Unpopular opinion: Tanenbaum was right about Linux.
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Replying to @pcwalton
Yes and no. Monolithic kernel is wrong, but so was the 1990s (and much of present) idea about what a microkernel should be. AIUI they had much of hardware access in core kernel, POSIX as a bunch of services...
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Replying to @RichFelker @pcwalton
It should be the other way around. POSIX (or at least a corresponding and fully compatible resource model) in the core kernel, all hardware access isolated into unprivileged services.
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Replying to @RichFelker
Hmm, interesting. I always thought something exokernel-ish would be worth trying, with a minimal core of POSIX semantics in the kernel and most of the rest in userspace libraries…
2 replies 0 retweets 1 like
You missed the main point about "all hardware access isolated to unprivileged services". Total opposite of Linux model where all drivers run in kernel memory space, ring 0.
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