message: Update comment on fix to prevent segfault
diff: @@ -357,14 +357,14 @@ tensorflow::Status GetEngineInfo(
  auto node = *it;
  auto node_device = node->requested_device();
  if (!node_device.empty()) {
  - // If device is CPU, we should've caught that in the segmenter. Don't add
  - // CPU to segment_device because that would cause a segfault in
  - // GetDeviceAndAllocator.
  + // If device is CPU, treat as if no device was assigned. Don't add CPU to
  + // segment_device because that would cause a segfault in
  + // GetDeviceAndAllocator. This is because GetDeviceAndAllocator assumes
  + // any already set device is a GPU.
  DeviceNameUtils::ParsedName parsed_name;
  DeviceNameUtils::ParseFullName(node_device, &parsed_name);
  if (parsed_name.type == "CPU") {
  - LOG(WARNING) << "Node " << node->name() << " was assigned to the CPU "
  - << "but did not get excluded by the segmenter. "
  + VLOG(1) << "Node " << node->name() << " was assigned to the CPU. "
  << "Attempting to place on GPU.";
  } else {
  segment_devices.insert(node_device);
  