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authorThomas Schwinge <tschwinge@gnu.org>2009-02-17 01:44:54 +0100
committerThomas Schwinge <tschwinge@gnu.org>2009-02-17 01:54:30 +0100
commitf57755b84e4d352faab76bf7194768555a615596 (patch)
treea08e082a5dbeb5148166a96b14141e5e125691a8 /hurd/ng/history.mdwn
parent4fd2c0b88c8c1fb15dd5d039ad87d5147ff6b350 (diff)
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-[[meta copyright="Copyright © 2007, 2008 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]]."]]"""]]
-
-The idea of using [[microkernel/L4]] as a [[microkernel]] for a
-[[Hurd_system|hurd]] was initially voiced in the [[Hurd_community|community]]
-by Okuji Yoshinori. He created the [[mailing_lists/l4-hurd]] mailing list in
-November 2000. It does not appear that he got any further than simply
-suggesting it as an alternative to [[microkernel/Mach]] and doing some reading.
-
-Neal Walfield started the original Hurd/L4 port while at Karlsruhe in 2002.
-He explains:
-
-> My intention was to adapt the Hurd to exploit L4's concepts and intended
-> [[design_pattern]]s; it was not to simply provide a Mach
-> [[compatibility_layer]] on top of L4. When I left Karlsruhe, I no longer had
-> access to [[microkernel/l4/Pistachio]] as I was unwilling to sign an NDA.
-> Although the specification was available, the Karlsruhe group only [released
-> their code in May
-> 2003](https://lists.ira.uni-karlsruhe.de/pipermail/l4ka/2003-May/000345.html).
-> Around this time, Marcus began hacking on Pistachio. He created a relatively
-> complete run-time. I didn't really become involved again until the second
-> half of 2004, after I complete by Bachelors degree.
-
-> Before Marcus and I considered [[microkernel/Coyotos]], we had already
-> rejected some parts of the Hurd's design. The [[resource_management_problems]]
-> were what prompted me to look at L4. Also, some of the problems with
-> [[translator]]s were already well-known to us. (For a more detailed
-> description of the problems we have identified, see our [[critique]] in the
-> 2007 July's SIGOPS OSR. We have also written a forward-looking
-> [[position_paper]].)
-
-> We visited Jonathan Shapiro at Hopkins in January 2006. This resulted in a
-> number of discussions, some quite influential, and not always in a way which
-> aligned our position with that of Jonathan's. This was particularly true of
-> a number of security issues.
-
-A lange number of discussion threads can be found in the archives of the
-[[mailing_lists/l4-hurd]] mailing list.
-
-> Hurd-NG, as we originally called it, was an attempt to articulate the system
-> that we had come to envision in terms of interfaces and description of the
-> system's structure. The new name was selected, if I recall correctly, as it
-> clearly wasn't the Hurd nor the Hurd based on L4.