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this post was submitted on 30 Aug 2023
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Tainted kernels are not supported. Kernel devs aren't spending time to fix bugs that come from a taint (uses blobs of code that are not open sourced) driver. Because the closed drivers can wreck all kinds of havoc and the kernel devs are helpless to fix the actual "source" of the problem.
There's been all kinds of ways for the kernel to detect tainted binaries. nVidia is notorious for trying to circumvent that detection so that engineers can sit there and blame the kernel for failures.
nVidia has been a massively shit company to the open source community. If I had a list of most anti FOSS companies to ever exist, nVidia would be right behind SCO, with like TiVo behind nVidia. I know it's hard but people who enjoy open source projects shouldn't do business with the company. But if you got to have a nVidia card so be it, but I cannot NOT recommend nVidia enough.
I almost posted comment about this but I had to keep it short. The Nvidia has an problem with their driver tainting the customers kernel/system which renders the customer in bad situation. (Of not being able to get support from kernel devs)
The proprietary taint is there for exactly for this reason:
Nvidia solution to this is breaking the kernel license terms and acting like illegal smugglers in-order to access those sweet sweet GPL-only kernel APIs as lazily as possible. I would say that this is just arrogant and greedy way of doing software development. On top of this the kernel devs get all the blame for their vigilantly of trying to exercise their own license terms.
I think if nvidia would not be this arrogant and vile to the kernel devs, they would already have an proper kernel module that could co-exist between the GPL and proprietary code. If the proprietary code is implemented only in user-space/firmware they can keep their secrets: The user-space <-> kernel-space is an boundary where kernel GPL ends. Implementing such thing would not be easy, but I don't regard it being impossible: look at android.
In extreme: If the hostility continues, kernel devs just might be forced to go invent an corporate blacklist that goes against all principles of co-operation.
Others slightly more sane hw vendors, probably thought: fuck it. It is more profitable to push some FOSS code into the public than keeping the entire thing an trade secret. (I assume this results in the weirdly large firmware blobs that obfuscate and separate the actual hardware from the FOSS drivers)
EDIT: I read more about this issue. From proprietary code vendors viewpoint the current kernel is kind of "GPL or gtfo" situation. Linux kernel doesn't really have an internal stable ABI for modules/drivers. Implementing such thing would require (partly) dropping the monolithic design of the Linux kernel... Such interface would be then able to added to the GPL exemption of syscall users. This would open such big can of worms that it looks to be impossible.