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The [*L4* microkernel](http://l4ka.org/) is an attempt to create a very small
high performace core which provides basic memory management, task and context
switching, and little else.

[L4Ka Pistachio Home](http://l4ka.org/projects/pistachio/).

See [l4.verified](http://nicta.com.au/research/projects/l4.verified) for work
on formally verifying an L4 microkernel.

  * {{$sel4}}

There was a GNU/Hurd [[port to L4|history/port_to_another_microkernel]], which
is now stalled.


# IRC, freenode, #hurd, 2012-08-02

    <mcsim> If someone interested, there is a channel with lectures about
      Genode and L4: http://www.youtube.com/user/drsartakov?feature=watch


# IRC, freenode, #hurd, 2013-08-26

    < Spyro> also
    < Spyro> what's the basic difference between mach and L4?
    < braunr> l4 is a nanokernel whereas mach is a hybrid with high level
      messaging and virtual memory services


[[!ymlfront data="""

sel4:

  "G. Klein, K. Elphinstone, G. Heiser, J. Andronick, D. Cock, P. Derrin,
  D. Elkaduwe, K. Engelhardt, R. Kolanski, M. Norrish, T. Sewell, H. Tuch, and
  S. Winwood.  seL4: Formal verification of an OS kernel.  In Proceedings of
  the ACM Symposium on OS Principles, Big Sky, MT, USA, October 2009."

"""]]