Fiasco is a microkernel with real-time capabilities running on the x86 and ARM platforms. It is compatible with the L4 microkernel, which has set standards in microkernel performance and functionality. Fiasco is a fully-featured and secure L4 implementation with excellent real-time properties. It can run L4Linux, a port of the Linux kernel to the L4 interface which executes completely in user mode. The screenshot shows the DOpE real-time windowing environment running on top of Fiasco, with an instance of L4Linux running in one of the windows.
