On Mon, Mar 20, 2017 at 11:08:41AM -0700, h...@zytor.com wrote: > On March 19, 2017 1:26:58 AM PDT, "Kirill A. Shutemov" <kir...@shutemov.name> > wrote: > >On Mar 19, 2017 09:25, "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com> > >wrote: > > > What is the epectation when the hint addr is below 128TB but addr + len > > > 128TB ? Should such mmap request fail ? > > > >Yes, I believe so. > > This *better* be conditional on some kind of settable limit. Having a > barrier in the middle of the address space for no apparent reason to > "clean" software is insane.
I disagree with Kirill here. If addr+len > 128TB, I think we should assume the application is 57-bit aware. Specifying hint addresses is such a rare thing to do anyway.
