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Linux Kernel Teaching

linux-kernel-labs.github.io

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Re: Linux Kernel Teaching

#41

Post by saagarjha »

stefan_ wrote: post #29
saagarjha wrote: post #21

Someone here probably knows this, so I figured I'd ask: I submitted a small patch to the kernel a while back and I made a typo in it and it broke the tests, and then I couldn't figure out how to get the test bot to pick up my new patch and by that point I assume anyone who would possibly have reviewed my patch stopped bothering. Is there something I should do to get it looked at again?

If your original patch contained a mistake, you just send the new version with the v2 prefix to the mailing list. You can do this with git format-patch -v2 and then send-email will pick it up automatically. You should note the change in the individual commit or the cover letter.

Hmm, I’ll take a look. I think I manually did some munging of the subject line to add “v2” where it seemed appropriate but I probably did it wrong.

Re: Linux Kernel Teaching

#42

Post by saagarjha »

rustybolt wrote: post #33
rtkaratekid wrote: post #30

Started getting into kernel stuff for work. Does anyone have a good idea what kind of market demand there is for kernel devs or similar skill sets? Being new to this I absolutely love it, but have no idea. The resources shared by everyone here are so helpful! I’ve been muddling through by reading the docs, source code, and various messages on the mailing list and... it’s been a little painful.

The direct demand is low; the Linux kernel is open source so framing yourself as a 'kernel developer' probably is not a very good way to be an ideal candidate for a job opening. On the other hand, most developers and even some non-developers recognize that kernel development is hard. If you have a name in the kernel development world this will certainly help your reputation. Likewise, if you have a good knowledge of…

> the Linux kernel is open source

I’m not sure I understand why this is a bad thing?

Re: Linux Kernel Teaching

#43

Post by salawat »

highspeedmobile wrote: post #34
jfkebwjsbx wrote: post #20

Earlier quoted context omitted.

Prehistoric? It is actually how the Git workflow was designed to work, and it is a standard method that does not require third-party services nor tools. Just your mail agent. Sending patches is as easy as sending one in GitHub or any other web-based system. The problem is that you (and many others) have never done it, and so anything different is harder. You should consider that if learning a handful of CLI commands…

> Sending patches is as easy as sending one in GitHub or any other web-based system. Its still prehistoric in projects like the Linux Kernel, from a beginners point of view compared to GitHub, Gerrit or GitLab, which most of the active contributors are already working at large companies who's work requires contributing to it, thus already have invested in time and money learning the contribution process. To look at t…

Here's the thing.

Take GitHub, and boil it down, and it's a mish mash of version control, diff, and patch, all plastered over with a shiny HTTP veneer.

Diff/patch, git, and email alone are the basic tools you need. Even before VCS was a really big thing, that is how software changes were propagated around.

There is nothing wrong with sticking with the basics. In fact, I flat out refuse to tell newbies that they should host everything on GitHub, or GitLab. It's becoming a twisted new form of "social media-esque" hype.

Re: Linux Kernel Teaching

#44

Post by amiga »

saagarjha wrote: post #42
rustybolt wrote: post #33

Earlier quoted context omitted.

The direct demand is low; the Linux kernel is open source so framing yourself as a 'kernel developer' probably is not a very good way to be an ideal candidate for a job opening. On the other hand, most developers and even some non-developers recognize that kernel development is hard. If you have a name in the kernel development world this will certainly help your reputation. Likewise, if you have a good knowledge of…

> the Linux kernel is open source I’m not sure I understand why this is a bad thing?

Proprietary in contrast eliminates competition for the job - no source to study

Re: Linux Kernel Teaching

#45

Post by ivanfon »

I miss the Eudyptula Challenge [0], I never got around to complementing it. It was a series of 20 challenges to introduce you to Linux kernel development, and it was done entirely over email. I think it's been shut down for a few years now, I'm not sure when or if it'll come back at this point.

[0] http://eudyptula-challenge.org/

Re: Linux Kernel Teaching

#46

Post by PopeDotNinja »

rtkaratekid wrote: post #30

Started getting into kernel stuff for work. Does anyone have a good idea what kind of market demand there is for kernel devs or similar skill sets? Being new to this I absolutely love it, but have no idea. The resources shared by everyone here are so helpful! I’ve been muddling through by reading the docs, source code, and various messages on the mailing list and... it’s been a little painful.

You might consider going through the git commits, find authors, and investigate where they work.

Re: Linux Kernel Teaching

#47

Post by kqr »

rtkaratekid wrote: post #30

Started getting into kernel stuff for work. Does anyone have a good idea what kind of market demand there is for kernel devs or similar skill sets? Being new to this I absolutely love it, but have no idea. The resources shared by everyone here are so helpful! I’ve been muddling through by reading the docs, source code, and various messages on the mailing list and... it’s been a little painful.

If you're doing reliability engineering for any type of service running on Linux servers, being well-versed in the kernel is a great power that separates you from others.

Re: Linux Kernel Teaching

#48

Post by rtkaratekid »

eatonphil wrote: post #39
rtkaratekid wrote: post #30

Started getting into kernel stuff for work. Does anyone have a good idea what kind of market demand there is for kernel devs or similar skill sets? Being new to this I absolutely love it, but have no idea. The resources shared by everyone here are so helpful! I’ve been muddling through by reading the docs, source code, and various messages on the mailing list and... it’s been a little painful.

Security product companies like mine (Capsule8), Crowdstrike, Sysdig, etc. will always be looking for software developers with a background in Linux (or Windows) development.

That’s good to hear. I work in security currently

Re: Linux Kernel Teaching

#49

Post by robbyt »

rtkaratekid wrote: post #30

Started getting into kernel stuff for work. Does anyone have a good idea what kind of market demand there is for kernel devs or similar skill sets? Being new to this I absolutely love it, but have no idea. The resources shared by everyone here are so helpful! I’ve been muddling through by reading the docs, source code, and various messages on the mailing list and... it’s been a little painful.

Many of the bigger SV tech companies have an internal kernel/os team.

Re: Linux Kernel Teaching

#50

Post by eatonphil »

rtkaratekid wrote: post #48
eatonphil wrote: post #39

Earlier quoted context omitted.

Security product companies like mine (Capsule8), Crowdstrike, Sysdig, etc. will always be looking for software developers with a background in Linux (or Windows) development.

That’s good to hear. I work in security currently

We're hiring. :) Email me (address in bio) if you have experience doing kernel development, reverse engineering, debuggers, emulators, compilers, etc. We do cool stuff.
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