[New-bugs-announce] [issue43626] SIGSEV in PyErr_SetObject
Abraham Macias
report at bugs.python.org
Thu Mar 25 15:16:51 EDT 2021
New submission from Abraham Macias <amacias at gruposolutia.com>:
Hi, I'm dealing with random crashes when using pymongo in Python 3.7.3 in a Debian Buster.
This is the python backtrace:
(gdb) thread apply all py-bt
Thread 2 (Thread 0x7f9817d95700 (LWP 221)):
Traceback (most recent call first):
File "/usr/local/lib/python3.7/dist-packages/gevent/_threading.py", line 80, in wait
waiter.acquire() # Block on the native lock
File "/usr/local/lib/python3.7/dist-packages/gevent/_threading.py", line 162, in get
self._not_empty.wait()
File "/usr/local/lib/python3.7/dist-packages/gevent/threadpool.py", line 270, in _worker
task = task_queue.get()
File "/usr/local/lib/python3.7/dist-packages/gevent/threadpool.py", line 254, in __trampoline
g.switch()
Thread 1 (Thread 0x7f981fdfd740 (LWP 216)):
Traceback (most recent call first):
<built-in method decode_all of module object at remote 0x7f981d41ca48>
File "/usr/local/lib/python3.7/dist-packages/bson/__init__.py", line 1089, in _decode_all_selective
return decode_all(data, codec_options)
File "/usr/local/lib/python3.7/dist-packages/pymongo/message.py", line 1616, in unpack_response
self.payload_document, codec_options, user_fields)
File "/usr/local/lib/python3.7/dist-packages/pymongo/cursor.py", line 1080, in _unpack_response
legacy_response)
File "/usr/local/lib/python3.7/dist-packages/pymongo/server.py", line 131, in run_operation_with_response
user_fields=user_fields)
File "/usr/local/lib/python3.7/dist-packages/pymongo/mongo_client.py", line 1366, in _cmd
unpack_res)
File "/usr/local/lib/python3.7/dist-packages/pymongo/mongo_client.py", line 1471, in _retryable_read
return func(session, server, sock_info, slave_ok)
File "/usr/local/lib/python3.7/dist-packages/pymongo/mongo_client.py", line 1372, in _run_operation_with_response
exhaust=exhaust)
File "/usr/local/lib/python3.7/dist-packages/pymongo/cursor.py", line 1001, in __send_message
address=self.__address)
File "/usr/local/lib/python3.7/dist-packages/pymongo/cursor.py", line 1124, in _refresh
self.__send_message(q)
File "/usr/local/lib/python3.7/dist-packages/pymongo/cursor.py", line 1207, in next
if len(self.__data) or self._refresh():
File "/usr/local/lib/python3.7/dist-packages/pymongo/collection.py", line 1319, in find_one
for result in cursor.limit(-1):
File "/usr/local/lib/python3.7/dist-packages/gecoscc/userdb.py", line 119, in create_user
user = self.collection.find_one({'email': email})
File "/usr/local/lib/python3.7/dist-packages/gecoscc/commands/create_adminuser.py", line 95, in command
{'is_superuser': self.options.is_superuser}
File "/usr/local/lib/python3.7/dist-packages/gecoscc/management.py", line 90, in __call__
self.command()
File "/usr/local/lib/python3.7/dist-packages/gecoscc/management.py", line 48, in main
command()
File "/usr/local/bin/pmanage", line 10, in <module>
sys.exit(main())
(gdb)
And this is the builtin-code backtrace:
Core was generated by `/usr/bin/python3 /usr/local/bin/pmanage /opt/gecosccui/gecoscc.ini create_admin'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 PyErr_SetObject (exception=0x7ff9c0 <_PyExc_AttributeError.lto_priv.2311>, value=0x7f1ab49cb098) at ../Python/errors.c:101
101 Py_INCREF(exc_value);
[Current thread is 1 (Thread 0x7f1abc823740 (LWP 370))]
(gdb) bt
#0 PyErr_SetObject (exception=<type at remote 0x7ff9c0>, value="type object 'dict' has no attribute '_type_marker'") at ../Python/errors.c:101
#1 0x000000000052c23b in PyErr_FormatV (vargs=0x7ffedff77c40, format=<optimized out>, exception=<type at remote 0x7ff9c0>) at ../Python/errors.c:852
#2 PyErr_Format (exception=<type at remote 0x7ff9c0>, format=<optimized out>) at ../Python/errors.c:852
#3 0x000000000058717d in type_getattro (type=<optimized out>, name=<optimized out>) at ../Objects/typeobject.c:3223
#4 0x000000000054baae in _PyObject_LookupAttr (result=<synthetic pointer>, name=<optimized out>, v=<type at remote 0x81a240>) at ../Objects/object.c:949
#5 builtin_getattr (self=<optimized out>, args=<optimized out>, nargs=<optimized out>) at ../Python/bltinmodule.c:1121
#6 0x00000000005cccc3 in _PyMethodDef_RawFastCallKeywords (method=0x89d160 <builtin_methods+544>, self=<module at remote 0x7f1abc52bc28>, args=0x1237208, nargs=<optimized out>, kwnames=<optimized out>)
at ../Objects/call.c:651
#7 0x00000000005463e3 in _PyCFunction_FastCallKeywords (kwnames=0x0, nargs=3, args=0x1237208, func=<built-in method getattr of module object at remote 0x7f1abc52bc28>) at ../Objects/call.c:730
#8 call_function (kwnames=0x0, oparg=3, pp_stack=<synthetic pointer>) at ../Python/ceval.c:4568
#9 _PyEval_EvalFrameDefault (f=<optimized out>, throwflag=<optimized out>) at ../Python/ceval.c:3124
#10 0x00000000005cd68c in PyEval_EvalFrameEx (throwflag=0,
f=Frame 0x1237088, for file /usr/local/lib/python3.7/dist-packages/bson/codec_options.py, line 35, in _raw_document_class (document_class=<type at remote 0x81a240>)) at ../Python/ceval.c:547
#11 function_code_fastcall (globals=<optimized out>, nargs=<optimized out>, args=<optimized out>, co=<optimized out>) at ../Objects/call.c:283
#12 _PyFunction_FastCallKeywords (func=<optimized out>, stack=<optimized out>, nargs=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:408
#13 0x000000000054207c in call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>) at ../Python/ceval.c:4616
#14 _PyEval_EvalFrameDefault (f=<optimized out>, throwflag=<optimized out>) at ../Python/ceval.c:3124
#15 0x000000000053f732 in PyEval_EvalFrameEx (throwflag=0,
f=Frame 0x17882e8, for file /usr/local/lib/python3.7/dist-packages/bson/__init__.py, line 1013, in decode_all (data=b'V\x00\x00\x00\x03cursor\x00=\x00\x00\x00\x04firstBatch\x00\x05\x00\x00\x00\x00\x12id\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02ns\x00\x13\x00\x00\x00gecoscc.adminusers\x00\x00\x01ok\x00\x00\x00\x00\x00\x00\x00\xf0?\x00', codec_options=<CodecOptions at remote 0x7f1ab4ac2208>, view=<memoryview at remote 0x7f1ab5375708>, data_len=86, docs=[], position=0, end=85)) at ../Python/ceval.c:547
#16 _PyEval_EvalCodeWithName (_co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=<optimized out>, kwnames=0x0, kwargs=0x7f1ab49de978, kwcount=<optimized out>,
kwstep=1, defs=0x7f1ab9e42220, defcount=1, kwdefs=0x0, closure=0x0, name='decode_all', qualname='decode_all') at ../Python/ceval.c:3930
#17 0x00000000005cd982 in _PyFunction_FastCallKeywords (func=<optimized out>, stack=0x7f1ab49de968, nargs=2, kwnames=<optimized out>) at ../Objects/call.c:433
#18 0x000000000054207c in call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>) at ../Python/ceval.c:4616
#19 _PyEval_EvalFrameDefault (f=<optimized out>, throwflag=<optimized out>) at ../Python/ceval.c:3124
#20 0x00000000005cd68c in PyEval_EvalFrameEx (throwflag=0,
f=Frame 0x7f1ab49de7c8, for file /usr/local/lib/python3.7/dist-packages/bson/__init__.py, line 1089, in _decode_all_selective (data=b'V\x00\x00\x00\x03cursor\x00=\x00\x00\x00\x04firstBatch\x00\x05\x00\x00\x00\x00\x12id\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02ns\x00\x13\x00\x00\x00gecoscc.adminusers\x00\x00\x01ok\x00\x00\x00\x00\x00\x00\x00\xf0?\x00', codec_options=<CodecOptions at remote 0x7f1ab4ac2208>, fields={'cursor': {'firstBatch': 1, 'nextBatch': 1}})) at ../Python/ceval.c:547
As I understand the code is using "getattr" to ckeck if a dict contains an attribute called "_type_marker", and somehow when Python is formatting the exception finds that the stack has been corrupted.
What can be happening? How can I help to debug this?
Best regards!
----------
components: Interpreter Core
messages: 389520
nosy: amacias
priority: normal
severity: normal
status: open
title: SIGSEV in PyErr_SetObject
type: crash
versions: Python 3.7
_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43626>
_______________________________________
More information about the New-bugs-announce
mailing list