Today it seems to be working (on RasPi3). source.squeak.org/inbox FFI-Tests-KenD.12 tests green. Squeak5.2-18231-64bit.image (18229 updated) source.squeak.org/FFI FFI-Pools-TorstenBergmann.4 FFI-Kernel-eem.56 FFI-Unix-mtf.4 FYI, -KenD