Record Gate 2D ARM validation

migration/phase2/Gate2D_ARM_validation_20260518_1623.md

@@ -0,0 +1,71 @@
+# Gate 2D ARM Validation
+
+Date: 2026-05-18 16:23 PDT
+Host: zerodev1
+Platform: Debian Trixie, aarch64
+Python: 3.13.5
+
+## Build
+
+```bash
+cd /usr/local/src/ble-reticulum/migration/protocol_core
+date
+time python3 setup.py build_ext --inplace
+
+Result:
+
+Mon May 18 16:20:58 PDT 2026
+running build_ext
+copying build/lib.linux-aarch64-cpython-313/ble_protocol_core_cpp.cpython-313-aarch64-linux-gnu.so ->
+
+real    0m2.266s
+user    0m1.887s
+sys     0m0.185s
+Gate 2D test
+cd /usr/local/src/ble-reticulum
+date
+PYTHONPATH=migration/protocol_core pytest -q \
+  migration/tests/test_ble_peer_session_manager_python_equivalence.py
+
+Result:
+
+11 passed, 1 skipped in 0.99s
+Gate 2C and 2D regression
+PYTHONPATH=migration/protocol_core pytest -q \
+  migration/tests/test_ble_peer_session_manager_pybind.py \
+  migration/tests/test_ble_peer_session_manager_python_equivalence.py
+
+Result:
+
+23 passed, 1 skipped in 0.73s
+Backend shim regression
+pytest -q migration/tests/test_fragmentation_backend_shim.py
+
+Result:
+
+9 passed in 5.22s
+Migration regression set
+PYTHONPATH=migration/protocol_core pytest -q \
+  migration/tests/test_fragmentation_cpp_equivalence.py \
+  migration/tests/test_identity_helpers_cpp_equivalence.py \
+  migration/tests/test_ble_peer_session_manager_pybind.py \
+  migration/tests/test_ble_peer_session_manager_python_equivalence.py
+
+Result:
+
+71 passed, 2 skipped in 1.72s
+Warning check
+PYTHONPATH=migration/protocol_core pytest -q \
+  migration/tests/test_ble_peer_session_manager_python_equivalence.py \
+  -W always
+
+PYTHONPATH=migration/protocol_core pytest -q \
+  migration/tests/test_ble_peer_session_manager_python_equivalence.py \
+  -rw
+
+Result:
+
+11 passed, 1 skipped in 0.62s
+11 passed, 1 skipped in 0.62s
+
+No warnings were printed on zerodev1. Earlier Codex report mentioned 2 warnings, but they were not reproducible in this ARM validation run.