larroy commented on issue #14979: [BUG] Using a package with MKL and GPU versions, using python to open a new process will cause an error URL: https://github.com/apache/incubator-mxnet/issues/14979#issuecomment-517082751 I could reproduce with binary distribution cu101mkl ``` (py3_env_pip) piotr@ip-172-31-21-159:0: ~> python test.py Downloading /home/piotr/.mxnet/datasets/squad/train-v1.1.zip from https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/squad/train-v1.1.zip... Segmentation fault: 11 Stack trace: [bt] (0) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x2f9cf20) [0x7fd2107a7f20] [bt] (1) /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fd25813cf20] [bt] (2) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libiomp5.so(+0xac19c) [0x7fd253c7119c] [bt] (3) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x2648ea3) [0x7fd20fe53ea3] [bt] (4) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x265c798) [0x7fd20fe67798] [bt] (5) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(std::shared_ptr<mxnet::engine::ThreadedEnginePerDevice::ThreadWorkerBlock<(dmlc::ConcurrentQueueType)1> > mxnet::common::LazyAllocArray<mxnet::engine::ThreadedEnginePerDevice::ThreadWorkerBlock<(dmlc::ConcurrentQueueType)1> >::Get<mxnet::engine::ThreadedEnginePerDevice::PushToExecute(mxnet::engine::OprBlock*, bool)::{lambda()#2}>(int, mxnet::engine::ThreadedEnginePerDevice::PushToExecute(mxnet::engine::OprBlock*, bool)::{lambda()#2})+0x241) [0x7fd20fe6d741] [bt] (6) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x26650c4) [0x7fd20fe700c4] [bt] (7) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x264dc6e) [0x7fd20fe58c6e] [bt] (8) /home/piotr/py3_env_pip/lib/python3.6/site-packages/mxnet/libmxnet.so(mxnet::CopyFromTo(mxnet::NDArray const&, mxnet::NDArray const&, int, bool)+0xa39) [0x7fd2100732c9] ```
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