larroy commented on issue #13438: libc getenv is not threadsafe URL: https://github.com/apache/incubator-mxnet/issues/13438#issuecomment-442630060 ``` /lib64/libc.so.6(+0x35250) [0x7fdc5b99b250] /lib64/libc.so.6(getenv+0xad) [0x7fdc5b99e0cd] /opt/amazon/lib/libmxnet.so(ZN4dmlc6GetEnvIbEET_PKcS1+0x1b) [0x7fdc4a1bedab] /opt/amazon/lib/libmxnet.so(mxnet::exec::GraphExecutor::InitOpSegs()+0x1cb) [0x7fdc4a1b6e0b] /opt/amazon/lib/libmxnet.so(mxnet::exec::GraphExecutor::FinishInitGraph(nnvm::Symbol, nnvm::Graph, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&)+0x71b) [0x7fdc4a1b760b] /opt/amazon/lib/libmxnet.so(_ZN5mxnet4exec13GraphExecutor4InitEN4nnvm6SymbolERKNS_7ContextERKSt3mapISsS4_St4lessISsESaISt4pairIKSsS4_EEERKSt6vectorIS4_SaIS4_EESL_SL_RKSt13unordered_mapISsNS2_6TShapeESt4hashISsESt8equal_toISsESaISA_ISB_SN_EEERKSM_ISsiSP_SR_SaISA_ISB_iEEES11_RKSH_INS_9OpReqType ESaIS12_EERKSt13unordered_setISsSP_SR_SaISsEEPSH_INS_7NDArrayESaIS1C_EES1F_S1F_PSM_ISsS1C_SP_SR_SaISA_ISB_S1C_EEEPNS_8ExecutorERKSM_INS2_9NodeEntryES1C_NS2_13NodeEntryHashENS2_14NodeEntryEqualESaISA_IKS1M_S1C_EEE+0x75d) [0x7fdc4a1b958d] /opt/amazon/lib/libmxnet.so(ZN5mxnet8Executor10SimpleBindEN4nnvm6SymbolERKNS_7ContextERKSt3mapISsS3_St4lessISsESaISt4pairIKSsS3_EEERKSt6vectorIS3_SaIS3_EESK_SK_RKSt13unordered_mapISsNS1_6TShapeESt4hashISsESt8equal_toISsESaIS9_ISA_SM_EEERKSL_ISsiSO_SQ_SaIS9_ISA_iEEES10_RKSG_INS_9OpReqTypeESaI S11_EERKSt13unordered_setISsSO_SQ_SaISsEEPSG_INS_7NDArrayESaIS1B_EES1E_S1E_PSL_ISsS1B_SO_SQ_SaIS9_ISA_S1B_EEEPS0+0x1a6) [0x7fdc4a1b9f46] /opt/amazon/lib/libmxnet.so(MXExecutorSimpleBind+0x1e38) [0x7fdc4a1031a8] ```
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