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[Python] Add regression test for the exit-time crash of issue #23728 - #23849
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guitargeek
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vepadulano
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October 27, 2026 06:43
vepadulano
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Hi @vepadulano, can you re-review please? The test also does its job very well of catching the older ROOT branches: |
vepadulano
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Oct 27, 2026
…oject#23728 Reads a tree with a branch of a dictionary-less collection in a fresh Python process, lets TROOT::EndOfProcessCleanups delete it at exit, and constructs another dictionary-less object before exiting. This crashed in the JIT-compiled destructor lookup before the CppInterOp upgrade. The child process runs with MALLOC_PERTURB_ set, because a use of destroyed objects only crashes reliably when freed memory is poisoned, and with ROOT_OBJECT_AUTO_REGISTRATION=1 plus explicit checks that the file is registered with gROOT and owns the tree, so the test keeps exercising the scenario when object auto-registration is disabled. Assisted-by: claude-code:claude-fable-5-1
Test Results 24 files 24 suites 4d 3h 45m 36s ⏱️ Results for commit 2a5c016. |
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Reads a tree with a branch of a dictionary-less collection in a fresh Python process, lets TROOT::EndOfProcessCleanups delete it at exit, and constructs another dictionary-less object before exiting. This crashed in the JIT-compiled destructor lookup before the CppInterOp upgrade.
The child process runs with MALLOC_PERTURB_ set, because a use of destroyed objects only crashes reliably when freed memory is poisoned, and with ROOT_OBJECT_AUTO_REGISTRATION=1 plus explicit checks that the file is registered with gROOT and owns the tree, so the test keeps exercising the scenario when object auto-registration is disabled.
Assisted-by: claude-code:claude-fable-5-1