Andy Tanenbaum Releases Minix 3

Guillaume Pierre writes "Andy Tanenbaum announced the availability of the next version of the Minix operating system. "MINIX 3 is a new open-source operating system designed to be highly reliable and secure. This new OS is extremely small, with the part that runs in kernel mode under 4000 lines of executable code. The parts that run in user mode are divided into small modules, well insulated from one another. For example, each device driver runs as a separate user-mode process so a bug in a driver (by far the biggest source of bugs in any operating system), cannot bring down the entire OS. In fact, most of the time when a driver crashes it is automatically replaced without requiring any user intervention, without requiring rebooting, and without affecting running programs. These features, the tiny amount of kernel code, and other aspects greatly enhance system reliability."In case anyone wonders: yes, he still thinks that micro-kernels are more reliable than monolithic kernels ;-) Disclaimer: I am the chief architect of Globule, the experimental content-distribution network used to host www.minix3.org."

Comments

Re:This guy told linus

[LizardKing]

Linus would have deserved that "F" in operating system design, but he wasn't writing his kernel to get grades on a computer course. If he had been then he probably wouldn't have written a crude, monolithic kernel that was totally unportable. Apart from the crudity of it, those were his explicit goals - to write a monolithic kernel that would run optimally on his 80386. (Bear in mind that the Linux kernel we know today is pretty far removed from that early version in design and implementation).

As for AT, he's a very smart guy. He writes books on operating system deign and networking that clearly describe quite complex topics. Even if you don't like the idea of microkernels, the "Operating Systems ..." book that describes the Minix kernel is an excellent read.