[CSE]  Advanced Operating Systems 
 COMP9242 2002/S2 
UNSW

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Next: Interrupts and Interrupt Handlers Up: 01-l4 Previous: Exceptions and Excepters

Preemptions and Preempters

  • Basic idea:
    • treat a preemptions like a page fault, i.e., a time faults,
    • have a preempter as a time-fault handler,
    • preempter is invoked via IPC.
  • Model is, at present, not matured, and preemtpers are not implemented in any L4 version.



Gernot Heiser 2002-08-07