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[[meta copyright="Copyright © 2007 Free Software Foundation, Inc."]]
[[meta license="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
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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.txt]]."]]
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 [[*l4-hurd*_mailing_list|mailinglists]] 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.
[[NealWalfield]] 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.
> 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.
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