Hallo, I just stumbled across this (via heise.de): http://os.inf.tu-dresden.de/fiasco/overview.html What are Fiasco's distinctive features (i.e., buzzwords)? Fiasco is a preemptible real-time kernel supporting hard priorities. It uses non-blocking synchronization for its kernel objects. This guarantees priority inheritance and makes sure that runnable high-priority processes never block waiting for lower-priority processes. When using L4Linux on top of Fiasco, hard-real-time applications can share one machine with time-sharing (Linux) applications. Fiasco is a real, second-generation µ-kernel protecting applications in address spaces. Thanks to its efficient task and context switching mechanism and its performace-oriented design, the performance penalties induced by address-space security are neglible - much smaller than in older, first-generation µ-kernels like Mach. Sounds somehow interesting. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__