gh-129824: fix data races in subinterpreters under TSAN #135794
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kumaraditya303
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🤖 New build scheduled with the buildbot fleet by @kumaraditya303 for commit be846e8 🤖 Results will be shown at: https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F135794%2Fmerge If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again. |
bedevere-bot
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This also fixes #116909 so more of test_capi tests can be enabled under free-threading TSAN (will do in follow up). |
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This fixes the data races in typeobject.c in subinterpreters under free-threading. The type flags are only modified in the main interpreter as all static types are first initialized in main interpreter. With the fix the test_interpreter_pool tests have no data races in typeobject.c under TSAN (there are still some unrelated data races in module exec like posix and struct).