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+[[!meta copyright="Copyright © 2011 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 open_issue_gnumach open_issue_mig]]
+
+IRC, freenode, #hurd, 2011-10-16:
+
+ <youpi> it'd be really good to have a 64bit kernel, no need to care about
+ addressing space :)
+ <braunr> yes a 64 bits kernel would be nice
+ <braunr> i guess it wouldn't be too hard to have a special mach kernel for
+ 64 bits processors, but 32 bits userland only
+ <youpi> well, it means tinkering with mig
+ <braunr> like old sparc systems :p
+ <youpi> to build the 32bit interface, not the 64bit one
+ <braunr> ah yes
+ <braunr> hm
+ <braunr> i'm not sure
+ <braunr> mig would assume a 32 bits kernel, like now
+ <youpi> and you'll have all kinds of discrepancies in vm_size_t & such
+ <braunr> yes
+ <braunr> the 64 bits type should be completely internal
+ <braunr> types*
+ <braunr> but it would be far less work than changing all the userspace bits
+ for 64 bit (ofc we'll do that some day but in the meanwhile ..)
+ <youpi> yes
+ <youpi> and it'd boost userland addrespace to 4GiB
+ <braunr> yes
+ <youpi> leaving time for a 64bit userland :)