linux VS freeCodeCamp

Yeah same, we maintain some eBPF probes spanning 4.11 to latest kernel, and holy hell, it's really bad. The worst offender being some old RedHat kernels with half-baked backports of the eBPF features containing a bunch of weird bugs or features that aren't perfectly in line with what's used in mainline...

Here's a fun bug we recently had: we had to ban substractions in our program (replacing them with an __asm__ macro) because of a bug in linux kernel 5.7.0 to 5.10.10, which had the (indirect) impact of not properly tracking the valid min/max values in the verifier[0]. The worst part is, it didn't cause the verifier to reject our program outright - instead, it used that information to optimize out some branches it thought were never reachable, making for some really wonky to debug situation where the program was running an impossible control-flow[1], resulting in it returning garbage to user-space.

All this to say, CORE is really only half the problem. Supporting every kernel in existance is still a huge effort. Still worth it compared to the alternative of writing a linux kernel driver though!

[0]: https://github.com/torvalds/linux/commit/bc895e8b2a64e502fbb...

[1]: https://github.com/torvalds/linux/blob/bc895e8b2a64e502fbba7...

I built a fast tree builder for any public GitHub repo via the linux shell.

`gitterbugs` (gbgs) clones, analyzes and renders a beautiful, readable and size-annotated tree of any GitHub repository in seconds.

For example, `gbgs https://github.com/torvalds/linux` produces:

```

> Anyone has seen his position on this topic?

Well, he's not a fan of GitHub pull request as per the last decade.

https://github.com/torvalds/linux/pull/17#issuecomment-56546...

Might not.

Rust has a state of the art sort implementation. There’s nothing faster, in any language - https://github.com/rust-lang/rust/pull/124032.

And sure, it’s possible that someone could write a C program that compares in speed to all the Rust programs I’ve mentioned. C is a Turing complete language after all. I’m only pointing out that it hasn’t happened in practice.

Also check the Android Binder code before (C https://github.com/torvalds/linux/blob/master/drivers/androi...) and after (Rust - https://android.googlesource.com/platform/frameworks/native/...). Same speed but the quality difference, it’s incomparable.

> I wonder if Linux is re-written i(n) (sic) rust will it too remove GPL as a factor ?

No reason it must? AFAIK all Rust for Linux code is GPL2. For example see: https://github.com/torvalds/linux/blob/master/rust/kernel/al...

If some was or were to be licensed as MIT code, there is also plenty of dual licensed code in the Linux kernel.

There are some hints regarding email clients here: https://github.com/torvalds/linux/blob/master/Documentation/...

> The idea behind Pledge/Unveil was first in Landlock also.

This is so obviously, and verifiably untrue, that it's almost funny. The patch series and kernel commit adding Landlock to the Linux kernel even references OpenBSD pledge(2)/unveil(2).

https://github.com/torvalds/linux/commit/17ae69aba89dbfa2139...

https://lore.kernel.org/linux-security-module/20210422154123...

From github.com/torvalds/linux on 2025-02-19.

Interesting, thanks for sharing. We ended up solving our problem another way by adding this `DisableControllers` stanza to the service's systemd configuration: https://gist.github.com/dasl-/87b849625846aed17f1e4841b04ecc...

I believe the kernel's cgroup writeback accounting features are enabled / disabled based on this code: https://github.com/torvalds/linux/blob/c291c9cfd76a8fb92ef3d...

1️⃣2️⃣ Free Code Camp Curriculum 🎓 📌 https://github.com/freeCodeCamp/freeCodeCamp A free interactive coding platform with real-world projects.

The freeCodeCamp repository is a really good resource for learning web development. It has the backend code for the freeCodeCamp website, which offers free coding lessons, challenges, and certifications. This is a really good resource to learn how a production website that has millions of users is built and maintained. It has 409k stars 🌟. Check it out here.

Stars ⭐ : 408K Repo Link

Here is my PR: https://github.com/freeCodeCamp/freeCodeCamp/pull/56497

Visit the freeCodeCamp repository and clone it locally.

🎓 Project: FreeCodeCamp 💡 Why Contribute: FreeCodeCamp is one of the largest coding education platforms in the world. By contributing to their codebase, you help improve learning experiences for thousands of students globally. From curriculum improvements to fixing bugs in their platform, there’s always a way to help.

Read their Hactoberfest contribution guideline

Naturally, we got curious. How does the freeCodeCamp repository manage to pull this off with such precision? So, we strapped on our thinking caps and started digging into their deployment stats, workflows, and codebases.

I'm a beginner in frontend development, currently only familiar with basic HTML and JavaScript. I'm looking to learn React next and considering using freeCodeCamp (https://github.com/freeCodeCamp/freeCodeCamp) as my learning resource.

Has anyone here used freeCodeCamp for learning frontend, especially React? How was your experience? Is it effective for self-learners?

I'd appreciate any insights on: