asyncio.exceptions.CancelledError: Cancelled by cancel scope 7ff8e1413eb0

### Checklist

- [x] 1. I have searched related issues but cannot get the expected help.
- [x] 2. The bug has not been fixed in the latest version.
- [x] 3. Please note that if the bug-related issue you submitted lacks corresponding environment info and a minimal reproducible demo, it will be challenging for us to reproduce and resolve the issue, reducing the likelihood of receiving feedback.

### Describe the bug

运行一段时间发现有这个错误提示:
2025-03-11 10:04:00,086 - lmdeploy - ERROR - async_engine.py:777 - session 630 finished, reason "error"
ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 268, in __call__
await wrap(partial(self.listen_for_disconnect, receive))
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 264, in wrap
await func()
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 233, in listen_for_disconnect
message = await receive()
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 531, in receive
await self.message_event.wait()
File "/root/anaconda3/envs/sf/lib/python3.10/asyncio/locks.py", line 214, in wait
await fut
asyncio.exceptions.CancelledError: Cancelled by cancel scope 7ff8e1413eb0

During handling of the above exception, another exception occurred:

+ Exception Group Traceback (most recent call last):
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
| result = await app( # type: ignore[func-returns-value]
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
| return await self.app(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/fastapi/applications.py", line 1054, in __call__
| await super().__call__(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/applications.py", line 112, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/errors.py", line 187, in __call__
| raise exc
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/errors.py", line 165, in __call__
| await self.app(scope, receive, _send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/cors.py", line 85, in __call__
| await self.app(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
| await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| raise exc
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
| await app(scope, receive, sender)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 715, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 735, in app
| await route.handle(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 288, in handle
| await self.app(scope, receive, send)

### Reproduction

(sf) root@com1:~# CUDA_VISIBLE_DEVICES=0,2 lmdeploy serve api_server /models/DeepSeek-R1-Distill-Llama-70B/ --server-name 0.0.0.0 --server-port 6789 --model-name DeepSeek-R1-Distill-70B --cache-max-entry-count=0.5 --tp 2

### Environment

```Shell
(sf) root@com1:~# lmdeploy check_env
sys.platform: linux
Python: 3.10.16 (main, Dec 11 2024, 16:24:50) [GCC 11.2.0]
CUDA available: True
MUSA available: False
numpy_random_seed: 2147483648
GPU 0: NVIDIA A100 80GB PCIe
CUDA_HOME: /usr/local/cuda
NVCC: Cuda compilation tools, release 11.8, V11.8.89
GCC: gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
PyTorch: 2.5.1+cu124
PyTorch compiling details: PyTorch built with:
- GCC 9.3
- C++ Version: 201703
- Intel(R) oneAPI Math Kernel Library Version 2024.2-Product Build 20240605 for Intel(R) 64 architecture applications
- Intel(R) MKL-DNN v3.5.3 (Git Hash 66f0cb9eb66affd2da3bf5f8d897376f04aae6af)
- OpenMP 201511 (a.k.a. OpenMP 4.5)
- LAPACK is enabled (usually provided by MKL)
- NNPACK is enabled
- CPU capability usage: AVX512
- CUDA Runtime 12.4
- NVCC architecture flags: -gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_70,code=sm_70;-gencode;arch=compute_75,code=sm_75;-gencode;arch=compute_80,code=sm_80;-gencode;arch=compute_86,code=sm_86;-gencode;arch=compute_90,code=sm_90
- CuDNN 90.1
- Magma 2.6.1
- Build settings: BLAS_INFO=mkl, BUILD_TYPE=Release, CUDA_VERSION=12.4, CUDNN_VERSION=9.1.0, CXX_COMPILER=/opt/rh/devtoolset-9/root/usr/bin/c++, CXX_FLAGS= -D_GLIBCXX_USE_CXX11_ABI=0 -fabi-version=11 -fvisibility-inlines-hidden -DUSE_PTHREADPOOL -DNDEBUG -DUSE_KINETO -DLIBKINETO_NOROCTRACER -DLIBKINETO_NOXPUPTI=ON -DUSE_FBGEMM -DUSE_PYTORCH_QNNPACK -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -O2 -fPIC -Wall -Wextra -Werror=return-type -Werror=non-virtual-dtor -Werror=bool-operation -Wnarrowing -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-unused-parameter -Wno-strict-overflow -Wno-strict-aliasing -Wno-stringop-overflow -Wsuggest-override -Wno-psabi -Wno-error=old-style-cast -Wno-missing-braces -fdiagnostics-color=always -faligned-new -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-math-errno -fno-trapping-math -Werror=format -Wno-stringop-overflow, LAPACK_INFO=mkl, PERF_WITH_AVX=1, PERF_WITH_AVX2=1, TORCH_VERSION=2.5.1, USE_CUDA=ON, USE_CUDNN=ON, USE_CUSPARSELT=1, USE_EXCEPTION_PTR=1, USE_GFLAGS=OFF, USE_GLOG=OFF, USE_GLOO=ON, USE_MKL=ON, USE_MKLDNN=ON, USE_MPI=OFF, USE_NCCL=1, USE_NNPACK=ON, USE_OPENMP=ON, USE_ROCM=OFF, USE_ROCM_KERNEL_ASSERT=OFF,

TorchVision: 0.20.1+cu124
LMDeploy: 0.7.0.post3+
transformers: 4.49.0
gradio: Not Found
fastapi: 0.115.8
pydantic: 2.10.6
triton: 3.1.0
NVIDIA Topology:
GPU0 GPU1 GPU2 GPU3 CPU Affinity NUMA Affinity GPU NUMA ID
GPU0 X NV12 PHB PHB 0-31 0 N/A
GPU1 NV12 X PHB PHB 0-31 0 N/A
GPU2 PHB PHB X NV12 0-31 0 N/A
GPU3 PHB PHB NV12 X 0-31 0 N/A

Legend:

X = Self
SYS = Connection traversing PCIe as well as the SMP interconnect between NUMA nodes (e.g., QPI/UPI)
NODE = Connection traversing PCIe as well as the interconnect between PCIe Host Bridges within a NUMA node
PHB = Connection traversing PCIe as well as a PCIe Host Bridge (typically the CPU)
PXB = Connection traversing multiple PCIe bridges (without traversing the PCIe Host Bridge)
PIX = Connection traversing at most a single PCIe bridge
NV# = Connection traversing a bonded set of # NVLinks
```

### Error traceback

```Shell
2025-03-16 11:35:34,713 - lmdeploy - ERROR - async_engine.py:777 - session 734 finished, reason "error"
ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 268, in __call__
await wrap(partial(self.listen_for_disconnect, receive))
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 264, in wrap
await func()
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/responses.py", line 233, in listen_for_disconnect
message = await receive()
File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 531, in receive
await self.message_event.wait()
File "/root/anaconda3/envs/sf/lib/python3.10/asyncio/locks.py", line 214, in wait
await fut
asyncio.exceptions.CancelledError: Cancelled by cancel scope 7ff8e13d5cc0

During handling of the above exception, another exception occurred:

+ Exception Group Traceback (most recent call last):
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
| result = await app( # type: ignore[func-returns-value]
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
| return await self.app(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/fastapi/applications.py", line 1054, in __call__
| await super().__call__(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/applications.py", line 112, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/errors.py", line 187, in __call__
| raise exc
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/errors.py", line 165, in __call__
| await self.app(scope, receive, _send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/cors.py", line 85, in __call__
| await self.app(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
| await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| raise exc
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
| await app(scope, receive, sender)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 715, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 735, in app
| await route.handle(scope, receive, send)
| File "/root/anaconda3/envs/sf/lib/python3.10/site-packages/starlette/routing.py", line 288, in handle
| await self.app(scope, receive, send)
```