Closed
Description
Crash report
What happened?
I've originally hit it while running slixmpp's test suite. I've been able to reduce it to the following program:
import asyncio
import xml.etree.ElementTree as ET
from typing import Optional
def set_see_other_host() -> Optional[ET.Element]:
pass
class XMLStream:
def disconnect(self):
asyncio.ensure_future(self._end_stream_wait())
async def _end_stream_wait(self):
await asyncio.wait_for(asyncio.Future(), 1)
def _remove_schedules(self):
pass
parser = ET.XMLPullParser()
xmpp = XMLStream()
foo = xmpp._remove_schedules
xmpp.disconnect()
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.Queue().join())I've been able to reproduce this with 3.12.0, and the tips of 3.12 and main branches. I've been able to bisect it to the following commit:
commit 1b5a2b085c28d230c9ef9bd9b472afc85e087ced
Author: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
AuthorDate: 2023-05-17 01:35:07 +0200
Commit: GitHub <noreply@github.com>
CommitDate: 2023-05-17 01:35:07 +0200
GH-103092: isolate `_elementtree` (#104561)
Backtrace:
(gdb) bt
#0 0x00007f9da2d8611c in xmlparser_gc_clear (self=0x7f9da2617760) at ./Modules/_elementtree.c:3784
#1 0x00007f9da2d86857 in xmlparser_dealloc (self=0x7f9da2617760) at ./Modules/_elementtree.c:3809
#2 0x0000559a2edd2145 in _Py_Dealloc (op=0x7f9da2617760) at Objects/object.c:2858
#3 0x0000559a2edae16d in Py_DECREF (op=0x7f9da2617760) at ./Include/object.h:879
#4 Py_XDECREF (op=0x7f9da2617760) at ./Include/object.h:972
#5 0x0000559a2edbbadb in _PyObject_FreeInstanceAttributes (self=0x7f9da3146d20) at Objects/dictobject.c:5646
#6 0x0000559a2ee03a71 in subtype_dealloc (self=0x7f9da3146d20) at Objects/typeobject.c:2064
#7 0x0000559a2edd2145 in _Py_Dealloc (op=0x7f9da3146d20) at Objects/object.c:2858
#8 0x0000559a2edae16d in Py_DECREF (op=0x7f9da3146d20) at ./Include/object.h:879
#9 Py_XDECREF (op=0x7f9da3146d20) at ./Include/object.h:972
#10 0x0000559a2edafbef in free_keys_object (interp=0x559a2f2a73a8 <_PyRuntime+76872>, keys=0x7f9da26c9ac0) at Objects/dictobject.c:675
#11 0x0000559a2edaef84 in dictkeys_decref (interp=0x559a2f2a73a8 <_PyRuntime+76872>, dk=0x7f9da26c9ac0) at Objects/dictobject.c:335
#12 0x0000559a2edb31e2 in PyDict_Clear (op=0x7f9da322ba00) at Objects/dictobject.c:2120
#13 0x0000559a2edb7a1e in dict_tp_clear (op=0x7f9da322ba00) at Objects/dictobject.c:3588
#14 0x0000559a2efb69ec in delete_garbage (tstate=0x559a2f30ce28 <_PyRuntime+493256>, gcstate=0x559a2f2a7798 <_PyRuntime+77880>,
collectable=0x7ffffccdee70, old=0x559a2f2a77e0 <_PyRuntime+77952>) at Modules/gcmodule.c:1033
#15 0x0000559a2efb707c in gc_collect_main (tstate=0x559a2f30ce28 <_PyRuntime+493256>, generation=2, n_collected=0x0,
n_uncollectable=0x0, nofail=1) at Modules/gcmodule.c:1313
#16 0x0000559a2efb8a1e in _PyGC_CollectNoFail (tstate=0x559a2f30ce28 <_PyRuntime+493256>) at Modules/gcmodule.c:2154
#17 0x0000559a2ef74d80 in finalize_modules (tstate=0x559a2f30ce28 <_PyRuntime+493256>) at Python/pylifecycle.c:1677
#18 0x0000559a2ef751cb in Py_FinalizeEx () at Python/pylifecycle.c:1931
#19 0x0000559a2efb4ced in Py_RunMain () at Modules/main.c:709
#20 0x0000559a2efb4d9f in pymain_main (args=0x7ffffccdefd0) at Modules/main.c:737
#21 0x0000559a2efb4e5f in Py_BytesMain (argc=2, argv=0x7ffffccdf138) at Modules/main.c:761
#22 0x0000559a2eccc885 in main (argc=2, argv=0x7ffffccdf138) at ./Programs/python.c:15
CPython versions tested on:
3.12, CPython main branch
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
Python 3.13.0a1+ (heads/main:ba8aa1fd37, Nov 6 2023, 16:26:31) [GCC 13.2.1 20231014]
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