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[Bug]: minicpmv2.6 BNB in-flight quantization error #9914

@jeejeelee

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@jeejeelee

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Model Input Dumps

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🐛 Describe the bug

After merging #9891 , I tried the in-flight quantization with minicpmv and encountered the following error:

[rank0]:   File "/vllm/vllm/model_executor/model_loader/loader.py", line 1105, in _load_weights
[rank0]:     model.load_weights(qweight_iterator)
[rank0]:   File "/vllm/vllm/model_executor/models/minicpmv.py", line 634, in load_weights
[rank0]:     param = params_dict[name]
[rank0]: KeyError: 'vpm.encoder.layers.0.mlp.fc1.weight'
Loading safetensors checkpoint shards:   0% Completed | 0/4 [00:00<?, ?it/s]

Reproduce code

MODEL_NAME = "openbmb/MiniCPM-V-2_6"
llm = LLM(
    model=MODEL_NAME,
    trust_remote_code=True,
    tensor_parallel_size=1,
    gpu_memory_utilization=0.7,
    quantization="bitsandbytes",
    load_format="bitsandbytes",
)

It seems mllama has the same issue. cc @mgoin

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