pytorch - ✅(Solved) Fix DISABLED test_find_learning_rate_ensembling_Dropout_mechanism_functional_call_cpu (__main__.TestExamplesCorrectnessCPU) [1 pull requests, 2 comments, 1 participants]

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pytorch/pytorch#180336Fetched 2026-04-16 06:35:21
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Error Message

Traceback (most recent call last): File "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling class MLPClassifier(nn.Module): File "/__w/pytorch/pytorch/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 "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2474, in call result = self._torchdynamo_orig_backend( File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2192, in call result = self._inner_convert( File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 736, in call result = _compile( File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_utils_internal.py", line 96, in wrapper_function return function(*args, **kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner result = _compile_inner(code, one_graph, hooks) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner dynamo_output = compile_frame( File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object tracer_output = transformations(instructions, code_options) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform tracer_output = trace_frame( File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn return fn(*args, **kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame run_tracer() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer tracer.run() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION self.call_function(fn, args, {}) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5242, in inline_call return tracer.inline_call() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5463, in inline_call self.run() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION self.call_function(fn, args, {}) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5242, in inline_call return tracer.inline_call() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5463, in inline_call self.run() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION self.call_function(fn, args, {}) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function return super().call_function(tx, args, kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs) # type: ignore[attr-defined] File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5242, in inline_call return tracer.inline_call() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5463, in inline_call self.run() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION self.call_function(fn, args, {}) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function return tx.inline_user_function_return(self, [*self.self_args(), args], kwargs) # type: ignore[attr-defined] File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5242, in inline_call return tracer.inline_call() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/dynamo/symbolic_convert.py", line 5463, in inline_call self.run() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run while self.step(): File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step self.dispatch_table[inst.opcode](self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper return inner_fn(self, inst) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION self.call_function(fn, args, {}) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/misc.py", line 1354, in call_function return self.obj.call_method(tx, self.name, list(args), kwargs) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/tensor.py", line 970, in call_method result = wrap_fx_proxy(tx, proxy) File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls out: VTTypeAlias = _wrap_fx_proxy( File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3752, in get_fake_value return _get_fake_value_impl(node, tx, allow_non_graph_fake) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3943, in _get_fake_value_impl _wrap_graph_break_with_torch_runtime_err( File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3741, in _wrap_graph_break_with_torch_runtime_err raise exc.with_traceback(e.traceback) from None File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3738, in _wrap_graph_break_with_torch_runtime_err gb_fn() File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3944, in <lambda> lambda: unimplemented( File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented raise Unsupported( torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call Explanation: Dynamo failed to run FX node with fake tensors: call_method to((Parameter(FakeTensor(..., size=(32, 16), requires_grad=True)), device(type='cpu'), None, False), **{}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/__w/pytorch/pytorch/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 "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725 MLPClassifier().to(device), mechanism File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1383, in to return self._apply(convert) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 933, in _apply module._apply(fn) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 964, in _apply param_applied = fn(param) File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1369, in convert return t.to(

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_functional_call_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 "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/__w/pytorch/pytorch/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 "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/misc.py", line 1354, in call_function
    return self.obj.call_method(tx, self.name, list(args), kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/tensor.py", line 970, in call_method
    result = wrap_fx_proxy(tx, proxy)
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3752, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3943, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3741, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3738, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3944, in <lambda>
    lambda: unimplemented(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_method to(*(Parameter(FakeTensor(..., size=(32, 16), requires_grad=True)), device(type='cpu'), None, False), **{}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/__w/pytorch/pytorch/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")`.

PR fix notes

PR #180636: [dynamo] restore Python dispatch TLS across graph breaks

Description (problem / solution / changelog)

Stack from ghstack (oldest at bottom):

  • -> #180636

Fix a flaky functorch+dynamo failure where Python fallback can be entered without a valid TLS snapshot, or with Python dispatch TLS leaked past the compiled frame. Use MaybeSetTLSOnEntryGuard in Python fallback, and restore the saved dispatch TLS around the compiled call so later eager ops like assertEqual/isclose/module setup do not trip the same failure after a graph break.

Add a regression test covering the graph-break path that previously left Python=True and PythonTLSSnapshot=False in local dispatch TLS.

This appears related to the flaky test disables in #180299, #180300, #180320, #180321, #180322, #180336, #180337, and likely the same failure family as #180436, #180555, #180590, #180591, and #180592. Though I could not repro any of them locally.

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @kadeng @chauhang @amjames @Lucaskabela @jataylo @azahed98

Changed files

  • aten/src/ATen/core/PythonFallbackKernel.cpp (modified, +1/-1)
  • test/dynamo/test_error_messages.py (modified, +12/-0)
  • test/dynamo/test_python_dispatcher.py (modified, +29/-0)
  • torch/_dynamo/eval_frame.py (modified, +46/-39)

Code Example

Traceback (most recent call last):
  File "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/__w/pytorch/pytorch/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 "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/misc.py", line 1354, in call_function
    return self.obj.call_method(tx, self.name, list(args), kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/tensor.py", line 970, in call_method
    result = wrap_fx_proxy(tx, proxy)
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3752, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3943, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3741, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3738, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3944, in <lambda>
    lambda: unimplemented(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_method to(*(Parameter(FakeTensor(..., size=(32, 16), requires_grad=True)), device(type='cpu'), None, False), **{}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/__w/pytorch/pytorch/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 "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725
    MLPClassifier().to(device), mechanism
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1383, in to
    return self._apply(convert)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 933, in _apply
    module._apply(fn)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 964, in _apply
    param_applied = fn(param)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1369, in convert
    return t.to(

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_functional_call_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 8 workflow(s) with 8 failures and 8 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_functional_call_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 "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4703, in test_find_learning_rate_ensembling
    class MLPClassifier(nn.Module):
  File "/__w/pytorch/pytorch/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 "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2474, in __call__
    result = self._torchdynamo_orig_backend(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 2192, in __call__
    result = self._inner_convert(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 736, in __call__
    result = _compile(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_utils_internal.py", line 96, in wrapper_function
    return function(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1571, in compile_inner
    result = _compile_inner(code, one_graph, hooks)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1630, in _compile_inner
    dynamo_output = compile_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/bytecode_transformation.py", line 1626, in transform_code_object
    tracer_output = transformations(instructions, code_options)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 1450, in transform
    tracer_output = trace_frame(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 343, in _fn
    return fn(*args, **kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 911, in trace_frame
    run_tracer()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py", line 892, in run_tracer
    tracer.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 1674, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 815, in call_function
    return super().call_function(tx, args, kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/functions.py", line 494, in call_function
    return tx.inline_user_function_return(self, [*self.self_args(), *args], kwargs)  # type: ignore[attr-defined]
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5242, in inline_call
    return tracer.inline_call_()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 5463, in inline_call_
    self.run()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1813, in run
    while self.step():
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1480, in step
    self.dispatch_table[inst.opcode](self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 1017, in wrapper
    return inner_fn(self, inst)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py", line 2787, in CALL_FUNCTION
    self.call_function(fn, args, {})
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/misc.py", line 1354, in call_function
    return self.obj.call_method(tx, self.name, list(args), kwargs)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/tensor.py", line 970, in call_method
    result = wrap_fx_proxy(tx, proxy)
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/variables/builder.py", line 3159, in wrap_fx_proxy_cls
    out: VTTypeAlias = _wrap_fx_proxy(
  File "/opt/conda/envs/py_3.10/lib/python3.10/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_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3752, in get_fake_value
    return _get_fake_value_impl(node, tx, allow_non_graph_fake)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3943, in _get_fake_value_impl
    _wrap_graph_break_with_torch_runtime_err(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3741, in _wrap_graph_break_with_torch_runtime_err
    raise exc.with_traceback(e.__traceback__) from None
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3738, in _wrap_graph_break_with_torch_runtime_err
    gb_fn()
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/utils.py", line 3944, in <lambda>
    lambda: unimplemented(
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/_dynamo/exc.py", line 653, in unimplemented
    raise Unsupported(
torch._dynamo.exc.TorchRuntimeError: RuntimeError when making fake tensor call
  Explanation: Dynamo failed to run FX node with fake tensors: call_method to(*(Parameter(FakeTensor(..., size=(32, 16), requires_grad=True)), device(type='cpu'), None, False), **{}): got RuntimeError('tls_on_entry.has_value() INTERNAL ASSERT FAILED at "/__w/pytorch/pytorch/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 "/__w/pytorch/pytorch/test/functorch/test_eager_transforms.py", line 4725, in torch_dynamo_resume_in_test_find_learning_rate_ensembling_at_4725
    MLPClassifier().to(device), mechanism
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1383, in to
    return self._apply(convert)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 933, in _apply
    module._apply(fn)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 964, in _apply
    param_applied = fn(param)
  File "/opt/conda/envs/py_3.10/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1369, in convert
    return t.to(

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_functional_call_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_functional_call_cpu is failing due to a TorchRuntimeError caused by Dynamo failing to run an FX node with fake tensors, and the issue may be related to the use of torch.compile or eager mode.

Guidance

  • To debug this issue, try removing the torch.compile call or using torch.compiler.set_stance("force_eager") to run the code in eager mode.
  • Set TORCHDYNAMO_VERBOSE=1 to get the internal stack trace, which may provide more information about the error.
  • Set TORCH_LOGS="+dynamo" to get more developer context.
  • Run the test with PYTORCH_TEST_WITH_DYNAMO=1 python test/functorch/test_eager_transforms.py TestExamplesCorrectnessCPU.test_find_learning_rate_ensembling_Dropout_mechanism_functional_call_cpu to reproduce the error.

Example

No specific code example is provided, but the error message suggests that the issue is related to the MLPClassifier().to(device) line in the test_eager_transforms.py file.

Notes

The error message provides a link to a graph break site (https://meta-pytorch.github.io/compile-graph-break-site/gb/gb4315.html) that may provide more information about the issue. The test is disabled due to flakiness, and the error message suggests that the issue may be related to the use of torch.compile or eager mode.

Recommendation

Apply a workaround by removing the torch.compile call or using torch.compiler.set_stance("force_eager") to run the code in eager mode, as suggested by the error message. This may help to identify the root cause of the issue and provide more information for debugging.

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