summaryrefslogtreecommitdiff
path: root/faq/64-bit.mdwn
blob: 1da375ba0d195434e45d5c0b66097f21ae80d8eb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
[[!meta copyright="Copyright © 2013, 2016, 2017, 2018 Free Software Foundation,
Inc."]]

[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]

[[!tag faq/support]]

[[!meta title="Is there a 64-bit version?"]]

There are currently no plan for 64-bit userland, but there are plans for 64-bit
kernelland with 32-bit userland, which will notably permit to efficiently make
use of more than 2 GiB memory and provide 4 GiB userland addressing space.
[[Work on this|open_issues/64-bit_port]] is currently in the master-x86_64 and
port-amd64 branches for GNU Mach.

That being said, you can always run a 32-bit version on a 64-bit machine, it
just works, processes are just limited to a couple GiB available memory.