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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2019/04/01 15:47:41 UTC
[GitHub] [incubator-mxnet] wirisfalvaro opened a new issue #14581: Problem
loading pre-trained model in C++ with cpp-package and CPU only inference
wirisfalvaro opened a new issue #14581: Problem loading pre-trained model in C++ with cpp-package and CPU only inference
URL: https://github.com/apache/incubator-mxnet/issues/14581
## Description
Compiling a C++ example for CPU inference by loading a pre-trained model leads to segmentation fault. The MXNet library is **compiled for CPU without OpenCV and OpenMP**.
## Environment info (Required)
Since this is a C++ issue, I only paste relevant system info.
```
----------System Info----------
Platform : Linux-4.15.0-45-generic-x86_64-with-Ubuntu-16.04-xenial
system : Linux
release : 4.15.0-45-generic
version : #48~16.04.1-Ubuntu SMP Tue Jan 29 18:03:48 UTC 2019
```
I'm compiling MXNet from source reducing the dependencies with the ultimate goal of compiling a static executable.
## Build info (Required if built from source)
Compiler:
```
$ g++ --version
g++ (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609
```
MXNet commit hash:
tag "1.4.0"
a03d59ed867ba334d78d61246a1090cd1868f5da
Build config:
Set in make/config.mk
```
USE_OPENCV = 0
USE_OPENMP = 0
```
and compile with command
```
make -j $(nproc) USE_BLAS=openblas USE_CPP_PACKAGE=1 USE_F16C=0
```
## Error Message:
It's a segmentation fault, but here I provide the output running with valgrind.
```
==1670== Memcheck, a memory error detector
==1670== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==1670== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==1670== Command: ./sentiment_analysis_rnn --input This\ movie\ is\ the\ best.
==1670==
File `./sentiment_analysis-symbol.json' already there; not retrieving.
[17:26:52] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_analysis-symbol.json with status 256
File `./sentiment_analysis-0010.params' already there; not retrieving.
[17:26:52] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_analysis-0010.params with status 256
File `./sentiment_token_to_idx.txt' already there; not retrieving.
[17:26:52] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_token_to_idx.txt with status 256
[17:26:52] sentiment_analysis_rnn.cpp:218: Loading the dictionary file.
[17:26:55] sentiment_analysis_rnn.cpp:176: Loading the model from ./sentiment_analysis-symbol.json
[17:26:55] src/nnvm/legacy_json_util.cc:209: Loading symbol saved by previous version v1.3.1. Attempting to upgrade...
[17:26:55] src/nnvm/legacy_json_util.cc:217: Symbol successfully upgraded!
[17:26:55] sentiment_analysis_rnn.cpp:189: Loading the model parameters from ./sentiment_analysis-0010.params
==1670== Invalid read of size 8
==1670== at 0x85013A0: __dynamic_cast (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==1670== by 0x75C484D: 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&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75C6179: mxnet::exec::GraphExecutor::Init(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75CD8E3: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406EDD: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== Address 0x2418ddb0 is 16 bytes before a block of size 704 alloc'd
==1670== at 0x4C2E476: operator new(unsigned long) (vg_replace_malloc.c:334)
==1670== by 0x75CD4B4: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406CD2: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670==
==1670== Invalid read of size 8
==1670== at 0x85013A7: __dynamic_cast (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==1670== by 0x75C484D: 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&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75C6179: mxnet::exec::GraphExecutor::Init(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75CD8E3: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406EDD: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== Address 0x2418ddb8 is 8 bytes before a block of size 704 alloc'd
==1670== at 0x4C2E476: operator new(unsigned long) (vg_replace_malloc.c:334)
==1670== by 0x75CD4B4: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406CD2: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670==
==1670== Invalid read of size 8
==1670== at 0x85013CE: __dynamic_cast (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==1670== by 0x75C484D: 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&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75C6179: mxnet::exec::GraphExecutor::Init(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75CD8E3: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406EDD: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== Address 0x2418ddb8 is 8 bytes before a block of size 704 alloc'd
==1670== at 0x4C2E476: operator new(unsigned long) (vg_replace_malloc.c:334)
==1670== by 0x75CD4B4: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406CD2: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670==
==1670== Invalid read of size 8
==1670== at 0x85013D4: __dynamic_cast (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==1670== by 0x75C484D: 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&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75C6179: mxnet::exec::GraphExecutor::Init(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75CD8E3: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406EDD: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==1670==
==1670==
==1670== Process terminating with default action of signal 11 (SIGSEGV)
==1670== Access not within mapped region at address 0x0
==1670== at 0x85013D4: __dynamic_cast (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==1670== by 0x75C484D: 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&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75C6179: mxnet::exec::GraphExecutor::Init(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*, std::unordered_map<nnvm::NodeEntry, mxnet::NDArray, nnvm::NodeEntryHash, nnvm::NodeEntryEqual, std::allocator<std::pair<nnvm::NodeEntry const, mxnet::NDArray> > > const&) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x75CD8E3: mxnet::Executor::Bind(nnvm::Symbol, mxnet::Context const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::Context> > > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, std::vector<mxnet::OpReqType, std::allocator<mxnet::OpReqType> > const&, std::vector<mxnet::NDArray, std::allocator<mxnet::NDArray> > const&, mxnet::Executor*) (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x7D851DB: MXExecutorBindEX (in /home/user/src/mxnet/lib/libmxnet.so)
==1670== by 0x40C08F: mxnet::cpp::Executor::Executor(mxnet::cpp::Symbol const&, mxnet::cpp::Context, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x40DAB3: mxnet::cpp::Symbol::Bind(mxnet::cpp::Context const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::vector<mxnet::cpp::OpReqType, std::allocator<mxnet::cpp::OpReqType> > const&, std::vector<mxnet::cpp::NDArray, std::allocator<mxnet::cpp::NDArray> > const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, mxnet::cpp::Context, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, mxnet::cpp::Context> > > const&, mxnet::cpp::Executor*) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x406EDD: Predictor::Predictor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, bool) (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== by 0x409337: main (in /home/user/src/mxnet/cpp-package/example/sentiment_analysis_rnn)
==1670== If you believe this happened as a result of a stack
==1670== overflow in your program's main thread (unlikely but
==1670== possible), you can try to increase the size of the
==1670== main thread stack using the --main-stacksize= flag.
==1670== The main thread stack size used in this run was 8388608.
==1670==
==1670== HEAP SUMMARY:
==1670== in use at exit: 67,459,401 bytes in 51,374 blocks
==1670== total heap usage: 78,212 allocs, 26,838 frees, 99,751,997 bytes allocated
==1670==
==1670== LEAK SUMMARY:
==1670== definitely lost: 0 bytes in 0 blocks
==1670== indirectly lost: 0 bytes in 0 blocks
==1670== possibly lost: 3,648 bytes in 12 blocks
==1670== still reachable: 67,455,753 bytes in 51,362 blocks
==1670== of which reachable via heuristic:
==1670== newarray : 488 bytes in 1 blocks
==1670== suppressed: 0 bytes in 0 blocks
==1670== Rerun with --leak-check=full to see details of leaked memory
==1670==
==1670== For counts of detected and suppressed errors, rerun with: -v
==1670== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)
```
## Minimum reproducible example
I ran the example of the sentiment_analysis_rnn.cpp, but it is not in the 1.4.0 commit. Therefore I downloaded it.
```
incubator-mxnet/cpp-package/example/inference/sentiment_analysis_rnn.cpp
```
## Steps to reproduce
1. cd cpp-package/example
2. wget https://raw.githubusercontent.com/apache/incubator-mxnet/master/cpp-package/example/inference/sentiment_analysis_rnn.cpp
3. g++ -std=c++11 -I../../include -I../../3rdparty/tvm/nnvm/include -I../../3rdparty/dmlc-core/include -I../include -o sentiment_analysis_rnn sentiment_analysis_rnn.cpp -L../../lib -lmxnet
4. LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:../../lib ./sentiment_analysis_rnn --input "This movie is the best."
## What have you tried to solve it?
I have also tried to compile it with the static libraries with command:
```g++ -std=c++11 -I../../include -I../../3rdparty/tvm/nnvm/include -I../../3rdparty/dmlc-core/include -I../include -o sentiment_analysis_rnn sentiment_analysis_rnn.cpp -L../../lib -L../../3rdparty/tvm/nnvm/lib/ -L../../3rdparty/dmlc-core -lmxnet -static -ldmlc -lnnvm -lrt -pthread```
but it leads to the same error.
```
$ LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:../../lib ./sentiment_analysis_rnn --input "This movie is the best."
File `./sentiment_analysis-symbol.json' already there; not retrieving.
[17:37:22] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_analysis-symbol.json with status 256
File `./sentiment_analysis-0010.params' already there; not retrieving.
[17:37:22] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_analysis-0010.params with status 256
File `./sentiment_token_to_idx.txt' already there; not retrieving.
[17:37:22] sentiment_analysis_rnn.cpp:420: Downloading ./sentiment_token_to_idx.txt with status 256
[17:37:22] sentiment_analysis_rnn.cpp:218: Loading the dictionary file.
[17:37:22] sentiment_analysis_rnn.cpp:176: Loading the model from ./sentiment_analysis-symbol.json
Segmentation fault (core dumped)
```
Furthermore, I tried other examples of the cpp-package, like the "mlp_cpu" and it works
```
$ LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:../../lib ./build/mlp_cpu
[17:41:39] src/io/iter_mnist.cc:110: MNISTIter: load 60000 images, shuffle=1, shape=(100,784)
[17:41:40] src/io/iter_mnist.cc:110: MNISTIter: load 10000 images, shuffle=1, shape=(100,784)
[17:41:42] mlp_cpu.cpp:134: Epoch: 0 28011.2 samples/sec Accuracy: 0.1135
[17:41:44] mlp_cpu.cpp:134: Epoch: 1 25073.1 samples/sec Accuracy: 0.536
[17:41:47] mlp_cpu.cpp:134: Epoch: 2 23319.1 samples/sec Accuracy: 0.8278
[17:41:50] mlp_cpu.cpp:134: Epoch: 3 23157.1 samples/sec Accuracy: 0.8726
[17:41:52] mlp_cpu.cpp:134: Epoch: 4 38860.1 samples/sec Accuracy: 0.9041
[17:41:54] mlp_cpu.cpp:134: Epoch: 5 27124.8 samples/sec Accuracy: 0.9163
[17:41:56] mlp_cpu.cpp:134: Epoch: 6 26431.7 samples/sec Accuracy: 0.9226
[17:41:58] mlp_cpu.cpp:134: Epoch: 7 33500.8 samples/sec Accuracy: 0.9291
[17:42:00] mlp_cpu.cpp:134: Epoch: 8 35735.6 samples/sec Accuracy: 0.9334
[17:42:02] mlp_cpu.cpp:134: Epoch: 9 35863.7 samples/sec Accuracy: 0.937
```
But that example builds the model and trains it from data. Therefore, I think that the problem might be loading pre-trained models.
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