Skip to content

Python 3.15.0~b1, test_frame_pointer_unwind fails on riscv64 #150919

Description

@davidlt

Bug report

Bug description:

While compiling python3.15-3.15.0~b1-1.fc44.src.rpm for riscv64 on Fedora 44 we noticed test_frame_pointer_unwind failing.

[..]
1 test failed:
    test_frame_pointer_unwind
475 tests OK.
1:03:08 load avg: 1.27 Re-running 1 failed tests in verbose mode in subprocesses
1:03:08 load avg: 1.27 Run 1 test in parallel using 1 worker process (timeout: 2 hour 15 min, worker timeout: 2 hour 20 min)
1:03:12 load avg: 1.25 [1/1/1] test_frame_pointer_unwind failed (1 failure)
Re-running test_frame_pointer_unwind in verbose mode (matching: test_manual_unwind_respects_frame_pointers)
test_manual_unwind_respects_frame_pointers (test.test_frame_pointer_unwind.FramePointerUnwindTests.test_manual_unwind_respects_frame_pointers) ... #00 0x8000000000000000 -> other
{"length": 1, "python_frames": 0, "jit_frames": 0, "other_frames": 1, "jit_backend": null, "unwinder": "manual_frame_pointer_unwind"}
  test_manual_unwind_respects_frame_pointers (test.test_frame_pointer_unwind.FramePointerUnwindTests.test_manual_unwind_respects_frame_pointers) (env={'PYTHON_JIT': '0'}) ... FAIL
======================================================================
FAIL: test_manual_unwind_respects_frame_pointers (test.test_frame_pointer_unwind.FramePointerUnwindTests.test_manual_unwind_respects_frame_pointers) (env={'PYTHON_JIT': '0'})
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/python3.15-3.15.0_b1-build/Python-3.15.0b1/Lib/test/test_frame_pointer_unwind.py", line 257, in test_manual_unwind_respects_frame_pointers
    self.assertGreaterEqual(
    ~~~~~~~~~~~~~~~~~~~~~~~^
        python_frames,
        ^^^^^^^^^^^^^^
        STACK_DEPTH,
        ^^^^^^^^^^^^
        f"expected to find Python frames on {self.machine} with env {env}",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
AssertionError: 0 not greater than or equal to 10 : expected to find Python frames on riscv64 with env {'PYTHON_JIT': '0'}
----------------------------------------------------------------------
Ran 1 test in 1.398s
FAILED (failures=1)
test test_frame_pointer_unwind failed
[..]

Full build log is available here: https://riscv-kojipkgs.fedoraproject.org//work/tasks/2456/222456/build.log

More details in the build task (if needed): https://riscv-koji.fedoraproject.org/koji/taskinfo?taskID=222456

I very briefly asking Gemini 3.5 Flash to look at it, and it said that Modules/_testinternalcapi.c needs proper values for FRAME_POINTER_NEXT_OFFSET and FRAME_POINTER_RETURN_OFFSET set on riscv64. I haven't deeply looked at it. Just adding it as a potential hint.

CPython versions tested on:

3.15

Operating systems tested on:

Linux

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    testsTests in the Lib/test dirtype-bugAn unexpected behavior, bug, or error

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions