New GitHub issue #118680 from chgnrdv:<br>
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<pre>
# Crash report
### What happened?
Found when playing with https://github.com/python/cpython/issues/118415#issuecomment-2091032469. Appears on both debug and non-debug builds.
```python
import sys
import threading
l = threading._PyRLock()
def f():
while True:
with l:
pass
t = threading.Thread(target=f)
t.start()
while True:
f = sys._current_frames()[t.ident]
while f:
f.f_code
f = f.f_back
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.13.0a6+ (heads/main:9fd33af5ac, May 7 2024, 03:18:30) [GCC 10.2.1 20210110]
</pre>
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<a href="https://github.com/python/cpython/issues/118680">View on GitHub</a>
<p>Labels: type-crash</p>
<p>Assignee: </p>