"Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> writes: > "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx> writes: >> On Fri, Mar 17, 2017 at 11:23:54PM +0530, Aneesh Kumar K.V wrote: >>> So if I have done a successful mmap which returned > 128TB what should a >>> following mmap(0,...) return ? Should that now search the *full* address >>> space or below 128TB ? >> >> No, I don't think so. And this implementation doesn't do this. >> >> It's safer this way: if an library can't handle high addresses, it's >> better not to switch it automagically to full address space if other part >> of the process requested high address. > > What is the epectation when the hint addr is below 128TB but addr + len > > 128TB ? Should such mmap request fail ? Yeah I think that makes sense, it retains the existing behaviour unless the hint itself is >= 128TB. cheers
