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JIT: Segfault at binary_op1 #142961
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interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)topic-JITtype-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump
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interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)topic-JITtype-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump
Crash report
What happened?
It's possible to segfault a JIT build by running the code below:
Backtrace:
Output from running with
PYTHON_LLTRACE=4 PYTHON_OPT_DEBUG=4:166_segfault_lltrace_opt_debug.txt
Found using lafleur.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
Python 3.15.0a3+ (heads/main:1391ee664c8, Dec 18 2025, 21:09:23) [Clang 21.1.2 (2ubuntu6)]
Linked PRs
len(tuple)in JIT #142962