RTLinux

RTLinux is a hard realtime RTOS microkernel that runs the entire Linux operating system as a fully preemptive process. It is the hard realtime variant of Linux that makes it possible to control robots, data acquisition systems, manufacturing plants, and other time-sensitive instruments and machines.

It was developed by Victor Yodaiken, Michael Barabanov, Cort Dougan and others at the New Mexico Institute of Mining and Technology and then as a commercial product at FSMLabs. Wind River Systems acquired FSMLabs embedded technology in February 2007 and made a version available as Wind River Real-Time Core for Wind River Linux. As of August 2011, Wind River has discontinued the Wind River Real-Time Core product line, effectively ending commercial support for RTLinux.