in some way)). CET is turned on by default now IIRC for X86/64, so I doubt it'd be -fcf-protection.