pytorch - 💡(How to fix) Fix DISABLED test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu (__main__.TestExamplesCorrectnessCPU) [1 comments, 1 participants]

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pytorch/pytorch#180435Fetched 2026-04-17 08:22:41
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Error Message

Traceback (most recent call last): File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling class MLPClassifier(nn.Module): File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4703 MLPClassifier().to(device), mechanism File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4724, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725 func_model, weights = _get_weights_and_functional_call( File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2474, in call result = self._torchdynamo_orig_backend( frame, cache_entry, self.hooks, frame_state, skip=1 ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2192, in call result = self._inner_convert( frame, cache_entry, hooks, frame_state, skip=skip + 1 ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 736, in call result = _compile( frame.f_code, ...<16 lines>... convert_frame_box=self._box, ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1961, in _compile guarded_code, tracer_output = compile_inner(code, one_graph, hooks) ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_utils_internal.py", line 96, in wrapper_function return function(*args, **kwargs) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner result = _compile_inner(code, one_graph, hooks) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner dynamo_output = compile_frame( code, ...<11 lines>... package=package, ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1478, in compile_frame bytecode, tracer_output = transform_code_object(code, transform) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object tracer_output = transformations(instructions, code_options) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform tracer_output = trace_frame( code, ...<14 lines>... package=package, ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn return fn(*args, **kwargs) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame run_tracer() ~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer tracer.run() ~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4386, in CALL_KW self._call(inst, call_kw=True) ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call self.call_function(fn, args, kwargs) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return return InliningInstructionTranslator.inline_call(self, fn, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5241, in inline_call return tracer.inline_call() ~~~~~~~~~~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5462, in inline_call self.run() ~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL self._call(inst) ~~~~~~~~~~^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call self.call_function(fn, args, kwargs) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward return getattr(self.realize(), name)(*args, **kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function return tx.inline_user_function_return( ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ VariableTracker.build( ^^^^^^^^^^^^^^^^^^^^^^ ...<3 lines>... kwargs, ^^^^^^^ ) ^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return return InliningInstructionTranslator.inline_call(self, fn, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5241, in inline_call return tracer.inline_call() ~~~~~~~~~~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5462, in inline_call self.run() ~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX self.call_function(fn, argsvars.items, kwargsvars) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function return super().call_function(tx, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function return super().call_function(tx, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return return InliningInstructionTranslator.inline_call(self, fn, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5241, in inline_call return tracer.inline_call() ~~~~~~~~~~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5462, in inline_call self.run() ~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL self._call(inst) ~~~~~~~~~~^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call self.call_function(fn, args, kwargs) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward return getattr(self.realize(), name)(*args, **kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function return tx.inline_user_function_return( ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ VariableTracker.build( ^^^^^^^^^^^^^^^^^^^^^^ ...<3 lines>... kwargs, ^^^^^^^ ) ^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return return InliningInstructionTranslator.inline_call(self, fn, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5241, in inline_call return tracer.inline_call() ~~~~~~~~~~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5462, in inline_call self.run() ~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX self.call_function(fn, argsvars.items, kwargsvars) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function return super().call_function(tx, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function return super().call_function(tx, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return return InliningInstructionTranslator.inline_call(self, fn, args, kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5241, in inline_call return tracer.inline_call() ~~~~~~~~~~~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/dynamo/symbolic_convert.py", line 5462, in inline_call self.run() ~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): ~~~~~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX self.call_function(fn, argsvars.items, kwargsvars) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function self.push(fn.call_function(self, args, kwargs)) # type: ignore[arg-type] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward return getattr(self.realize(), name)(args, **kwargs) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/torch.py", line 2694, in call_function tensor_variable = wrap_fx_proxy( tx=tx, ...<4 lines>... ), ) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3084, in wrap_fx_proxy return wrap_fx_proxy_cls(target_cls=TensorVariable, **kwargs) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls out: VTTypeAlias = _wrap_fx_proxy( ~~~~~~~~~~~~~~^ target_cls, tx, proxy, example_value, subclass_type, **options ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ) ^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3283, in _wrap_fx_proxy example_value = get_fake_value(proxy.node, tx, allow_non_graph_fake=True) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3751, in get_fake_value return _get_fake_value_impl(node, tx, allow_non_graph_fake) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3942, in _get_fake_value_impl _wrap_graph_break_with_torch_runtime_err( ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ lambda: unimplemented( ^^^^^^^^^^^^^^^^^^^^^^ ...<5 lines>... ) ^ ) ^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3740, in _wrap_graph_break_with_torch_runtime_err raise exc.with_traceback(e.traceback) from None File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3737, in _wrap_graph_break_with_torch_runtime_err gb_fn() ~~~~~^^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3943, in <lambda> lambda: unimplemented( ~~~~~~~~~~~~~^ gb_type="RuntimeError when making fake tensor call", ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...<3 lines>... from_exc=cause, ^^^^^^^^^^^^^^^ ) ^ File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented raise Unsupported( msg, gb_type, skip_frame, real_stack=past_real_stack ) from from_exc torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call Explanation: Dynamo failed to run FX node with fake tensors: call_function <built-in method empty of type object at 0x7f2552d75b30>(((32, 16),), **{'device': None, 'dtype': None}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/var/lib/jenkins/workspace/aten/src/ATen/core/PythonFallbackKernel.cpp":53, please report a bug to PyTorch. ') Hint: Your code may result in an error when running in eager. Please double check that your code doesn't contain a similar error when actually running eager/uncompiled. You can do this by removing the torch.compile call, or by using torch.compiler.set_stance("force_eager").

Developer debug context:

For more details about this graph break, please visit: https://meta-pytorch.github.io/compile-graph-break-site/gb/gb4315.html

from user code: File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4754, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4724 batched_weights = init_fn(num_models=2) File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4745, in init_fn og_model = MLPClassifier().to(device) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/init.py", line 424, in instantiate_user_defined_class_object obj.init(*args, **kwargs) File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4710, in init self.fc1 = nn.Linear(16, self.hidden_dim) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/init.py", line 424, in instantiate_user_defined_class_object obj.init(*args, **kwargs) File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/nn/modules/linear.py", line 109, in init torch.empty((out_features, in_features), **factory_kwargs)

Set TORCHDYNAMO_VERBOSE=1 for the internal stack trace (please do this especially if you're reporting a bug to PyTorch). For even more developer context, set TORCH_LOGS="+dynamo"

To execute this test, run the following from the base repo dir: PYTORCH_TEST_WITH_DYNAMO=1 python test/functorch/test_eager_transforms.py TestExamplesCorrectnessCPU.test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu

This message can be suppressed by setting PYTORCH_PRINT_REPRO_ON_FAILURE=0

Root Cause

This test was disabled because it is failing in CI. See recent examples and the most recent trunk workflow logs.

Fix Action

Fix / Workaround

Traceback (most recent call last):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4703
    MLPClassifier().to(device), mechanism
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4724, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725
    func_model, weights = _get_weights_and_functional_call(
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
        frame, cache_entry, self.hooks, frame_state, skip=1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
        frame, cache_entry, hooks, frame_state, skip=skip + 1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
        frame.f_code,
    ...<16 lines>...
        convert_frame_box=self._box,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1961, in _compile
    guarded_code, tracer_output = compile_inner(code, one_graph, hooks)
                                  ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
        code,
    ...<11 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1478, in compile_frame
    bytecode, tracer_output = transform_code_object(code, transform)
                              ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
        code,
    ...<14 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4386, in CALL_KW
    self._call(inst, call_kw=True)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/torch.py", line 2694, in call_function
    tensor_variable = wrap_fx_proxy(
        tx=tx,
    ...<4 lines>...
        ),
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3084, in wrap_fx_proxy
    return wrap_fx_proxy_cls(target_cls=TensorVariable, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
                       ~~~~~~~~~~~~~~^
        target_cls, tx, proxy, example_value, subclass_type, **options
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3283, in _wrap_fx_proxy
    example_value = get_fake_value(proxy.node, tx, allow_non_graph_fake=True)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3751, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3942, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        lambda: unimplemented(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<5 lines>...
        )
        ^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3740, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3737, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
    ~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3943, in <lambda>
    lambda: unimplemented(
            ~~~~~~~~~~~~~^
        gb_type="RuntimeError when making fake tensor call",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        from_exc=cause,
        ^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
        msg, gb_type, skip_frame, real_stack=past_real_stack
    ) from from_exc
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_function <built-in method empty of type object at 0x7f2552d75b30>(*((32, 16),), **{'device': None, 'dtype': None}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/var/lib/jenkins/workspace/aten/src/ATen/core/PythonFallbackKernel.cpp":53, please report a bug to PyTorch. ')
  Hint: Your code may result in an error when running in eager. Please double check that your code doesn't contain a similar error when actually running eager/uncompiled. You can do this by removing the `torch.compile` call, or by using `torch.compiler.set_stance("force_eager")`.

Code Example

Traceback (most recent call last):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4703
    MLPClassifier().to(device), mechanism
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4724, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725
    func_model, weights = _get_weights_and_functional_call(
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
        frame, cache_entry, self.hooks, frame_state, skip=1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
        frame, cache_entry, hooks, frame_state, skip=skip + 1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
        frame.f_code,
    ...<16 lines>...
        convert_frame_box=self._box,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1961, in _compile
    guarded_code, tracer_output = compile_inner(code, one_graph, hooks)
                                  ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
        code,
    ...<11 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1478, in compile_frame
    bytecode, tracer_output = transform_code_object(code, transform)
                              ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
        code,
    ...<14 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4386, in CALL_KW
    self._call(inst, call_kw=True)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/torch.py", line 2694, in call_function
    tensor_variable = wrap_fx_proxy(
        tx=tx,
    ...<4 lines>...
        ),
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3084, in wrap_fx_proxy
    return wrap_fx_proxy_cls(target_cls=TensorVariable, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
                       ~~~~~~~~~~~~~~^
        target_cls, tx, proxy, example_value, subclass_type, **options
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3283, in _wrap_fx_proxy
    example_value = get_fake_value(proxy.node, tx, allow_non_graph_fake=True)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3751, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3942, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        lambda: unimplemented(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<5 lines>...
        )
        ^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3740, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3737, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
    ~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3943, in <lambda>
    lambda: unimplemented(
            ~~~~~~~~~~~~~^
        gb_type="RuntimeError when making fake tensor call",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        from_exc=cause,
        ^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
        msg, gb_type, skip_frame, real_stack=past_real_stack
    ) from from_exc
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_function <built-in method empty of type object at 0x7f2552d75b30>(*((32, 16),), **{'device': None, 'dtype': None}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/var/lib/jenkins/workspace/aten/src/ATen/core/PythonFallbackKernel.cpp":53, please report a bug to PyTorch. ')
  Hint: Your code may result in an error when running in eager. Please double check that your code doesn't contain a similar error when actually running eager/uncompiled. You can do this by removing the `torch.compile` call, or by using `torch.compiler.set_stance("force_eager")`. 

  Developer debug context: 

 For more details about this graph break, please visit: https://meta-pytorch.github.io/compile-graph-break-site/gb/gb4315.html

from user code:
   File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4754, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4724
    batched_weights = init_fn(num_models=2)
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4745, in init_fn
    og_model = MLPClassifier().to(device)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/__init__.py", line 424, in instantiate_user_defined_class_object
    obj.__init__(*args, **kwargs)
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4710, in __init__
    self.fc1 = nn.Linear(16, self.hidden_dim)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/__init__.py", line 424, in instantiate_user_defined_class_object
    obj.__init__(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/nn/modules/linear.py", line 109, in __init__
    torch.empty((out_features, in_features), **factory_kwargs)

Set TORCHDYNAMO_VERBOSE=1 for the internal stack trace (please do this especially if you're reporting a bug to PyTorch). For even more developer context, set TORCH_LOGS="+dynamo"


To execute this test, run the following from the base repo dir:
    PYTORCH_TEST_WITH_DYNAMO=1 python test/functorch/test_eager_transforms.py TestExamplesCorrectnessCPU.test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu

This message can be suppressed by setting PYTORCH_PRINT_REPRO_ON_FAILURE=0
RAW_BUFFERClick to expand / collapse

Platforms: dynamo

This test was disabled because it is failing in CI. See recent examples and the most recent trunk workflow logs.

Over the past 6 hours, it has been determined flaky in 4 workflow(s) with 4 failures and 4 successes.

Debugging instructions (after clicking on the recent samples link): DO NOT ASSUME THINGS ARE OKAY IF THE CI IS GREEN. We now shield flaky tests from developers so CI will thus be green but it will be harder to parse the logs. To find relevant log snippets:

  1. Click on the workflow logs linked above
  2. Click on the Test step of the job so that it is expanded. Otherwise, the grepping will not work.
  3. Grep for test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu
  4. There should be several instances run (as flaky tests are rerun in CI) from which you can study the logs.
<details><summary>Sample error message</summary>
Traceback (most recent call last):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4703
    MLPClassifier().to(device), mechanism
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4724, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725
    func_model, weights = _get_weights_and_functional_call(
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
        frame, cache_entry, self.hooks, frame_state, skip=1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
        frame, cache_entry, hooks, frame_state, skip=skip + 1
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
        frame.f_code,
    ...<16 lines>...
        convert_frame_box=self._box,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1961, in _compile
    guarded_code, tracer_output = compile_inner(code, one_graph, hooks)
                                  ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
        code,
    ...<11 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1478, in compile_frame
    bytecode, tracer_output = transform_code_object(code, transform)
                              ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
        code,
    ...<14 lines>...
        package=package,
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
    ~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4386, in CALL_KW
    self._call(inst, call_kw=True)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4171, in CALL
    self._call(inst)
    ~~~~~~~~~~^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 4162, in _call
    self.call_function(fn, args, kwargs)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/user_defined.py", line 1175, in call_function
    return tx.inline_user_function_return(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        VariableTracker.build(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        kwargs,
        ^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 1669, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 810, in call_function
    return super().call_function(tx, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/functions.py", line 489, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1408, in inline_user_function_return
    return InliningInstructionTranslator.inline_call(self, fn, args, kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5241, in inline_call
    return tracer.inline_call_()
           ~~~~~~~~~~~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 5462, in inline_call_
    self.run()
    ~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
          ~~~~~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 2851, in CALL_FUNCTION_EX
    self.call_function(fn, argsvars.items, kwargsvars)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/symbolic_convert.py", line 1381, in call_function
    self.push(fn.call_function(self, args, kwargs))  # type: ignore[arg-type]
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/lazy.py", line 294, in realize_and_forward
    return getattr(self.realize(), name)(*args, **kwargs)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/torch.py", line 2694, in call_function
    tensor_variable = wrap_fx_proxy(
        tx=tx,
    ...<4 lines>...
        ),
    )
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3084, in wrap_fx_proxy
    return wrap_fx_proxy_cls(target_cls=TensorVariable, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
                       ~~~~~~~~~~~~~~^
        target_cls, tx, proxy, example_value, subclass_type, **options
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/variables/builder.py", line 3283, in _wrap_fx_proxy
    example_value = get_fake_value(proxy.node, tx, allow_non_graph_fake=True)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3751, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3942, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        lambda: unimplemented(
        ^^^^^^^^^^^^^^^^^^^^^^
    ...<5 lines>...
        )
        ^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3740, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3737, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
    ~~~~~^^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/utils.py", line 3943, in <lambda>
    lambda: unimplemented(
            ~~~~~~~~~~~~~^
        gb_type="RuntimeError when making fake tensor call",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        from_exc=cause,
        ^^^^^^^^^^^^^^^
    )
    ^
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
        msg, gb_type, skip_frame, real_stack=past_real_stack
    ) from from_exc
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_function <built-in method empty of type object at 0x7f2552d75b30>(*((32, 16),), **{'device': None, 'dtype': None}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/var/lib/jenkins/workspace/aten/src/ATen/core/PythonFallbackKernel.cpp":53, please report a bug to PyTorch. ')
  Hint: Your code may result in an error when running in eager. Please double check that your code doesn't contain a similar error when actually running eager/uncompiled. You can do this by removing the `torch.compile` call, or by using `torch.compiler.set_stance("force_eager")`. 

  Developer debug context: 

 For more details about this graph break, please visit: https://meta-pytorch.github.io/compile-graph-break-site/gb/gb4315.html

from user code:
   File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4754, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4724
    batched_weights = init_fn(num_models=2)
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4745, in init_fn
    og_model = MLPClassifier().to(device)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/__init__.py", line 424, in instantiate_user_defined_class_object
    obj.__init__(*args, **kwargs)
  File "/var/lib/jenkins/workspace/test/functorch/test_eager_transforms.py", line 4710, in __init__
    self.fc1 = nn.Linear(16, self.hidden_dim)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/_dynamo/polyfills/__init__.py", line 424, in instantiate_user_defined_class_object
    obj.__init__(*args, **kwargs)
  File "/opt/conda/envs/py_3.14/lib/python3.14/site-packages/torch/nn/modules/linear.py", line 109, in __init__
    torch.empty((out_features, in_features), **factory_kwargs)

Set TORCHDYNAMO_VERBOSE=1 for the internal stack trace (please do this especially if you're reporting a bug to PyTorch). For even more developer context, set TORCH_LOGS="+dynamo"


To execute this test, run the following from the base repo dir:
    PYTORCH_TEST_WITH_DYNAMO=1 python test/functorch/test_eager_transforms.py TestExamplesCorrectnessCPU.test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu

This message can be suppressed by setting PYTORCH_PRINT_REPRO_ON_FAILURE=0
</details>

Test file path: functorch/test_eager_transforms.py

For all disabled tests (by GitHub issue), see https://hud.pytorch.org/disabled.

cc @chauhang @penguinwu @Chillee @samdow @kshitij12345

extent analysis

TL;DR

The test test_find_learning_rate_ensembling_Dropout_mechanism_make_functional_cpu is failing due to a TorchRuntimeError caused by Dynamo's failure to run an FX node with fake tensors.

Guidance

  1. Review the error message: The error occurs when creating a Linear layer in the MLPClassifier model, specifically when calling torch.empty to initialize the layer's weights.
  2. Check the device and dtype: The error message mentions that the device and dtype are None, which might be causing the issue. Ensure that the device and dtype are properly set before creating the Linear layer.
  3. Try running the test in eager mode: The error message suggests running the test in eager mode by removing the torch.compile call or using torch.compiler.set_stance("force_eager") to see if the issue persists.
  4. Set TORCHDYNAMO_VERBOSE=1 for more information: This will provide a more detailed internal stack trace, which can help identify the root cause of the issue.
  5. Check the graph break site: The error message provides a link to a graph break site, which may contain more information about the issue.

Example

No code example is provided as the issue is related to a specific test case and requires more context to reproduce.

Notes

The issue seems to be related to the interaction between Dynamo and the Linear layer in the MLPClassifier model. Further investigation is needed to determine the root cause of the issue.

Recommendation

Apply a workaround by running the test in eager mode or setting TORCHDYNAMO_VERBOSE=1 to gather more information about the issue. This will help identify the root cause and potentially lead to a fix.

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