My first ever international business trip (in the late 90s) was to Skovde, and that was for software development reasons. So the town has a long history for it.

It’s a nice place too with very nice people.

Packets are lost all the time. Especially when uploading or downloading.

It’s specifically implied? :P

Hah, we used to have some of those AUI to 10Base2 transducers back in the day in the office. Definitely had one on the IBM RS6000/220 box.

Yep, less overheads! This is the way.

When I was talking about memory, I was more thinking about how it is accessed. For example, exactly what actions are atomic, and what are not on a given architecture, these can cause unexpected interactions during multi-core work depending on byte alignment for example. Also considering how to make the most of your CPU cache. These kind of things.

I’d agree that there’s a lot more abstraction involved today. But, my main point isn’t that people should know everything. But knowing the base understanding of how perhaps even a basic microcontroller works would be helpful.

Where I work, people often come to me with weird problems, and the way I solve them is usually based in low level understanding of what’s really happening when the code runs.

I’ve always found this weird. I think to be a good software developer it helps to know what’s happening under the hood when you take an action. It certainly helps when you want to optimize memory access for speed etc.

I genuinely do know both sides of the coin. But I do know that the majority of my fellow developers at work most certainly have no clue about how computers work under the hood, or networking for example.

I find it weird because, to be good at software development (and I don’t mean, following what the computer science methodology tells you, I mean having an idea of the best way to translate an idea into a logical solution that can be applied in any programming language, and most importantly how to optimize your solution, for example in terms of memory access etc) requires an understanding of the underlying systems. That if you write software that is sending or receiving network packets it certainly helps to understand how that works, at least to consider the best protocols to use.

But, it is definitely true.

HR has been rebranded “having relations” in Russia.

But I’ve never played smash. What does that mean? Oh! Oh.

I started playing with rust last week (just converting a couple of C# projects so far), and I’m going to say that once you understand that mutexes/rwlocks are wrappers around the actual data, it (to me at least) feels better.

Don’t get me wrong, it’s an absolute headache for anyone that’s acquired intermediate or better skill in one of the Cx languages. The paradigm shift is still hitting me hard. But this was one of the differences I actually think is an improvement in probably most use cases.

I have auto redirect to 443. But --nginx works fine. I think it overrides stuff for whatever the specific url used is.

There’s a certbot addon which uses nginx directly to renew the certificate (so you don’t need to stop the web server to renew). If you install the addon you just use the same certbot commands but with --nginx instead and it will perform the actions without interfering with web server operation.

You just then make sure the cron job to renew also includes --nginx and you’re done.

It makes sense that they issue short certificates, though. The sole verification is that you own the domain. If you sell/let the domain lapse and someone else takes it over, there’s only a limited time you would hold a valid certificate for it.

An array?

var turtles = new Turtle[] { new Turtle(), new Turtle() };

Don’t do this :P

I think this overall is a better idea. I’m going to say this because, I thought I’d look into rust today. So I installed it, setup vscode to work with it etc. And it’s all up and running. I thought I would port over a “fairly simple” C# project I wrote recently as a bit of a test.

While I’ve generally had success (albeit with 30+ tabs open to solve questions I had about how to do certain things, and only making it about 20% into the task) I’m going to say that it’s different enough from C, C++ and C# (all of which I can work with) that I really don’t think it is fair to expect C developers that have day jobs and work on the kernel in their spare time to learn this. It’s fundamentally different in my opinion.

Now, I don’t condone any bad attitude and pushing away of rust developers from the project. But there’s no way they’re going to want to do anything to help which involves learning a new language. It’s just not going to happen.

Likewise, C is not a language most new developers are learning. So, I feel like over time there won’t be so much of an influx of new kernel developers and any Rust based kernel could find itself with more contributors over time and taking over as the de-facto kernel.

In terms of Redox (not looked into it yet). So long as there’s a different team working on the userspace tools. I would say the main task should be getting a solid kernel with drivers for most popular hardware etc in place. The existing GNU tools will do until there’s a kernel that is able to compete with the C one. But that’s just my opinion.

Ah, so the kind of crypto bro, that instead of a fistbump, does a diffie-hellman key exchange instead?

Here’s what I think. Both opinions are correct.

Rust is sufficiently different that you cannot expect C developers to learn rust to the level they have mastered C in order to be working at the kernel level. It’s not going to happen.

I don’t really know too much about rust. Maybe one day I’ll actually mess around with it. But the one time I looked at a rust git repo I couldn’t even find where the code to do a thing was. It’s just different enough to be problematic that way.

So I think probably, the best way IS to go the way linus did. Just go ahead and write a very basic working kernel in rust. If the project is popular it will gain momentum.

Trying to slowly adapt parts of the kernel to rust and then complain when long term C developers don’t want to learn a new language in order to help isn’t going to make many friends on that team.

That’s got to be extremely rare. Not much you can do in that case. But they will hit many problems with that approach.

That’s weird. I’m getting to the age where I wouldn’t see the point in 4k, I’d need to have my head on top of the screen to see it. But refresh rate can be felt in fluid scrolling etc and definitely even if only on the unconcious level, improves awareness in games too.