Description
Crash report
When PyFrame_GetBack is called during a sys.settrace hook in a C extension, it segfaults for some libraries(spacy)
Following is a reproducer: https://gist.github.com/sumerc/b254f38c5a620b8d47aba7398b3c7791.
Error messages
Enter any relevant error message caused by the crash, including a core dump if there is one.
A gdb stack trace: (for more information: the last frame executed was <frame at 0x7fffd25b2d40, file 'thinc/backends/numpy_ops.pyx', line 1, code __Pyx_PyMODINIT_FUNC PyInit_numpy_ops(void)>) I also have another application that crashes at the same point but with a different frame: <frame at 0x7ff6568e4520, file 'stringsource', line 282, code __init__>. The interesting part is both are Cython functions. Might there be something related with Cython?
Thread 1 "python" received signal SIGSEGV, Segmentation fault.
0x00007ffff767a548 in _PyFrame_IsIncomplete (frame=0xcdcdcdcdcdcdcdcd) at ./Include/internal/pycore_frame.h:147
147 ./Include/internal/pycore_frame.h: No such file or directory.
(gdb) bt
#0 0x00007ffff767a548 in _PyFrame_IsIncomplete (frame=0xcdcdcdcdcdcdcdcd) at ./Include/internal/pycore_frame.h:147
#1 0x00007ffff767d9e7 in PyFrame_GetBack (frame=0x7fffd03ef120) at Objects/frameobject.c:1326
#2 0x00007ffff60e7bce in PyTraceFunction (obj=0x0, frame=0x7fffd03ef120, what=0, arg=0x0) at main.c:33
#3 0x00007fffd02db71b in ?? () from /home/supo/.pyenv/versions/3.11.1-debug/lib/python3.11/site-packages/thinc/backends/[numpy_ops.cpython-311-x86_64-linux-gnu.so](http://numpy_ops.cpython-311-x86_64-linux-gnu.so/)
#4 0x00007fffd02d4697 in ?? () from /home/supo/.pyenv/versions/3.11.1-debug/lib/python3.11/site-packages/thinc/backends/[numpy_ops.cpython-311-x86_64-linux-gnu.so](http://numpy_ops.cpython-311-x86_64-linux-gnu.so/)
#5 0x00007ffff76bab22 in PyModule_ExecDef (module=0x7fffd16273b0, def=0x7fffd038ba60) at Objects/moduleobject.c:419
#6 0x00007ffff77f38ec in exec_builtin_or_dynamic (mod=0x7fffd16273b0) at Python/import.c:2333
#7 0x00007ffff77f3ab8 in _imp_exec_dynamic_impl (module=0x7ffff7f83bf0, mod=0x7fffd16273b0) at Python/import.c:2407
#8 0x00007ffff77ef0b0 in _imp_exec_dynamic (module=0x7ffff7f83bf0, mod=0x7fffd16273b0) at Python/clinic/import.c.h:474
#9 0x00007ffff76b9170 in cfunction_vectorcall_O (func=0x7ffff7f882f0, args=0x7fffd03e1ff8, nargsf=1, kwnames=0x0) at Objects/methodobject.c:514
#10 0x00007ffff764bf31 in _PyVectorcall_Call (tstate=0x7ffff7d8ba38 <_PyRuntime+166328>, func=0x7ffff76b9065 <cfunction_vectorcall_O>, callable=0x7ffff7f882f0,
tuple=0x7fffd03e1fe0, kwargs=0x7fffd03fc4d0) at Objects/call.c:245
#11 0x00007ffff764c2d9 in _PyObject_Call (tstate=0x7ffff7d8ba38 <_PyRuntime+166328>, callable=0x7ffff7f882f0, args=0x7fffd03e1fe0, kwargs=0x7fffd03fc4d0)
at Objects/call.c:328
#12 0x00007ffff764c3cb in PyObject_Call (callable=0x7ffff7f882f0, args=0x7fffd03e1fe0, kwargs=0x7fffd03fc4d0) at Objects/call.c:355
#13 0x00007ffff77b4158 in do_call_core (tstate=0x7ffff7d8ba38 <_PyRuntime+166328>, func=0x7ffff7f882f0, callargs=0x7fffd03e1fe0, kwdict=0x7fffd03fc4d0,
use_tracing=255) at Python/ceval.c:7329
Your environment
I have reproduced same error for Python 3.11.0rc1 on Ubuntu 18.04/x86/64 and a Mac M1. (The same code runs fine on 3.9)
Update: Reproduced the segfault with 3.11.1 final release, too.
@pablogsal, Any idea?