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Compilation on Windows fails with assert in generated_cases.c.h #131987
Description
Bug report
Bug description:
Command line: .\PCBuild\build.bat -p x64 -d -r
python.c
python.vcxproj -> D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe
Assertion failed: WITHIN_STACK_BOUNDS(), file D:\Sources\_pythonish\cpython\Python\generated_cases.c.h, line 11092
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: The command "setlocal
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: set PYTHONPATH=D:\Sources\_pythonish\cpython\Lib
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: "D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe" "D:\Sources\_pythonish\cpython\PC\validate_ucrtbase.py" ucrtbased" exited with code 3.
Wrote D:\Sources\_pythonish\cpython\PCbuild\amd64\LICENSE.txt
WinMain.c
pythonw.vcxproj -> D:\Sources\_pythonish\cpython\PCbuild\amd64\pythonw_d.exe
Build succeeded.
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: The command "setlocal
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: set PYTHONPATH=D:\Sources\_pythonish\cpython\Lib
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: "D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe" "D:\Sources\_pythonish\cpython\PC\validate_ucrtbase.py" ucrtbased" exited with code 3.
1 Warning(s)
0 Error(s)
Time Elapsed 00:01:06.65
CPython versions tested on:
CPython main branch
Operating systems tested on:
Windows
Activity
sergey-miryanov commentedon Apr 1, 2025
It compiles fine without 053c285
ping @mpage
mpage commentedon Apr 1, 2025
I can't reproduce the error that you're seeing when I build from a clean checkout of cpython at
c2ac662f284b7c3f0701173f2467bf1e18aad2e2. I'm using:.\PCBuild\build.bat -p x64 -d -rFidget-Spinner commentedon Apr 1, 2025
@mpage I think we might've forgotten to bump the pycore magic number in that PR. So the OP might be loading stale bytecode.
mpage commentedon Apr 1, 2025
Ugh, I thought I did that. Maybe it got blown away in a merge. That's probably what's happening. Thanks!
gh-131987: Bump the magic number (#131991)
sergey-miryanov commentedon Apr 2, 2025
Thanks for quick fix!