this post was submitted on 23 Apr 2024
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Linux

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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[–] [email protected] 33 points 6 months ago (18 children)

Great reason to push more code out of the kernel and into user land

[–] [email protected] 31 points 6 months ago* (last edited 6 months ago) (4 children)
[–] [email protected] 2 points 6 months ago (1 children)

L4. HURD never panned out, and L4 is where the microkernel research settled: Memory protection, scheduling, IPC in the kernel the rest outside and there's also important insights as to the APIs to do that with. In particular the IPC mechanism is opaque, the kernel doesn't actually read the messages which was the main innovation over Mach.

Literally billions of devices run OKL4, seL4 systems are also in mass production. Think broadband processors, automotive, that kind of stuff.

The kernel being watertight doesn't mean that your system is, though, you generally don't need kernel privileges to exfiltrate any data or generally mess around, root suffices.

If you want to see this happening -- I guess port AMDGPU to an L4?

[–] [email protected] 1 points 6 months ago

seL4 is the world’s only hypervisor with a sound worst-case execution-time (WCET) analysis, and as such the only one that can give you actual real-time guarantees, no matter what others may be claiming. (If someone else tells you they can make such guarantees, ask them to make them in public so Gernot can call out their bullshit.)

That bit on their FAQ is amusing.

[–] [email protected] 3 points 6 months ago (2 children)
[–] [email protected] 1 points 6 months ago

Interesting, but why implement yet another windowing system?

[–] [email protected] 4 points 6 months ago (1 children)
[–] [email protected] 1 points 6 months ago (1 children)
[–] [email protected] 4 points 6 months ago

It means anyone including microsoft or apple can use the code contribution or take the entire softwarw and make some modifications and sell it proprietary. Any optimisations or features made by community can be proprietarised

[–] [email protected] 14 points 6 months ago (1 children)

I dunno, Stallman, it's been 30 years, you got something for us?

[–] [email protected] 1 points 6 months ago

I'd just like to interject for a moment. What you’re refering to as Linux, is in fact, GNU/LInux, or as I’ve recently taken to calling it, GNU plus Linux. Linux is not an operating system unto itself, but rather another free component of a fully functioning GNU system made useful by the GNU corelibs, shell utilities and vital system components comprising a full OS as defined by POSIX.

[–] [email protected] 5 points 6 months ago (1 children)

I think we should just resurrect Plan 9 instead.

[–] [email protected] 3 points 6 months ago (1 children)

Plan 9 is also monolithic, according to wikipedia. For BSD it depends.

[–] [email protected] 3 points 6 months ago (1 children)

I mean, you're right but I still want to see a modernized plan 9, I just think it would be neat.

[–] [email protected] 2 points 6 months ago (1 children)
[–] [email protected] 1 points 6 months ago

Latest release was 9 years ago, not exactly what I'm looking for. 9front is probably closer to what I want than inferno.

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