New submission from STINNER Victor <vstin...@python.org>:

tstate->frame is a borrowed references to the current frame object. It's set tp 
the frame at _PyEval_EvalFrameDefault() and resets to frame->f_back at 
_PyEval_EvalFrameDefault() exit.

Problem: when _PyCode_InitOpcache() fails, tstate->frame is not reset to 
frame->f_back.

----------
components: Interpreter Core
messages: 364850
nosy: vstinner
priority: normal
severity: normal
status: open
title: _PyEval_EvalFrameDefault() doesn't reset tstate->frame if 
_PyCode_InitOpcache() fails
versions: Python 3.8, Python 3.9

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40048>
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