mseth10 commented on issue #20289:
URL: 
https://github.com/apache/incubator-mxnet/issues/20289#issuecomment-874370693


   In https://github.com/apache/incubator-mxnet/pull/20392, the docker base 
image was changed from ubuntu 14 to centos 7, and python v3.8 and numpy v1.17.3 
were installed. With these changes, most of the above tests pass and are 
enabled in the PR (hence we confirm that numpy version was the cause of 
failure).
   Only one test fail now `test_contrib_operator.test_multibox_target_op` with 
the following error log
   ```
   [2021-07-03T11:05:44.813Z] Traceback (most recent call last):
   [2021-07-03T11:05:44.813Z]   File 
"/opt/rh/rh-python38/root/usr/local/lib/python3.8/site-packages/nose/case.py", 
line 198, in runTest
   [2021-07-03T11:05:44.813Z]     self.test(*self.arg)
   [2021-07-03T11:05:44.813Z]   File 
"/work/mxnet/tests/python/unittest/test_contrib_operator.py", line 284, in 
test_multibox_target_op
   [2021-07-03T11:05:44.813Z]     assert_allclose(loc_target.asnumpy(), 
expected_loc_target, rtol=1e-5, atol=1e-5)
   [2021-07-03T11:05:44.813Z]   File 
"/work/mxnet/python/mxnet/ndarray/ndarray.py", line 2568, in asnumpy
   [2021-07-03T11:05:44.813Z]     check_call(_LIB.MXNDArraySyncCopyToCPU(
   [2021-07-03T11:05:44.813Z]   File "/work/mxnet/python/mxnet/base.py", line 
246, in check_call
   [2021-07-03T11:05:44.813Z]     raise get_last_ffi_error()
   [2021-07-03T11:05:44.813Z] mxnet.base.MXNetError: Traceback (most recent 
call last):
   [2021-07-03T11:05:44.813Z]   [bt] (9) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(+0x5b75e9c) [0xffffaa8d3e9c]
   [2021-07-03T11:05:44.813Z]   [bt] (8) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(std::thread::_State_impl<std::thread::_Invoker<std::tuple<std::function<void
 (std::shared_ptr<dmlc::ManualEvent>)>, std::shared_ptr<dmlc::ManualEvent> > > 
>::_M_run()+0x34) [0xffffa560ae54]
   [2021-07-03T11:05:44.813Z]   [bt] (7) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(std::_Function_handler<void 
(std::shared_ptr<dmlc::ManualEvent>), 
mxnet::engine::ThreadedEnginePerDevice::PushToExecute(mxnet::engine::OprBlock*, 
bool)::{lambda()#1}::operator()() 
const::{lambda(std::shared_ptr<dmlc::ManualEvent>)#1}>::_M_invoke(std::_Any_data
 const&, std::shared_ptr<dmlc::ManualEvent>&&)+0x104) [0xffffa560c944]
   [2021-07-03T11:05:44.813Z]   [bt] (6) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(mxnet::engine::ThreadedEngine::ExecuteOprBlock(mxnet::RunContext,
 mxnet::engine::OprBlock*)+0x10c) [0xffffa560bc3c]
   [2021-07-03T11:05:44.813Z]   [bt] (5) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(+0x8a27f0) [0xffffa56007f0]
   [2021-07-03T11:05:44.813Z]   [bt] (4) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(std::_Function_handler<void 
(mxnet::RunContext), mxnet::imperative::PushOperator(mxnet::OpStatePtr const&, 
nnvm::Op const*, nnvm::NodeAttrs const&, mxnet::Context const&, 
std::vector<mxnet::engine::Var*, std::allocator<mxnet::engine::Var*> > const&, 
std::vector<mxnet::engine::Var*, std::allocator<mxnet::engine::Var*> > const&, 
std::vector<mxnet::Resource, std::allocator<mxnet::Resource> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<unsigned int, std::allocator<unsigned int> > const&, 
std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, 
mxnet::DispatchMode)::{lambda(mxnet::RunContext)#4}>::_M_invoke(std::_Any_data 
const&, mxnet::RunContext&&)+0x44) [0xffffa56c2ce4]
   [2021-07-03T11:05:44.813Z]   [bt] (3) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(mxnet::imperative::PushOperator(mxnet::OpStatePtr
 const&, nnvm::Op const*, nnvm::NodeAttrs const&, mxnet::Context const&, 
std::vector<mxnet::engine::Var*, std::allocator<mxnet::engine::Var*> > const&, 
std::vector<mxnet::engine::Var*, std::allocator<mxnet::engine::Var*> > const&, 
std::vector<mxnet::Resource, std::allocator<mxnet::Resource> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<mxnet::NDArray*, std::allocator<mxnet::NDArray*> > const&, 
std::vector<unsigned int, std::allocator<unsigned int> > const&, 
std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, 
mxnet::DispatchMode)::{lambda(mxnet::RunContext, 
mxnet::engine::CallbackOnComplete)#3}::operator()(mxnet::RunContext, 
mxnet::engine::CallbackOnComplete) const+0x274) [0xffffa56c29b4]
   [2021-07-03T11:05:44.813Z]   [bt] (2) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(mxnet::op::MultiBoxTargetOp<mshadow::cpu,
 float>::Forward(mxnet::OpContext const&, std::vector<mxnet::TBlob, 
std::allocator<mxnet::TBlob> > const&, std::vector<mxnet::OpReqType, 
std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::TBlob, 
std::allocator<mxnet::TBlob> > const&, std::vector<mxnet::TBlob, 
std::allocator<mxnet::TBlob> > const&)+0x18b4) [0xffffa5b9f8a4]
   [2021-07-03T11:05:44.813Z]   [bt] (1) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(void 
mshadow::MultiBoxTargetForward<float>(mshadow::Tensor<mshadow::cpu, 2, float> 
const&, mshadow::Tensor<mshadow::cpu, 2, float> const&, 
mshadow::Tensor<mshadow::cpu, 2, float> const&, mshadow::Tensor<mshadow::cpu, 
2, float> const&, mshadow::Tensor<mshadow::cpu, 3, float> const&, 
mshadow::Tensor<mshadow::cpu, 3, float> const&, mshadow::Tensor<mshadow::cpu, 
4, float> const&, float, float, float, float, int, mxnet::Tuple<float> 
const&)+0x1150) [0xffffa5b8f9d0]
   [2021-07-03T11:05:44.813Z]   [bt] (0) 
/work/mxnet/python/mxnet/../../lib/libmxnet.so(dmlc::LogMessageFatal::~LogMessageFatal()+0x60)
 [0xffffa54a66e0]
   [2021-07-03T11:05:44.813Z]   File 
"../src/operator/contrib/multibox_target.cc", line 235
   [2021-07-03T11:05:44.813Z] MXNetError: Check failed: temp.size() >= 
num_negative (0 vs. 1) : 
   ```


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