eric-haibin-lin opened a new issue #16102: Usability degradation URL: https://github.com/apache/incubator-mxnet/issues/16102 ``` >>> pip install mxnet==1.6.0b20190821 ➜ gluon-nlp git:(allow) ✗ python -c 'import mxnet as mx; a = mx.np.ones((10,)); print(a.reshape((1,)))' Traceback (most recent call last): File "<string>", line 1, in <module> File "/Users/haibilin/miniconda3/lib/python3.7/site-packages/mxnet/numpy/multiarray.py", line 637, in reshape return _mx_np_op.reshape(self, newshape=args[0], order=order) File "<string>", line 39, in reshape File "/Users/haibilin/miniconda3/lib/python3.7/site-packages/mxnet/_ctypes/ndarray.py", line 100, in _imperative_invoke ctypes.byref(out_stypes))) File "/Users/haibilin/miniconda3/lib/python3.7/site-packages/mxnet/base.py", line 254, in check_call raise MXNetError(py_str(_LIB.MXGetLastError())) mxnet.base.MXNetError: [10:26:08] src/operator/numpy/np_matrix_op.cc:111: Check failed: src.Size() == dst->Size() (10 vs. 1) : Cannot reshape array of size 10 into shape [1] Stack trace: [bt] (0) 1 libmxnet.so 0x000000010e98a649 mxnet::op::NDArrayOpProp::~NDArrayOpProp() + 4473 [bt] (1) 2 libmxnet.so 0x000000010f397f61 mxnet::op::FullyConnectedComputeExCPU(nnvm::NodeAttrs const&, mxnet::OpContext const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&, std::__1::vector<mxnet::OpReqType, std::__1::allocator<mxnet::OpReqType> > const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&) + 6826753 [bt] (2) 3 libmxnet.so 0x000000010f39854f mxnet::op::FullyConnectedComputeExCPU(nnvm::NodeAttrs const&, mxnet::OpContext const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&, std::__1::vector<mxnet::OpReqType, std::__1::allocator<mxnet::OpReqType> > const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&) + 6828271 [bt] (3) 4 libmxnet.so 0x00000001103aa79f mxnet::imperative::SetShapeType(mxnet::Context const&, nnvm::NodeAttrs const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, mxnet::DispatchMode*) + 1583 [bt] (4) 5 libmxnet.so 0x00000001103a929c mxnet::Imperative::Invoke(mxnet::Context const&, nnvm::NodeAttrs const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&) + 716 [bt] (5) 6 libmxnet.so 0x00000001102eadbe SetNDInputsOutputs(nnvm::Op const*, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> >*, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> >*, int, void* const*, int*, int, int, void***) + 1582 [bt] (6) 7 libmxnet.so 0x00000001102ebb00 MXImperativeInvokeEx + 176 [bt] (7) 8 libffi.6.dylib 0x00000001077f8884 ffi_call_unix64 + 76 ``` But recent build hides error messages: ``` ➜ gluon-nlp git:(allow) ✗ pip install mxnet==1.6.0b20190822 ➜ gluon-nlp git:(allow) ✗ python -c 'import mxnet as mx; a = mx.np.ones((10,)); print(a.reshape((1,)))' Segmentation fault: 11 Stack trace: [bt] (0) 1 libmxnet.so 0x000000011255cdb0 mxnet::Storage::Get() + 7968 [bt] (1) 2 libsystem_platform.dylib 0x00007fffb27a7b3a _sigtramp + 26 [bt] (2) 3 ??? 0x3419c9fe3dc10094 0x0 + 3754253858184954004 [bt] (3) 4 libmxnet.so 0x000000011270c1d6 mxnet::Storage::Get() + 1774406 [bt] (4) 5 libmxnet.so 0x0000000110109dee std::__1::__tree<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, mxnet::NDArrayFunctionReg*>, std::__1::__map_value_compare<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, mxnet::NDArrayFunctionReg*>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, true>, std::__1::allocator<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, mxnet::NDArrayFunctionReg*> > >::destroy(std::__1::__tree_node<std::__1::__value_type<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, mxnet::NDArrayFunctionReg*>, void*>*) + 1822 [bt] (5) 6 libmxnet.so 0x0000000110e91c61 mxnet::op::FullyConnectedComputeExCPU(nnvm::NodeAttrs const&, mxnet::OpContext const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&, std::__1::vector<mxnet::OpReqType, std::__1::allocator<mxnet::OpReqType> > const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&) + 10335393 [bt] (6) 7 libmxnet.so 0x0000000110e9224f mxnet::op::FullyConnectedComputeExCPU(nnvm::NodeAttrs const&, mxnet::OpContext const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&, std::__1::vector<mxnet::OpReqType, std::__1::allocator<mxnet::OpReqType> > const&, std::__1::vector<mxnet::NDArray, std::__1::allocator<mxnet::NDArray> > const&) + 10336911 [bt] (7) 8 libmxnet.so 0x0000000111ea50ef mxnet::imperative::SetShapeType(mxnet::Context const&, nnvm::NodeAttrs const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, mxnet::DispatchMode*) + 1583 [bt] (8) 9 libmxnet.so 0x0000000111ea3bec mxnet::Imperative::Invoke(mxnet::Context const&, nnvm::NodeAttrs const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&, std::__1::vector<mxnet::NDArray*, std::__1::allocator<mxnet::NDArray*> > const&) + 716 ```
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