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The MINIX 3 microkernel has been used as a base to reimplement NetBSD. To application pr...
The MINIX 3 microkernel has been used as a base to reimplement NetBSD. To application programs, MINIX 3 looks like NetBSD, with the NetBSD headers, libraries, package manager, etc. Thousands of NetBSD packages run on it on the x86 and ARM Cortex V8 (BeagleBones). Inside, however, it is a completely different architecture, with a tiny microkernel and independent servers for memory management, the file system, and each device driver. This architecture has many valuable properties which will be described in the talk, including better security and the ability to recover from many component crashes without running applications even noticing. Updating to a new version of the operating system while it is running and without a reboot is on the roadmap for the future.