DickJC123 commented on issue #9674: Fix test_sparse_operator failures due to 
out-of-bounds ref.
URL: https://github.com/apache/incubator-mxnet/pull/9674#issuecomment-362760136
 
 
   To prove that the prior code referenced uninitialized data, substitute the 
following 4 lines for the single line the PR changed:
   ```
      bool will_reference_axis_first_element = !dispatched && in_stype == 
kCSRStorage;
     if (will_reference_axis_first_element && param.axis.ndim() == 0)
       LOG(FATAL) << "Code is about to make out-of-bounds reference of 
param.axis[0]";
     if (!dispatched && in_stype == kCSRStorage &&
   ```
   Then re-built mxnet and run:
   ```
   nosetests --verbose 
tests/python/unittest/test_sparse_operator.py:test_sparse_storage_fallback
   ```
   For me, the fatal exception is thrown.

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