message: Add some logging to assist debugging error handling and device reset mechanism.
  Summary: Resolves T48988
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, markf, mattl
  Subscribers: hanzhao, georgep, mattl
  Maniphest Tasks: T48988
diff: @@ -523,6 +523,7 @@ class CommunicationManager {
  void Abort(Status status) {
  TENSORFLOW_TRACEPOINT();
  + VLOG(1) << "Communication manager aborting: " << status;
  std::unique_lock<std::recursive_mutex> lk(io_mutex_);
  status_ = status;
  