Atomic 64-bit reads from mmap-ed memory on armel...

[Stéphane Glondu <glondu@debian.org>]

Hi all,

While investigating OCaml 5.2.0 build failure on armel, I realized that 
atomic 64-bit reads from mmap-ed memory on armel results in a segfault.

See:

  https://github.com/ocaml/ocaml/issues/13234#issuecomment-2176079951

for a minimal example.

Is this behaviour known? Is there a will to fix it?

A contributor suggests a problem in gcc (libatomic) and/or the kernel.


Cheers,

--
Stéphane