  We show that codimension one dimensional Jacobian of the barycentric
straightening map is uniformly bounded for most of the higher rank symmetric
spaces. As a consequence, we prove that the locally finite simplicial volume of
most $\mathbb Q$-rank $1$ locally symmetric spaces is positive, which has been
open for many years. Finally we improve the degree theorem for $\mathbb Q$-rank
$1$ locally symmetric spaces of Connell and Farb. We also address the issue of
surjectivity of the comparison map in real rank $2$ case.
