message: fix racecheck problem
diff: @@ -84,6 +84,7 @@ __device__ __forceinline__ void extract_transposed_diag_blocks(
  if (threadIdx.y == b && threadIdx.x < max_block_size) {
  workspace[threadIdx.x] = zero<ValueType>();
  }
  + warp.sync();
  const auto row = bstart + i;
  const auto rstart = row_ptrs[row] + tid;
  const auto rend = row_ptrs[row + 1];
  @@ -101,6 +102,7 @@ __device__ __forceinline__ void extract_transposed_diag_blocks(
  if (threadIdx.y == b && threadIdx.x < bsize) {
  block_row[i * increment] = workspace[threadIdx.x];
  }
  + warp.sync();
  }
  }
  }
  