I tensorflow/core/common_runtime/gpu/gpu_device.cc:975] Creating TensorFlow device (/gpu:0) -> (device: 0, name: Tesla K20m, pci bus id: 0000:08:00.0)
[I 06:50:53.832 NotebookApp] Saving file at /train.ipynb
[W 06:50:53.833 NotebookApp] Saving untrusted notebook train.ipynb
E tensorflow/stream_executor/cuda/cuda_event.cc:49] Error polling for event status: failed to query event: CUDA_ERROR_ILLEGAL_ADDRESS
F tensorflow/core/common_runtime/gpu/gpu_event_mgr.cc:198] Unexpected Event status: 1
[I 06:50:59.857 NotebookApp] KernelRestarter: restarting kernel (1/5)
WARNING:root:kernel 716a1c43-9937-4c21-9a01-1f842c5cf3c5 restarted