Linked by Thom Holwerda on Sun 16th Apr 2006 15:36 UTC
OSNews, Generic OSes Right in between a car crash and Easter, I knew I had to write a Sunday Eve Column. So here I am, digesting vast quantities of chocolate eggs (and I don't even like chocolate), craving for coffee (for me about as special as breathing), with the goal of explaining to you my, well, obsession with microkernels. Why do I like them? Why do I think the microkernel paradigm is superior to the monolithic one? Read on.
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Microkernels in theory and practice
by felipe_alfaro on Sun 16th Apr 2006 16:28 UTC
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The problems with microkernels is than, in theory, they really look good. However, in practice, running a file system in user-space adds no benefit: if it crashes, how can you restart it? If the memory manager bails out, how can you create a new process and allocate memory for it? The networking subsystem is a good candidate for a user-space subsystem, but what about a diskless-workstation that boots from an NFS export? What would happen if the networking subsystem crashed?

More and more pieces of Linux are being pushed out to userspace. One nice example is used, of FUSE. udev is a central place in Linux device management, but even if it crashes or malfunctions, you can revert to the well-known mknod tool.

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