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Tflite micro: segfault after failing to allocate tensors in MicroAllocator #36533

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exFalso opened this issue Feb 7, 2020 · 1 comment
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Tflite micro: segfault after failing to allocate tensors in MicroAllocator #36533

exFalso opened this issue Feb 7, 2020 · 1 comment
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@wangtz
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comp:lite TF Lite related issues comp:micro Related to TensorFlow Lite Microcontrollers type:bug Bug

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@exFalso
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exFalso commented Feb 7, 2020

System information

  • Have I written custom code (as opposed to using a stock example script provided in TensorFlow): no
  • OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Arch Linux, NixOS
  • Mobile device (e.g. iPhone 8, Pixel 2, Samsung Galaxy) if the issue happens on mobile device: nope
  • TensorFlow installed from (source or binary): source
  • TensorFlow version (use command below): latest master
  • Python version: C++
  • Bazel version (if compiling from source): nope, Make
  • GCC/Compiler version (if compiling from source): 8.3.0
  • CUDA/cuDNN version: nope
  • GPU model and memory: nope

Describe the current behavior

tflite::MicroInterpreter constructor segfaults

Describe the expected behavior

it shouldn't segfault

Code to reproduce the issue

grrr call MicroInterpreter constructor with a small arena_size

Other info / logs
Fix:

tensorflow/tensorflow/lite/micro/micro_allocator.cc

Line 345 in 753ceb9

"Failed to allocate memory for context->tensors, %d bytes required",
this conditional should return an error code instead of continuing. PR coming up
@ravikyram ravikyram added comp:lite TF Lite related issues comp:micro Related to TensorFlow Lite Microcontrollers type:bug Bug labels Feb 10, 2020
@ravikyram ravikyram assigned ymodak and unassigned ravikyram Feb 10, 2020
@ymodak ymodak assigned wangtz and unassigned ymodak Feb 14, 2020
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@wangtz wangtz

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comp:lite TF Lite related issues comp:micro Related to TensorFlow Lite Microcontrollers type:bug Bug
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@exFalso @wangtz @ymodak @ravikyram