Zha0q1 commented on issue #19265:
URL:
https://github.com/apache/incubator-mxnet/issues/19265#issuecomment-702324807
seg fault:
```
Segmentation fault: 11
terminate called without an active exception
Aborted (core dumped)
```
GDB:
```
Thread 9 "python" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffbac26700 (LWP 18164)]
bt
0x00007fff9c0743f0 in ?? ()
(gdb) bt
#0 0x00007fff9c0743f0 in ?? ()
#1 0x00007fffe5e905ec in float**
dnnl::impl::memory_tracking::grantor_t::get<float*>(unsigned int const&) const
() from
/home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#2 0x00007fffe5e93697 in
dnnl::impl::cpu::_ref_rnn_common_t<(dnnl_prop_kind_t)64, (dnnl_data_type_t)3,
(dnnl_data_type_t)3, (dnnl_data_type_t)3>::execute_(dnnl::impl::exec_ctx_t
const&) const ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#3 0x00007fffe5d05de9 in
dnnl::impl::cpu::_ref_rnn_common_t<(dnnl_prop_kind_t)64, (dnnl_data_type_t)3,
(dnnl_data_type_t)3, (dnnl_data_type_t)3>::execute(dnnl::impl::exec_ctx_t
const&) const ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#4 0x00007fffe5890788 in dnnl_primitive_execute ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#5 0x00007fffe0a5eb1a in mxnet::MKLDNNStream::Submit(bool) ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#6 0x00007fffe0b13343 in mxnet::op::MKLDNNRnnOp::Forward(mxnet::OpContext
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&) ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#7 0x00007fffe5306633 in
mxnet::op::RNNStatefulComputeExCPU(mxnet::OpStatePtr const&, mxnet::OpContext
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&) ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#8 0x00007fffe4f503fd in 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)#1}::operator()(mxnet::RunContext,
mxnet::engine::CallbackOnComplete) const () from
/home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#9 0x00007fffe4f506cd in std::_Function_handler<void (mxnet::RunContext),
mxnet::imperative::PushOperator(mxnet::O---Type <return> to continue, or q
<return> to quit---
pStatePtr 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)#2}>::_M_invoke(std::_Any_data
const&, mxnet::RunContext) () from
/home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#10 0x00007fffe501d754 in std::_Function_handler<void (mxnet::RunContext,
mxnet::engine::CallbackOnComplete),
mxnet::engine::ThreadedEngine::PushSync(std::function<void
(mxnet::RunContext)>, mxnet::Context, std::vector<mxnet::engine::Var*,
std::allocator<mxnet::engine::Var*> > const&, std::vector<mxnet::engine::Var*,
std::allocator<mxnet::engine::Var*> > const&, mxnet::FnProperty, int, char
const*)::{lambda(mxnet::RunContext,
mxnet::engine::CallbackOnComplete)#1}>::_M_invoke(std::_Any_data const&,
mxnet::RunContext, mxnet::engine::CallbackOnComplete) ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#11 0x00007fffe50180a5 in
mxnet::engine::ThreadedEngine::ExecuteOprBlock(mxnet::RunContext,
mxnet::engine::OprBlock*) () from
/home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#12 0x00007fffe502a294 in 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>) ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#13 0x00007fffe5016934 in
std::thread::_Impl<std::_Bind_simple<std::function<void
(std::shared_ptr<dmlc::ManualEvent>)> (std::shared_ptr<dmlc::ManualEvent>)>
>::_M_run() ()
from /home/ubuntu/anaconda3/lib/python3.7/site-packages/mxnet/libmxnet.so
#14 0x00007fffded79421 in std::execute_native_thread_routine_compat
(__p=<optimized out>)
at
/home/nwani/m3/conda-bld/compilers_linux-64_1560109574129/work/.build/x86_64-conda_cos6-linux-gnu/src/gcc/libstdc++-v3/src/c++11/thread.cc:94
#15 0x00007ffff7bbd6db in start_thread (arg=0x7fffbac26700) at
pthread_create.c:463
#16 0x00007ffff78e6a3f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
```
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