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Linux kernel hacker and maintainer etc.

OpenPGP: 3AB05486C7752FE1
@roxedus yeah, not criticizing, i was just wondering how things are :-)
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Jarkko Sakkinen

So that you know, this is the correct path to export AAVMF (counter-intuitively when comparing to x86-64):

https://gitlab.com/jarkkojs/linux-tpmdd-nixos/-/commit/f24224f0065df3376649e21492a1475f225d95e0

Took a while to figure this out :-)

Also figured out the appropriate options on macOS (with Apple Silicon) how to launch my build with QEMU:

# After doing docker compose up --build:
qemu-system-aarch64 -machine virt -cpu host -accel hvf -m 2G -nographic -bios output/firmware.fd -hda output/tpmdd-nixos.qcow2

I think I've now substituted my legacy BuildRoot environment with this NixOS based system, and gained some new benefits, such as being able to do aarch64 kernel development on macOS and test Rust kernel code.

Next up: send MAINTAINERS update (BuildRoot -> NixOS).

I guess my last week of holiday has been spent well :-)

#linux #kernel #nix #nixos
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... please don't take this dead seriously ;-)
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Jarkko Sakkinen

Edited 4 months ago
Nix:

1. Claims to be a functional language.
2. Still complains about declaration order.

I purposely put declarations in alphabetical order in my kernel testing shenanigans because I thought that it would stand the test.

What disappointment ;-)

#nix #nixos
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@roxedus Dracut is just initrd generator so it is does not do whole a lot...
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@roxedus Hmm... so systemd does not have anything like sbctl? :-) I'm lagging behind of its latest feature at least couple of years.

I wonder also that what is the existential reason of having Dracut when we have bootctl, UKI and systemd-cryptenroll, i.e. perhaps we could in the future render out some of this complexity...

Thanks for the write up anyhow!
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Marcin Juszkiewicz 🙃

In 2012, right before aarch64 toolchain became public, I wrote a post "what interest me in Arm world".

During last months I was thinking should I write an update.

There is a plan for a new blog post then. Content would not surprise.

https://marcin.juszkiewicz.com.pl/2012/09/29/what-interest-me-in-arm-world/

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@aldonogueira Yeah, Vulkan is fine as feature, i.e. if it exists, then it can be utilized.

Not implementing a supplemental rendering pipeline is a definition of unfinished product :-)
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Jarkko Sakkinen

Edited 4 months ago
I tried for a while Zed as GUI editor, as I like the model where I use vim heavily, and some separate GUI editor for more like code browsing and understanding what I'm looking at (and meetings).

It's great in some areas but once you end up situation where you don't have your GPU driver temporarily available you are literally fucked. LLVMpipe experience is a horror story.

That's why I've returned on using my paid version of Sublime Text when I need a GUI editor because it just works in all situations and hardware generally quite well. It has both well implemented software and GPU pipelines.

This is also why I would look at its performance comparisons with a grain of salt as you could call Zed as unfinished implementation. It's not uncommon to boot a machine to some kind safe or rescue mode and it still would be nice to have full text editor experience.
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@jwildeboer right i had forgotten that one :-)

I like how Fediverse transforms Internet economy from feudalism from capitalism, and that is why I strongly support this movement.

It makes Internet like a city with shops or chain of shops (instance or network instances) instead of a castle owner (like Bezos) owning the market square where all the trade happen, collecting heavy taxes and generally enslaving people. And being against this is called by some as communism, which does not fit to my logic at all.

I don't know how other people see it but in my world view there is no healthy market capitalism on Internet. It's actually medieval times economy that we have at the moment. What e.g. Fediverse implements is democracy and capitalism which provides breathing space for small business owners. Right now we all are like land slaves.
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@jwildeboer it's a genuine feature in this platform, i.e. genuine in tech vs genuine in ideology.

This is why I believe that in long-term Servo will be a great success also commercially: it's not just free software no strings attached to Mozilla or Google. It's also superior in tech e.g. considering its GPU-first rendering pipeline, and multi-core design. Competitors have duct taped software rendering pipelines into compositors over the years but GPU is not in the genes of Gecko or Chromium. Also they are not that great spreading the workloads at high granularity to multiple CPU cores.
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@jwildeboer I'm waiting for someone to realize that Mastodon and Fediverse could be used as platform for code sharing sites :-) E.g., heavily customized Mastodon instance just for sharing snippets (like gists).

This is where I see strong potential for also commercial use: social development tools. Would be IMHO perfect place for Red Hat to step in and show how it's done ;-)
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@jwildeboer example :-) https://social.kernel.org/notice/AgzHqrYFGplZuYr3gG

should start using some standard hashtag for these...
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@rjzak I'm reading the Ghidra book now slowly. I'm switching job and had this month holiday, so what I did was to buy total nine books from No Starch ;-) Will take probably over a year finish all of them as I'm not a fast reader... Anyway Ghidra book was one of them
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@jwildeboer some stuff i put as snippets to mastodon and then use bookmarks-feature to retrieve them later. it is sort of obfuscated version of gists :-) posts in mastodon have all the basic features for gists such as version history and comments.
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@jwildeboer nice! i hope codeberg will get gists too some day.
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Jarkko Sakkinen

Edited 4 months ago
Data source injection will definitely be a thing in AI-powered world. Especially in state level actors can implement this at scale and indirectly orchestrate both the learning process of LLM's and execution process of AI powered services (as many of them combine the static LLM with external resources scavenged during execution).

Michael Pound is pretty known researcher in various topics so definitely worth of watching:

https://www.youtube.com/watch?v=rAEqP9VEhe8

#ai #infosec
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Jarkko Sakkinen

A short tutorial on how to get basic open source #FPGA #toolchain on #macOS, and running a trivial Verilog example:

https://datacore.nanographs.io/000+Publish/Installing+the+Open+Source+FPGA+tool+chain+on+Mac

The same tools are widely available on Linux distributions just using the standard packaging tools, thus this Mac post :-)
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