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3.12: segmentation fault from compile() builtin #99708
Labels
3.12
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
type-crash
A hard crash of the interpreter, possibly with a core dump
Comments
cc @iritkatriel |
Thanks for the report. This is not only with exceptions, seems to be empty exit block with a const-False if condition:
|
A newline seems to make a difference:
|
That's because we add a NOP for the line of the dead code, so the block is not empty. |
iritkatriel
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…an empty body block
iritkatriel
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…an empty body block
iritkatriel
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…an empty body block
iritkatriel
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Nov 24, 2022
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Labels
3.12
bugs and security fixes
interpreter-core
(Objects, Python, Grammar, and Parser dirs)
type-crash
A hard crash of the interpreter, possibly with a core dump
Crash report
I can trigger a crash of the 3.12 interpreter using the following Python instruction:
Error messages
The full output when running locally-built cpython with debug assertions avoids a segfault, triggering an assertion instead:
Your environment
I originally encountered the segmentation fault on macOS with 3.12.0a1.
I have reproduced it above with f1a4a6a on ubuntu (inside WSL).
Linked PRs
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