在AIStudio跑自己的数据集，dataloader设置为0时报错这个

2021-07-23 16:04:28,904 INFO ('n_thread', 1)
2021-07-23 16:04:28,904 INFO ('epoch', 200)
2021-07-23 16:04:28,904 INFO ('train_path', 'PaddleCV_EffV1Mul/datasets/train.txt')
2021-07-23 16:04:28,904 INFO ('val_path', 'PaddleCV_EffV1Mul/datasets/val.txt')
2021-07-23 16:04:28,904 INFO ('model_path', 'PaddleCV_EffV1Mul/model_save')
2021-07-23 16:04:28,904 INFO ('pre_train_model1', 'PaddleCV_EffV1Mul/EfficientNetB0_pretrained')
2021-07-23 16:04:28,904 INFO ('pre_train_model2', 'PaddleCV_EffV1Mul/EfficientNetB0_pretrained')
2021-07-23 16:04:28,904 INFO ('epoch:', 1, 'begin_train')
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/tensor/creation.py:125: DeprecationWarning: `np.object` is a deprecated alias for the builtin `object`. To silence this warning, use `object` by itself. Doing this will not modify any behavior and is safe.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
if data.dtype == np.object:

--------------------------------------
C++ Traceback (most recent call last):
--------------------------------------
0 std::thread::_Impl >::_M_run()
1 std::__future_base::_State_baseV2::_M_do_set(std::function ()>*, bool*)
2 paddle::framework::SignalHandle(char const*, int)
3 paddle::platform::GetCurrentTraceBackString[abi:cxx11]()

----------------------
Error Message Summary:
----------------------
FatalError: `Segmentation fault` is detected by the operating system.
[TimeInfo: *** Aborted at 1627027469 (unix time) try "date -d @1627027469" if you are using GNU date ***]
[SignalInfo: *** SIGSEGV (@0x0) received by PID 3027 (TID 0x7ff9ab230700) from PID 0 ***]

Segmentation fault (core dumped)

num_worker设置为1也不行，设置为2时能跑，但是我设置的200个epoch跑到第八个的时候，报错/dev/shm空间溢出，这一块分配内存过小。