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Description
Crash report
What happened?
Original details are on:https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1040057 ; despite what is written, the issue also happens on python 3.12, and can be reliably reproduced when running the test from inside a PDB, suggesting some kind of timing issue.
I could reproduce independently on Archlinux an python 3.11 as well as on 3.12 in a debian docker image (https://ci.codeberg.org/repos/12939/pipeline/7/26 ).
--Return--> /home/mathieui/dev/slixmpp/run_tests.py(73)<module>()->None-> sys.exit(not result.wasSuccessful())(Pdb) quitThread 1 "python" received signal SIGSEGV, Segmentation fault.PyObject_CallOneArg (func=0x0, arg=0x7ffff41be950) at Objects/call.c:376376 return _PyObject_VectorcallTstate(tstate, func, args, nargsf, NULL); (gdb) bt #0 PyObject_CallOneArg (func=0x0, arg=0x7ffff41beb90) at Objects/call.c:376#1 0x00007ffff7a1b7b5 in PyObject_Repr (v=0x7ffff41beb90) at Objects/object.c:433#2 0x00007ffff79df41e in unicode_fromformat_arg (vargs=0x7fffffffdb50, f=0x7ffff7b42af4 "R is not in deque", writer=0x7fffffffdaf0) at Objects/unicodeobject.c:3036#3 PyUnicode_FromFormatV (format=<optimized out>, vargs=<optimized out>) at Objects/unicodeobject.c:3100#4 0x00007ffff7a0f007 in _PyErr_FormatV (vargs=0x7fffffffdbd0, format=0x7ffff7b42af3 "%R is not in deque", exception=0x7ffff7c73a60 <_PyExc_ValueError>, tstate=0x7ffff7d89378 <_PyRuntime+166328>) at Python/errors.c:1106#5 PyErr_Format (exception=0x7ffff7c73a60 <_PyExc_ValueError>, format=0x7ffff7b42af3 "%R is not in deque") at Python/errors.c:1149#6 0x00007ffff7958751 in deque_remove (deque=0x7ffff41ef010, value=0x7ffff41beb90) at ./Modules/_collectionsmodule.c:1256#7 0x00007ffff7a14e94 in method_vectorcall_O (func=0x7ffff7081e40, args=0x7ffff404cfd8, nargsf=<optimized out>, kwnames=0x0) at Objects/descrobject.c:481#8 0x00007ffff79f2987 in _PyObject_VectorcallTstate (kwnames=<optimized out>, nargsf=<optimized out>, args=<optimized out>, callable=0x7ffff7081e40, tstate=0x7ffff7d89378 <_PyRuntime+166328>) at ./Include/internal/pycore_call.h:92#9 PyObject_Vectorcall (callable=0x7ffff7081e40, args=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at Objects/call.c:299#10 0x00007ffff79e4c23 in _PyEval_EvalFrameDefault (tstate=<optimized out>, frame=<optimized out>, throwflag=<optimized out>) at Python/ceval.c:4760#11 0x00007ffff7aafcf2 in _PyEval_EvalFrame (throwflag=<optimized out>, frame=0x7ffff404cf70, tstate=0x7ffff7d89378 <_PyRuntime+166328>) at ./Include/internal/pycore_ceval.h:73#12 gen_send_ex2 (gen=gen@entry=0x7ffff404cf20, arg=arg@entry=0x7ffff7d58ac0 <_Py_NoneStruct>, presult=presult@entry=0x7fffffffdf70, exc=exc@entry=1, closing=closing@entry=1) at Objects/genobject.c:219#13 0x00007ffff7ab08e7 in gen_send_ex (gen=gen@entry=0x7ffff404cf20, arg=arg@entry=0x7ffff7d58ac0 <_Py_NoneStruct>, exc=exc@entry=1, closing=closing@entry=1) at Objects/genobject.c:287#14 0x00007ffff7ab05c4 in gen_close (gen=gen@entry=0x7ffff404cf20, args=args@entry=0x0) at Objects/genobject.c:391#15 0x00007ffff7b1c5fe in gen_close_iter (yf=yf@entry=0x7ffff404cf20) at Objects/genobject.c:327#16 0x00007ffff7ab0620 in gen_close (gen=gen@entry=0x7ffff455be00, args=args@entry=0x0) at Objects/genobject.c:385#17 0x00007ffff7a2e61e in _PyGen_Finalize (self=0x7ffff455be00) at Objects/genobject.c:96#18 0x00007ffff79d01b8 in finalize_garbage (tstate=0x7ffff7d89378 <_PyRuntime+166328>, collectable=0x7fffffffe110) at Modules/gcmodule.c:978#19 gc_collect_main (tstate=0x7ffff7d89378 <_PyRuntime+166328>, generation=generation@entry=2, n_collected=n_collected@entry=0x0, n_uncollectable=n_uncollectable@entry=0x0, nofail=nofail@entry=1) at Modules/gcmodule.c:1274#20 0x00007ffff7acc77c in _PyGC_CollectNoFail (tstate=<optimized out>) at Modules/gcmodule.c:2110#21 0x00007ffff7ab8f18 in Py_FinalizeEx () at Python/pylifecycle.c:1833#22 0x00007ffff7ac5093 in Py_RunMain () at Modules/main.c:682#23 0x00007ffff7a8e79b in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at Modules/main.c:734#24 0x00007ffff7645cd0 in __libc_start_call_main (main=main@entry=0x555555555120 <main>, argc=argc@entry=5, argv=argv@entry=0x7fffffffe4a8) at ../sysdeps/nptl/libc_start_call_main.h:58#25 0x00007ffff7645d8a in __libc_start_main_impl (main=0x555555555120 <main>, argc=5, argv=0x7fffffffe4a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe498) at ../csu/libc-start.c:360py-bt does not catch anything, suggesting it happens during interpreter shutdown, which would make sense. Our workaround is registering a loop.close() in atexit(), which makes the issue disappear, but my feeling is that this should not happen.
I can provide the full backtrace but most values are optimized out, making it much less useful.
The setup requires going through quite a bit of code so we do not have a minimal test case (in terms of code), albeit running our test suite should not be too difficult.
CPython versions tested on:
3.10, 3.11, 3.12
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
No response
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