有无大佬知道这种报错是什么情况，我在AIstudio调用paddleseg的train函数时，data reader抛出异常，具体异常如下：

抛出异常的文字信息如下：

W0309 21:39:13.212985   469 device_context.cc:362] Please NOTE: device: 0, GPU Compute Capability: 7.0, Driver API Version: 11.0, Runtime API Version: 10.1
W0309 21:39:13.213114   469 device_context.cc:372] device: 0, cuDNN Version: 7.6.
2021-03-09 21:39:17,590 - WARNING - DataLoader reader thread raised an exception.
Traceback (most recent call last):
  File "PaddleSeg/train.py", line 154, in 
    main(args)
  File "PaddleSeg/train.py", line 149, in main
    keep_checkpoint_max=args.keep_checkpoint_max)
  File "/home/aistudio/PaddleSeg/paddleseg/core/train.py", line 132, in train
    for data in loader:
  File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/dataloader/dataloader_iter.py", line 351, in __next__
    return self._reader.read_next_var_list()
SystemError: (Fatal) Blocking queue is killed because the data reader raises an exception.
  [Hint: Expected killed_ != true, but received killed_:1 == true:1.] (at /paddle/paddle/fluid/operators/reader/blocking_queue.h:158)