More info I found in the backtrace. I am afraid this points to memory
corruption:
error_messages={
'required': <__proxy__(_proxy____args=('This field is required.',),
_proxy____kw={}) at remote 0x7f40bdf738d0>,
'null': <__proxy__(_proxy____args=('This field may not be null.',),
_proxy____kw={}) at remote 0x7f40bdf73950>,
'invalid': <__proxy__(_proxy____args=('Invalid data. Expected a dictionary,
but got {datatype}.',), _proxy____kw={}) at remote 0x7f40bdf8c450>
}
On Thursday, April 24, 2025 at 4:48:55 PM UTC-4 David Erie wrote:
> Hi, I have a SEGFAULT crash occurring on the order of months and I finally
> got a Python backtrace out of gdb to help track down the root cause. We
> have DRF 3.14.0 running on Python 3.11.7 on Red Hat. Can anyone see a
> problem with this stack trace?
>
> (gdb) py-bt
> Traceback (most recent call first):
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/fields.py",
>
> line 356, in __init__
> self.error_messages = messages
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/fields.py",
>
> line 1553, in __init__
> super().__init__(**kwargs)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/fields.py",
>
> line 655, in __deepcopy__
> return self.__class__(*args, **kwargs)
> File "/usr/lib64/python3.11/copy.py", line 153, in deepcopy
> y = copier(memo)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/fields.py",
>
> line 1575, in __init__
> self.child = kwargs.pop('child', copy.deepcopy(self.child))
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/fields.py",
>
> line 655, in __deepcopy__
> return self.__class__(*args, **kwargs)
> File "/usr/lib64/python3.11/copy.py", line 153, in deepcopy
> y = copier(memo)
> File "/usr/lib64/python3.11/copy.py", line 297, in _reconstruct
> value = deepcopy(value, memo)
> File "/usr/lib64/python3.11/copy.py", line 172, in deepcopy
> y = _reconstruct(x, memo, *rv)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 379, in get_fields
> return copy.deepcopy(self._declared_fields)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 356, in fields
> for key, value in self.get_fields().items():
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/django/utils/functional.py",
>
> line 57, in __get__
> res = instance.__dict__[self.name] = self.func(instance)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 362, in _writable_fields
> for field in self.fields.values():
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 479, in to_internal_value
> for field in fields:
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 426, in run_validation
> value = self.to_internal_value(data)
> File
> "/usr/local/lib/viacontrol/4.0.0/device-manager/lib/python3.11/site-packages/rest_framework/serializers.py",
>
> line 227, in is_valid
> self._validated_data = self.run_validation(self.initial_data)
>
> Thank you for the help.
>
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