New submission from Evgeny Boytsov <boytso...@yandex.ru>:
Hello everybody! We are using Python 3.7 running at CentOS 7 x64. Python is used as a library to create dynamic extensions for our app server. Some time ago we began to experience crashes in decimal module in some heavy-multithreaded scenarios. After some testing and debugging I was able to reproduce it without our own code using only pybind11 library to simplify embedding (in real app we are using boost.python). I've built python 3.8 with clang 7 and address sanitizer enabled and got error "use-after-free" with some additional data. Please find attached C++ source file, python module and ASAN output. Is it really a bug (most probably - data race) or there is something wrong with such embedding scenario? ---------- components: Interpreter Core files: decimal_crash.zip messages: 362807 nosy: boytsovea priority: normal severity: normal status: open title: Crash in decimal module in heavy-multithreaded scenario versions: Python 3.7, Python 3.8 Added file: https://bugs.python.org/file48923/decimal_crash.zip _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39776> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
