Created by: liucc09

1）PaddlePaddle版本：1.7.2 2）GPU：aistudio上的GPU

在训练时莫名其妙报如下错误，aistudio notebook地址：https://aistudio.baidu.com/aistudio/projectdetail/540958 版本1

terminate called after throwing an instance of 'pybind11::error_already_set' what(): TypeError: repr returned non-string (type NoneType) W0612 23:55:16.203984 128 init.cc:209] Warning: PaddlePaddle catches a failure signal, it may not work properly W0612 23:55:16.204010 128 init.cc:211] You could check whether you killed PaddlePaddle thread/process accidentally or report the case to PaddlePaddle W0612 23:55:16.204015 128 init.cc:214] The detail failure signal is:

W0612 23:55:16.204020 128 init.cc:217] *** Aborted at 1591977316 (unix time) try "date -d @1591977316" if you are using GNU date *** W0612 23:55:16.205726 128 init.cc:217] PC: @ 0x0 (unknown) W0612 23:55:16.205821 128 init.cc:217] *** SIGABRT (@0x3e800000080) received by PID 128 (TID 0x7fb8652df700) from PID 128; stack trace: *** W0612 23:55:16.207077 128 init.cc:217] @ 0x7fb864ec6390 (unknown) W0612 23:55:16.208257 128 init.cc:217] @ 0x7fb864b20428 gsignal W0612 23:55:16.209399 128 init.cc:217] @ 0x7fb864b2202a abort W0612 23:55:16.210263 128 init.cc:217] @ 0x7fb824a6b84a __gnu_cxx::__verbose_terminate_handler() W0612 23:55:16.210999 128 init.cc:217] @ 0x7fb824a69f47 __cxxabiv1::__terminate() W0612 23:55:16.211802 128 init.cc:217] @ 0x7fb824a69f7d std::terminate() W0612 23:55:17.045090 128 init.cc:217] @ 0x7fb824a6a15a __cxa_throw W0612 23:55:17.046548 128 init.cc:217] @ 0x7fb7fcb92808 pybind11::cpp_function::dispatcher() W0612 23:55:17.046945 128 init.cc:217] @ 0x56201607b744 _PyMethodDef_RawFastCallKeywords W0612 23:55:17.047227 128 init.cc:217] @ 0x56201607b861 _PyCFunction_FastCallKeywords W0612 23:55:17.047458 128 init.cc:217] @ 0x5620160e72bd _PyEval_EvalFrameDefault W0612 23:55:17.047665 128 init.cc:217] @ 0x56201602c56b _PyFunction_FastCallDict W0612 23:55:17.047874 128 init.cc:217] @ 0x56201604ae53 _PyObject_Call_Prepend W0612 23:55:17.048099 128 init.cc:217] @ 0x56201603ddbe PyObject_Call W0612 23:55:17.048318 128 init.cc:217] @ 0x5620160e4232 _PyEval_EvalFrameDefault W0612 23:55:17.048524 128 init.cc:217] @ 0x56201602b539 _PyEval_EvalCodeWithName W0612 23:55:17.048727 128 init.cc:217] @ 0x56201602c635 _PyFunction_FastCallDict W0612 23:55:17.048934 128 init.cc:217] @ 0x56201604ae53 _PyObject_Call_Prepend W0612 23:55:17.049046 128 init.cc:217] @ 0x562016082a3a slot_tp_call W0612 23:55:17.049247 128 init.cc:217] @ 0x5620160838fb _PyObject_FastCallKeywords W0612 23:55:17.049466 128 init.cc:217] @ 0x5620160e76e8 _PyEval_EvalFrameDefault W0612 23:55:17.049669 128 init.cc:217] @ 0x56201602c56b _PyFunction_FastCallDict W0612 23:55:17.049873 128 init.cc:217] @ 0x56201604ae53 _PyObject_Call_Prepend W0612 23:55:17.050096 128 init.cc:217] @ 0x56201603ddbe PyObject_Call W0612 23:55:17.050314 128 init.cc:217] @ 0x5620160e4232 _PyEval_EvalFrameDefault W0612 23:55:17.050516 128 init.cc:217] @ 0x56201602b539 _PyEval_EvalCodeWithName W0612 23:55:17.050719 128 init.cc:217] @ 0x56201602c635 _PyFunction_FastCallDict W0612 23:55:17.050923 128 init.cc:217] @ 0x56201604ae53 _PyObject_Call_Prepend W0612 23:55:17.051034 128 init.cc:217] @ 0x562016082a3a slot_tp_call W0612 23:55:17.051247 128 init.cc:217] @ 0x5620160838fb _PyObject_FastCallKeywords W0612 23:55:17.051466 128 init.cc:217] @ 0x5620160e6e86 _PyEval_EvalFrameDefault W0612 23:55:17.051671 128 init.cc:217] @ 0x56201602c56b _PyFunction_FastCallDict Aborted (core dumped)