https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78584 --- Comment #4 from DJ Delorie <dj at redhat dot com> --- kernel-4.8.6-201.fc24.x86_64 glibc-2.23.1-11.fc24.x86_64 but I'm also working on a libiberty patch to detect the case and avoid it.