Assertion failure with multiple threads & legacy opcode tracing in free-threaded build #118415
Description
Crash report
What happened?
Bisected to 33da0e8.
import sys
import threading
def trace(frame, event, arg):
frame.f_trace_opcodes = True
return trace
sys.settrace(trace)
l = threading._RLock()
def f():
while True:
with l:
pass
t = threading.Thread(target=f)
t.start()
while True:
with l:
pass
t.join()$ ./python -X faulthandler -X gil=0 repro.py
python: Python/instrumentation.c:1216: _Py_call_instrumentation_line: Assertion `is_version_up_to_date(code, tstate->interp)' failed.
Fatal Python error: Aborted
Current thread 0x00007f7bc3712700 (most recent call first):
File "/home/radislav/projects/cpython/Lib/threading.py", line 209 in acquire
File "/home/radislav/projects/cpython/repro.py", line 14 in f
File "/home/radislav/projects/cpython/Lib/threading.py", line 990 in run
File "/home/radislav/projects/cpython/Lib/threading.py", line 1039 in _bootstrap_inner
File "/home/radislav/projects/cpython/Lib/threading.py", line 1010 in _bootstrap
Thread 0x00007f7bc39fb280 (most recent call first):
File "/home/radislav/projects/cpython/Lib/threading.py", line 206 in acquire
File "/home/radislav/projects/cpython/repro.py", line 20 in <module>
Aborted (core dumped)
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:5a90de0d4c, Apr 30 2024, 00:01:27) [GCC 10.2.1 20210110]