[ewg] Re: [PATCH] IB/ehca: Change misleading error message

[Joachim Fenkes]

Roland Dreier <rdreier at cisco.com> wrote on 26.11.2008 00:13:51:

> That's too bad... I applied this patch but out of curiousity, why
> doesn't the hot-remove/hot-add work?  I would have thought that
> re-registering all of memory after the hot-add would do the right thing.

That's right, but right now, we simply try to register all of memory from 
KERNELBASE to high_memory, which works right until we have memory holes in 
the middle; then the hypervisor will reject our page registrations. Same 
goes for huge (16GB) pages, by the way. We're working on a solution to 
this.

Cheers,
  Joachim