René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"_testcapi.set_nomemoy(0) will raise fatal error when --with-pydebug --with-trace-refs","articleBody":"# Bug report\n\n### Bug description:\n\n```cli\n./configure --with-pydebug --with-trace-refs\nmake -j16\n./python\n```\n\nmore can check https://github.com/python/cpython/pull/138491 cc @ZeroIntensity \n\n```python\nimport _testcapi\n_testcapi.set_nomeory(0)\n```\n\n```bt\nPython 3.15.0a0 (heads/main:5edfe55acf2, Sep 9 2025, 09:49:31) [GCC 11.5.0 20240719 (Red Hat 11.5.0-5)] on linux\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n^[[A\u003e\u003e\u003e import _testcapi\nKeyboardInterrupt\n\nimport _testcapi\n_testcapi.set_nomemory(0)\nFatal Python error: _PyRefchain_Trace: _Py_hashtable_set() memory allocation failed\nPython runtime state: initialized\n\nCurrent thread 0x0000ffffa2ca8020 [python] (most recent call first):\nFile \"/home/hyi/cpython/Lib/_pyrepl/console.py\", line 182 in runcode\nFile \"/home/hyi/cpython/Lib/_pyrepl/console.py\", line 239 in runsource\nFile \"/home/hyi/cpython/Lib/code.py\", line 324 in push\nFile \"/home/hyi/cpython/Lib/_pyrepl/simple_interact.py\", line 151 in run_multiline_interactive_console\nFile \"/home/hyi/cpython/Lib/_pyrepl/main.py\", line 58 in interactive_console\n\nExtension modules: _testcapi (total: 1)\nAborted\n```\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nOther","author":{"url":"https://github.com/yihong0618","@type":"Person","name":"yihong0618"},"datePublished":"2025-09-09T02:01:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/138688/cpython/issues/138688"}