RE: Problem with RDMA device removal architecture

Sean Hefty
2010-03-26T22:54:58Z

>uverbs is trickier, because a userspace process will typically have some
>hardware resources directly mmap'ed. We need a way to "revoke" that
>mmap and have it point at a dummy page until userspace releases it --

What exactly would the dummy page contain and could the application/library read
it assuming that it is obtaining valid data?