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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Unrecoverable stack overflow with infinite recursion on macOS","articleBody":"# Crash report\n\n### What happened?\n\nHello,\n\nIn the CI of `cloudpickle`, we encountered a crash of the python interpreter due to a stack overflow with `python3.14.0a6`.\nReverting to `python3.14.0a5` fixes the error.\n\n\nThis might be related to [GH-130398](https://github.com/python/cpython/pull/130398), with a bad detection of the limit of the stack?\nI could not test it locally as I don't own a mac.\n\n```python\nclass A:\n    def __getattribute__(self, name):\n        return getattr(self, name)\n\n\na = A()\nprint(\"Testing Recursion Limit\")\ntry:\n    a.test\nexcept RecursionError:\n    print(\"Recursion Limit ok\")\n```\n\n[Output](https://github.com/cloudpipe/cloudpickle/actions/runs/13993198903/job/39181684377#step:4:134) with `python3.14.0a5`:\n```\nTesting Recursion Limit\nRecursion Limit ok\n```\n\n[Output](https://github.com/cloudpipe/cloudpickle/actions/runs/13993305376/job/39182057099) with `python3.14.0a6`:\n```\nFatal Python error: _Py_CheckRecursiveCall: Unrecoverable stack overflow (used 3923 kB)\nPython runtime state: initialized\n\nCurrent thread 0x00000001f839cf80 (most recent call first):\n  File \"/Users/runner/work/cloudpickle/cloudpickle/test_recursion_error.py\", line 3 in __getattribute__\n  File \"/Users/runner/work/cloudpickle/cloudpickle/test_recursion_error.py\", line 3 in __getattribute__\n  File \"/Users/runner/work/cloudpickle/cloudpickle/test_recursion_error.py\", line 3 in __getattribute__\n....\n```\n\n\n### CPython versions tested on:\n\n3.14\n\n### Operating systems tested on:\n\nmacOS\n\n### Output from running 'python -VV' on the command line:\n\n_No response_","author":{"url":"https://github.com/tomMoral","@type":"Person","name":"tomMoral"},"datePublished":"2025-03-21T13:56:55.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/131543/cpython/issues/131543"}