Repository: pytorch
Issue: [Export] Mutating module attribute error during export on YOLOX
Labels: oncall: export

### 🐛 Describe the bug

Bug: I met `AssertionError: Mutating module attribute hw during export` error during export the yolox_head module in [YOLOX](https://github.com/Megvii-BaseDetection/YOLOX) model. 

Here is the minimal reproducer:
```
import torch

yolox_head_out = [torch.rand(1, 85, 80, 80), torch.rand(1, 85, 40, 40), torch.rand(1, 85, 20, 20)]

class Model(torch.nn.Module):
    def __init__(self):
        super().__init__()

    def forward(self, yolox_head_out):
        outputs = yolox_head_out
        self.hw = [x.shape[-2:] for x in outputs]
        outputs = torch.cat(
            [x.flatten(start_dim=2) for x in outputs], dim=2
        ).permute(0, 2, 1)

model = Model()

# Capture the FX Graph to be quantized
with torch.no_grad():
    #exported_model = torch._export.capture_pre_autograd_graph(model, (yolox_head_out,))
    exported_model = torch.export.export(model, (yolox_head_out,))
```

Full traceback:
```
Traceback (most recent call last):
  File "/home/wangk2/YOLOX/tools/demo_quant-pt2e_reproducer.py", line 21, in <module>
    exported_model = torch.export.export(model, (yolox_head_out,))
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/__init__.py", line 174, in export
    return _export(
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/_trace.py", line 635, in wrapper
    raise e
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/_trace.py", line 618, in wrapper
    ep = fn(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/exported_program.py", line 83, in wrapper
    return fn(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/_trace.py", line 860, in _export
    gm_torch_level = _export_to_torch_ir(
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/export/_trace.py", line 347, in _export_to_torch_ir
    gm_torch_level, _ = torch._dynamo.export(
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/eval_frame.py", line 1311, in inner
    result_traced = opt_f(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl
    return forward_call(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/eval_frame.py", line 451, in _fn
    return fn(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl
    return forward_call(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 921, in catch_errors
    return callback(frame, cache_entry, hooks, frame_state, skip=1)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 400, in _convert_frame_assert
    return _compile(
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/contextlib.py", line 79, in inner
    return func(*args, **kwds)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 676, in _compile
    guarded_code = compile_inner(code, one_graph, hooks, transform)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/utils.py", line 262, in time_wrapper
    r = func(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 535, in compile_inner
    out_code = transform_code_object(code, transform)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/bytecode_transformation.py", line 1036, in transform_
code_object
    transformations(instructions, code_options)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 165, in _fn
    return fn(*args, **kwargs)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/convert_frame.py", line 500, in transform
    tracer.run()
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/symbolic_convert.py", line 2149, in run
    super().run()
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/symbolic_convert.py", line 810, in run
    and self.step()
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/symbolic_convert.py", line 773, in step
    getattr(self, inst.opname)(inst)
  File "/home/wangk2/miniforge3/envs/yolox-megvii/lib/python3.9/site-packages/torch/_dynamo/symbolic_convert.py", line 1325, in STORE_ATTR
    assert (
AssertionError: Mutating module attribute hw during export.

from user code:
   File "/home/wangk2/YOLOX/tools/demo_quant-pt2e_reproducer.py", line 11, in forward
    self.hw = [x.shape[-2:] for x in outputs]

Set TORCH_LOGS="+dynamo" and TORCHDYNAMO_VERBOSE=1 for more information
```


### Versions

```
Collecting environment information...
PyTorch version: 2.3.1+cpu
Is debug build: False
CUDA used to build PyTorch: None
ROCM used to build PyTorch: N/A

OS: Ubuntu 22.04.3 LTS (x86_64)
GCC version: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Clang version: Could not collect
CMake version: version 3.22.1
Libc version: glibc-2.35

Python version: 3.9.19 | packaged by conda-forge | (main, Mar 20 2024, 12:50:21)  [GCC 12.3.0] (64-bit runtime)
Python platform: Linux-5.15.0-112-generic-x86_64-with-glibc2.35
Is CUDA available: False
CUDA runtime version: No CUDA
CUDA_MODULE_LOADING set to: N/A
GPU models and configuration: No CUDA
Nvidia driver version: No CUDA
cuDNN version: No CUDA
HIP runtime version: N/A
MIOpen runtime version: N/A
Is XNNPACK available: True

CPU:
Architecture:                       x86_64
CPU op-mode(s):                     32-bit, 64-bit
Address sizes:                      46 bits physical, 57 bits virtual
Byte Order:                         Little Endian
CPU(s):                             224
On-line CPU(s) list:                0-223
Vendor ID:                          GenuineIntel
Model name:                         Intel(R) Xeon(R) Platinum 8480+
CPU family:                         6
Model:                              143
Thread(s) per core:                 2
Core(s) per socket:                 56
Socket(s):                          2
Stepping:                           6
Frequency boost:                    enabled
CPU max MHz:                        2001.0000
CPU min MHz:                        800.0000
BogoMIPS:                           4000.00
Flags:                              fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l3 invpcid_single cdp_l2 ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities
Virtualization:                     VT-x
L1d cache:                          5.3 MiB (112 instances)
L1i cache:                          3.5 MiB (112 instances)
L2 cache:                           224 MiB (112 instances)
L3 cache:                           210 MiB (2 instances)
NUMA node(s):                       2
NUMA node0 CPU(s):                  0-55,112-167
NUMA node1 CPU(s):                  56-111,168-223
Vulnerability Gather data sampling: Not affected
Vulnerability Itlb multihit:        Not affected
Vulnerability L1tf:                 Not affected
Vulnerability Mds:                  Not affected
Vulnerability Meltdown:             Not affected
Vulnerability Mmio stale data:      Not affected
Vulnerability Retbleed:             Not affected
Vulnerability Spec rstack overflow: Not affected
Vulnerability Spec store bypass:    Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1:           Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:           Mitigation; Enhanced IBRS; IBPB conditional; RSB filling; PBRSB-eIBRS SW sequence; BHI BHI_DIS_S
Vulnerability Srbds:                Not affected
Vulnerability Tsx async abort:      Not affected

Versions of relevant libraries:
[pip3] numpy==1.25.2
[pip3] torch==2.3.1+cpu
[pip3] torchvision==0.18.1+cpu
[conda] numpy                     1.25.2                   pypi_0    pypi
[conda] torch                     2.3.1+cpu                pypi_0    pypi
[conda] torchvision               0.18.1+cpu               pypi_0    pypi
```

cc @avikchaudhuri @gmagogsfm @zhxchen17 @tugsbayasgalan @angelayi @suo @ydwu4 @penguinwu