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Linux kernel hacker and maintainer etc.

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jarkko

Jarkko Sakkinen

tdf is super nice previewer when doing presentations, have "typst watch" refreshing it :-)

BTW, diagram is also made with Typst.
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jarkko
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greenpeace@mastodon.social

Greenpeace International

57 companies are responsible for 80% of the global greenhouse gas emissions since 2016.

Unless you run those companies, why are you being forced to pay for climate change damage?

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jarkko

Jarkko Sakkinen

I've uplifted tpm2-tpmkey [1] to address quirks of the TPM policy command encoding in the ASN.1 [2] spec.

It has quite short errata now: TPM2_PolicyAuthorize returns InvalidPolicy (which will be addressed some day). Other than that it addresses empty policies, special handling for TPM2_PolicySecret and other weirdness.

Plus, has 'parentPublic" extension, which enables implict and automatic parent key discovery.

Other than this crate is decoupled from all crypto libraries, other than pem crate and implementing encoder and decoder with rasn. I
Lot's of stuff have been piled, so it needs boil for a while after all these changes but now it is at least in the ballpark.

[1] https://docs.rs/tpm2-tpmkey/latest/tpm2_tpmkey/
[2] https://www.hansenpartnership.com/draft-bottomley-tpm2-keys.txt
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jarkko

Jarkko Sakkinen

bpftop is super nice (just learned about its existence)
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jarkko

Jarkko Sakkinen

Is there some "good known" ECDH reference income-outcomes documented? Lacking unit tests for ECHD in tpm2-crypto. OK, I'll go check RFC first ;-)

#linux #tpm #rustlang
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jarkko
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phoronix@masto.ai

Phoronix

sudo-rs Affected By Multiple Security Vulnerabilities - Impacting Ubuntu 25.10

The Ubuntu 25.10 transition to using some Rust system utilities continues proving quite rocky. Beyond some early performance issues with Rust Coreutils, breakage for some executables, and broken unattended upgrades due to a Rust Coreutils bug, it's also sudo-rs now causing Ubuntu developers some headaches. There are two moderate security issues affecting su…
https://www.phoronix.com/news/sudo-rs-security-ubuntu-25.10

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jarkko

Jarkko Sakkinen

Reply to @tshepang@hachyderm.io
@tshepang i just wanted to see how it works and see if i could bend it do stuff i was doing :-)

i did not observe any actual functional issues.
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jarkko

Jarkko Sakkinen

Reply to @jwildeboer@social.wildeboer.net
@jwildeboer and we should enforce apple to unlock the bootloader, at bare minimum when they stop supplying operating system updates :-)
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jarkko
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jwildeboer@social.wildeboer.net

Jan Wildeboer 😷krulorange

Edited 5 days ago

In my personal opinion: Instead of banning, say, Chinese companies from delivering infrastructure components like the EU is pondering with Huawei and mobile networks, the ultimate goal should be to demand open source software/firmware for these components and reproducible builds of all software components so becomes default.

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jarkko

Jarkko Sakkinen

Reply to @jarkko
@tshepang and not saying this is the exact pattern what should be followed. Just one way to look at the problem. Being ubiquitos and maximizing deployabiltiy and being "at the bleeding edge" tend to be two contradicting goals that exist in any possible language and tool ecosystem, and thus they need to be balanced out.
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jarkko

Jarkko Sakkinen

Reply to @tshepang@hachyderm.io
Edited 5 days ago
@tshepang OK thanks, that is fair question :-) I just answer always based on context.

For a project like Gix I'd probably ollow Debian stable's rustc if possible (by realistic measures).

And if rustc in stable is getting old lookup:

1. If backports has a newer version consider that.
2. If testing branch of Debian has been freezed that might also be good choice.

I picked Debian because it has the most concervative baselines overall. If you can maintain your project within those constraints your Linux distribution converage is literally all the major Linux operating systems in existence.

And yeah sorry, of course I will retry Gitoxide one day again when I get out of recent frustrations with it. You just have to say one nasty childish thing to get over it :-) Sorry about that.
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jarkko

Jarkko Sakkinen

I wrote my views about AI policy proposal:

https://lore.kernel.org/all/aRKeLRx2NeozFUrc@kernel.org/

#linux #kernel #ai
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jarkko

Jarkko Sakkinen

Reply to @tshepang@hachyderm.io
@tshepang none because it is a context dependent question
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@ljs personally, when i see patch think "why that person needs this" or 'why company X needs this" and stuff like that. Bots don't need any of the changes they supply, which is a problem (at least for me). I don't want to serve the needs of those who don't have needs because well, it's fucking crazy for instance :-)
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jarkko

Jarkko Sakkinen

Reply to @ljs@mastodonapp.uk
@ljs That proposal clearly at least misunderstands kernel development as "a task solving a computational problem in a vacuum" :-) It is hard to interpret that text by any other means.
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jarkko

Jarkko Sakkinen

Reply to @lkundrak@metalhead.club
@lkundrak the nam shub of enki and kiki ill, top of the pops from australia (including macarena) https://namshubofenki.bandcamp.com/album/the-nam-shub-of-enki-meets-kiki-ill-in-the-valley-of-mood
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jarkko

Jarkko Sakkinen

Reply to @lkundrak@metalhead.club
@lkundrak https://www.dailymotion.com/video/xgwgrv
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jarkko

Jarkko Sakkinen

Reply to @penguin_brian@hachyderm.io
Edited 6 days ago
@penguin_brian TBH, it is gibberrish :-)

Thanks for asking. I was trying to refer to minimum supported rust version (MSRV).
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jarkko

Jarkko Sakkinen

Reply to @jarkko
Pipeline is also float free with subpixel accurate integer rendering to keep shit simple and translatable.

And I do have a plan to get a real scrolling experience not just page flipping (to what sixel actually scales). I just need to test my theory first...
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jarkko

Jarkko Sakkinen

Edited 6 days ago
Developing a rendering engine for mailweb 0.3. The gist in that is Servo rendering the mail as a set of offline rendered tiles.

Given that Servo is complicated I'm figuring offline rendering part in a separate project.

I needed some tileable content to work with so I wrote "a classic" fractal cloud generator out of my memory (decades ago literally) ("diamond alike" recursion and periodic perlin noise) :-)

This was also great finding: https://github.com/rust-windowing/softbuffer
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