On Mon, Jun 20, 2016 at 12:40 PM, Craig Ringer <cr...@2ndquadrant.com> wrote: > On 18 June 2016 at 02:42, Robert Haas <robertmh...@gmail.com> wrote: >> >> On Fri, Jun 17, 2016 at 2:23 PM, Aleksey Demakov <adema...@gmail.com> >> wrote: >> > Essentially this is pessimizing for the lowest common denominator >> > among OSes. >> >> I totally agree. That's how we make the server portable. >> >> > Having a contiguous address space makes things so >> > much simpler that considering this case, IMHO, is well worth of it. >> >> I think that would be great if you could make it work, but it has to >> support Linux, Windows (all supported versions), MacOS X, all the >> various BSD flavors for which we have buildfarm animals, and other >> platforms that we currently run on like HP-UX. If you come up with a >> solution that works for this on all of those platforms, I will shake >> your hand. But I think that's probably impossible, or at least >> really, really hard. > > > Indeed. In particular, ASLR on Windows or anywhere we EXEC_BACKEND will > cause difficulties attaching to those segments.
ASLR that we currently disable in the build because Win8/2k12 and newer versions behaves differently than past OSes in the address mapping, making the problem even harder if we'd want to have both working. -- Michael -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
