Comments by "Scott Franco" (@scottfranco1962) on "Github Can Never Support Kernel Development" video.

  1. mmmmm I have github projects with submodules. You can clone with something like git submodule update --remote. The key is all of my submodules are themselves stand alone libraries that have value as individual projects outside of the including projects. This avoids having to tell people "I have this neat module, but it is buried in this other project"
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  2.  @aeghohloechu5022  Well, I think personally it is a mistake to try to track all of the drivers in Linux. This is what? Half the kernel, and they could leave it to the hardware manufacturer's to do. Yes, I know the idea is to force the hardware makers to reveal their code, but that's not the only way to do that, and the kernel would be far more manageable without the drivers all embedded. Put it this way. BSD does not have this requirement, and the system still works.
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  3.  @vk3fbab  I was never for user space drivers, but I am not for kernel space drivers either. The x86 processors were designed with (IIRC) 4 privilege levels, but of course Intel famously f**ked it up, so more commonly its a binary kernel/user space. In any case, the permission model is dated in any case. The modern model is to wrap each driver in hardware access defined by page protection. This is conflated with "user space drivers" but it need not be. All of that is driven by a design error in interrupt handing by Intel, but of course now we are off topic[1]. Besides the rolling of all drivers into kernel space, a sickness that Windows shares, there is the fact that Linux depends on named linkages, essentially making driver installation driven by a run time linker. This in turn is driven by Linux/Linus's preference for keeping driver models fluid. Why establish a vector model if we aren't going to also keep the driver model stable? In any case, I would not preach for the so called "user space driver" model. I have seen that implemented by so many corporations in a messed up manner that I am not talking about it anymore (polling instead of interrupts, to mention the biggest issue). [1] could have an endless thread on that, but note that changing the paging tree root register has nothing to do with the permission level.
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