[3.13] gh-140815: Fix faulthandler for invalid/freed frame (#140921) #140985
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) faulthandler now detects if a frame or a code object is invalid or freed. Add helper functions: * _PyCode_SafeAddr2Line() * _PyFrame_SafeGetCode() * _PyFrame_SafeGetLasti() _PyMem_IsPtrFreed() now detects pointers in [-0xff, 0xff] range as freed. (cherry picked from commit a84181c)
vstinner
requested review from
ericsnowcurrently,
iritkatriel and
markshannon
as code owners
This was referenced Nov 4, 2025
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faulthandler now detects if a frame or a code object is invalid or freed.
Add helper functions:
_PyMem_IsPtrFreed() now detects pointers in [-0xff, 0xff] range as freed.
(cherry picked from commit a84181c)
faulthandler.dump_traceback_later#140815