René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`test_intern` in `test_sys` leaks negative references in free-threaded build","articleBody":"# Bug report\n\nThe `test_intern` test \"leaks\" -2 references in the free-threaded build. This isn't caught by the refleak build bots because negative refleaks are treated as \"suspicious\" rather than \"failing\". This is a problem because the negative \"leak\" can hide a real leak somewhere else.\n\nI think there's likely something wrong with the accounting for references in the `immortalize=1` case in `intern_common` because this shows up in the free-threaded build, but not the default build.\n\n```\n./python -m test test_sys -m test_intern -R 3:3\n\nUsing random seed: 3390398091\n0:00:00 load avg: 14.98 Run 1 test sequentially\n0:00:00 load avg: 14.98 [1/1] test_sys\nbeginning 6 repetitions. Showing number of leaks (. for 0 or less, X for 10 or more)\n123:456\nX8. ...\ntest_sys leaked [-2, -2, -2] references, sum=-6 (this is fine)\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-122421\n* gh-122430\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/colesbury","@type":"Person","name":"colesbury"},"datePublished":"2024-07-29T20:11:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/122420/cpython/issues/122420"}