In practice, the Linux community is the wild wild west, and sweeping changes are infamously difficult to achieve consensus on, and this is by far the broadest sweeping change ever proposed for the project. Every subsystem is a private fiefdom, subject to the whims of each one of Linux’s 1,700+ maintainers, almost all of whom have a dog in this race. It’s herding cats: introducing Rust effectively is one part coding work and ninety-nine parts political work – and it’s a lot of coding work. Every subsystem has its own unique culture and its own strongly held beliefs and values.
The consequences of these factors is that Rust-for-Linux has become a burnout machine. My heart goes out to the developers who have been burned in this project. It’s not fair. Free software is about putting in the work, it’s a classical do-ocracy… until it isn’t, and people get hurt. In spite of my critiques of the project, I recognize the talent and humanity of everyone involved, and wouldn’t have wished these outcomes on them. I also have sympathy for many of the established Linux developers who didn’t exactly want this on their plate… but that’s neither here nor there for the purpose of this post, and any of those developers and their fiefdoms who went out of their way to make life difficult for the Rust developers above and beyond what was needed to ensure technical excellence are accountable for these shitty outcomes.
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Here’s the pitch: a motivated group of talented Rust OS developers could build a Linux-compatible kernel, from scratch, very quickly, with no need to engage in LKML politics. You would be astonished by how quickly you can make meaningful gains in this kind of environment; I think if the amount of effort being put into Rust-for-Linux were applied to a new Linux-compatible OS we could have something production ready for some use-cases within a few years.
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Having a clear, well-proven goal in mind can also help to attract the same people who want to make an impact in a way that a speculative research project might not. Freeing yourselves of the LKML political battles would probably be a big win for the ambitions of bringing Rust into kernel space. Such an effort would also be a great way to mentor a new generation of kernel hackers who are comfortable with Rust in kernel space and ready to deploy their skillset to the research projects that will build a next-generation OS like Redox. The labor pool of serious OS developers badly needs a project like this to make that happen.
Follow up to: One Of The Rust Linux Kernel Maintainers Steps Down - Cites "Nontechnical Nonsense", On Rust, Linux, developers, maintainers, and Asahi Lina's experience about working on Rust code in the kernel
Why else would Republicans ban books, keep their children in the dark about other religions and people. So they can keep them on the hate train.