Various data races in subinterpreter tests under TSAN

Bug report

Thread sanitizer reports a number of data races when running subinterpreter tests

InterpreterPoolMixin (test_concurrent_futures)

• run_eval_code_obj: see https://github.com/python/cpython/issues/128130
• posixmodule_exec modifies globals waitid_result_desc and stat_result_desc
• _PyBuiltins_AddExceptions: modifies globals PyExc_EnvironmentError, etc. https://github.com/python/cpython/blob/49bd47d5f14993d37b97aa2bbf257f5df16b96a9/Objects/exceptions.c#L4354-L4355
• _PyInterpreterState_FinalizeAllocatedBlocks: modifies _PyRuntime variable _PyInterpreterState_FinalizeAllocatedBlocks
• _globals_fini + clear_interpreter: data race on _globals.module_count (the read in clear_interpreter happens outside of a lock)
• init_static_exctypes: modifies globals _PyExc_InterpreterError, etc.
• _structmodule_exec: data race reported on ptr->unpack = native->unpack

I think for now it would make sense to skip the InterpreterPoolMixin tests when running with TSAN.

test__interpchannels

• find_name_in_mro and _waiting_release: I don't understand this one, but it happens during test_send_recv_different_interpreters_and_threads

test__interpreters and test_interpreters

• type_ready_set_new: https://github.com/python/cpython/blob/7b2e01bb555359913939d7ff168363f1760d3f8e/Objects/typeobject.c#L8509
• type_ready: (see https://github.com/python/cpython/issues/129817)
• File descriptor race in test_api.LowLevelTests.test_is_running and test_running: close() concurrent with read() on the same file descriptor.
• managed_static_type_state_init in test.test_interpreters.test_stress.StressTests.test_create_many_threaded: data race on the non-atomic read of interp_count.
• pegen memo_statistics mutex is currently only used in free threading build (seen in test_create_many_threaded)
• version tags on static types: NEXT_GLOBAL_VERSION_TAG, type->tp_versions_used, and tp->tp_version_tag modifications are not thread-safe (seen in test_create_many_threaded)

test_capi.test_misc.assign_version_tag

• race on NEXT_GLOBAL_VERSION_TAG in assign_version_tag (see above)

Linked PRs

• gh-129826
• gh-129829
• gh-135794
• gh-136266
• gh-143446
• gh-143530

Bắt đầu với các race chưa được kiểm tra trong test_concurrent_futures, test__interpchannels và test__interpreters, sau đó đọc các vị trí được liên kết trong Modules/posixmodule.c, Objects/typeobject.c, Modules/_interpchannelsmodule.c và Modules/_struct.c. Chạy các bài kiểm thử subinterpreter bị ảnh hưởng dưới TSAN; được xem là hoàn tất khi mỗi race được báo cáo đều có cách giải quyết đã được review hoặc trạng thái xử lý được ghi lại, đồng thời đã xem xét các PR được liên kết.