On Mon, Jan 29, 2018 at 06:33:25PM -0500, Jerome Glisse wrote: > Between i would also like to participate, in my view the burden should > be on GUP users, so if hardware is not ODP capable then you should at > least be able to kill the mapping/GUP and force the hardware to redo a > GUP if it get any more transaction on affect umem. Can non ODP hardware > do that ? Or is it out of the question ? For RDMA we can have the HW forcibly tear down the MR, but it is incredibly disruptive and nobody running applications would be happy with this outcome. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html