importsysdeftrace(frame,event,arg):returntraceclassFoo:def__init__(self):passdeff():Foo()f()sys.settrace(trace)f()

Program received signal SIGSEGV, Segmentation fault.0x00005555558c3fc0 inallocate_instrumentation_data (code=code@entry=0x555555bc97e0 <_Py_InitCleanup>) at Python/instrumentation.c:14581458        code->_co_monitoring = PyMem_Malloc(sizeof(_PyCoMonitoringData));(gdb) bt#00x00005555558c3fc0 inallocate_instrumentation_data (code=code@entry=0x555555bc97e0 <_Py_InitCleanup>) at Python/instrumentation.c:1458#10x00005555558c620b inupdate_instrumentation_data (code=code@entry=0x555555bc97e0 <_Py_InitCleanup>, interp=interp@entry=0x555555cdc7f8 <_PyRuntime+93016>)    at Python/instrumentation.c:1478#20x00005555558c7522 in_Py_Instrument (code=0x555555bc97e0 <_Py_InitCleanup>, interp=interp@entry=0x555555cdc7f8 <_PyRuntime+93016>) at Python/instrumentation.c:1549#30x00005555558c7d63 ininstrument_all_executing_code_objects (interp=interp@entry=0x555555cdc7f8 <_PyRuntime+93016>) at ./Include/internal/pycore_frame.h:84#40x00005555558c7f12 in_PyMonitoring_SetEvents (tool_id=tool_id@entry=7, events=0) at Python/instrumentation.c:1735#50x00005555558ca8a0 in_PyEval_SetTrace (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, func=func@entry=0x0, arg=arg@entry=0x0)    at Python/legacy_tracing.c:511#60x00005555558fe68c intrace_trampoline (self=<optimized out>, frame=0x7ffff77d5700, what=<optimized out>, arg=<optimized out>) at ./Python/sysmodule.c:1035#70x00005555558c97ae incall_trace_func (self=0x7ffff777e880, arg=0x555555be1600 <_Py_NoneStruct>) at Python/legacy_tracing.c:123#80x00005555558c990c insys_trace_func2 (self=<optimized out>, args=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at Python/legacy_tracing.c:162#90x00005555558c4fb1 in_PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x7fffffffdb08, callable=0x7ffff777e880,     tstate=0x555555d42108 <_PyRuntime+509032>) at ./Include/internal/pycore_call.h:186#10call_one_instrument (interp=interp@entry=0x555555cdc7f8 <_PyRuntime+93016>, tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, args=args@entry=0x7fffffffdb08,     nargsf=nargsf@entry=-9223372036854775806, tool=tool@entry=7'\a', event=event@entry=0) at Python/instrumentation.c:850#110x00005555558c5890 incall_instrumentation_vector (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, event=event@entry=0, frame=frame@entry=0x7ffff7fae988,     instr=instr@entry=0x7ffff7796e08, nargs=<optimized out>, nargs@entry=2, args=args@entry=0x7fffffffdb00) at Python/instrumentation.c:980#120x00005555558c653b in_Py_call_instrumentation (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, event=event@entry=0, frame=frame@entry=0x7ffff7fae988,     instr=instr@entry=0x7ffff7796e08) at Python/instrumentation.c:1015#130x000055555584a828 in_PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, frame=0x7ffff7fae988, throwflag=throwflag@entry=0)    at Python/generated_cases.c.h:43#140x000055555586a69c in_PyEval_EvalFrame (throwflag=0, frame=<optimized out>, tstate=0x555555d42108 <_PyRuntime+509032>) at ./Include/internal/pycore_ceval.h:88#15_PyEval_Vector (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, func=func@entry=0x7ffff77407d0, locals=locals@entry=0x7ffff7755070, args=args@entry=0x0,     argcount=argcount@entry=0, kwnames=kwnames@entry=0x0) at Python/ceval.c:1622#160x000055555586a73f inPyEval_EvalCode (co=co@entry=0x7ffff791d300, globals=globals@entry=0x7ffff7755070, locals=locals@entry=0x7ffff7755070) at Python/ceval.c:557#170x00005555558eaf8e inrun_eval_code_obj (tstate=tstate@entry=0x555555d42108 <_PyRuntime+509032>, co=co@entry=0x7ffff791d300, globals=globals@entry=0x7ffff7755070,     locals=locals@entry=0x7ffff7755070) at Python/pythonrun.c:1725#180x00005555558eb994 inrun_mod (mod=mod@entry=0x555555e01738, filename=filename@entry=0x7ffff7753140, globals=globals@entry=0x7ffff7755070,     locals=locals@entry=0x7ffff7755070, flags=flags@entry=0x7fffffffdf18, arena=arena@entry=0x7ffff7793940) at Python/pythonrun.c:1746#190x00005555558ebaa4 inpyrun_file (fp=fp@entry=0x555555d85aa0, filename=filename@entry=0x7ffff7753140, start=start@entry=257, globals=globals@entry=0x7ffff7755070,     locals=locals@entry=0x7ffff7755070, closeit=closeit@entry=1, flags=0x7fffffffdf18) at Python/pythonrun.c:1646#200x00005555558eeced in_PyRun_SimpleFileObject (fp=fp@entry=0x555555d85aa0, filename=filename@entry=0x7ffff7753140, closeit=closeit@entry=1,     flags=flags@entry=0x7fffffffdf18) at Python/pythonrun.c:463#210x00005555558eef40 in_PyRun_AnyFileObject (fp=fp@entry=0x555555d85aa0, filename=filename@entry=0x7ffff7753140, closeit=closeit@entry=1,     flags=flags@entry=0x7fffffffdf18) at Python/pythonrun.c:79#220x0000555555916e68 inpymain_run_file_obj (program_name=program_name@entry=0x7ffff77a1690, filename=filename@entry=0x7ffff7753140, skip_source_first_line=0)    at Modules/main.c:360#230x0000555555917145 inpymain_run_file (config=config@entry=0x555555cdccf8 <_PyRuntime+94296>) at Modules/main.c:379#240x000055555591820c inpymain_run_python (exitcode=exitcode@entry=0x7fffffffe08c) at Modules/main.c:610#250x0000555555918264 inPy_RunMain () at Modules/main.c:688#260x00005555559182b8 inpymain_main (args=args@entry=0x7fffffffe0d0) at Modules/main.c:718#270x000055555591832d inPy_BytesMain (argc=<optimized out>, argv=<optimized out>) at Modules/main.c:742#280x000055555565073e inmain (argc=<optimized out>, argv=<optimized out>) at ./Programs/python.c:15