https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110773
--- Comment #5 from Sainan <sainan+gcc.bugzilla at calamity dot gg> --- (In reply to Wilco from comment #4) > The atomic will also set correct struct alignment. My thinking was that maybe this is not the case (= standard library issue) since both GCC and Clang seem to be causing this issue, but manually adding alignas(16) also didn't help. > You would get a crash if you build for LSE so you get a LDADDAL instruction > and then run it on a CPU that doesn't. So try -mcpu=native and it should > work. -mcpu=native didn't fix the SIGBUS, only removed __aarch64_ldadd4_acq_rel from the stack trace. FWIW, the CPU on this system where I get the SIGBUS is Cortex-A76, which should support LSE and atomics, but it seems everytime it encounters atomics, it just throws a SIGBUS. It works fine on Snapdragon 8cx Gen 3.
