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Linux kernel hacker and maintainer etc.

OpenPGP: 3AB05486C7752FE1
jarkko

Jarkko Sakkinen

I met the original creator of #RTIC last week and what they're doing felt exciting. It is AFAIK the leading hard real-time solution for #Rust. I'm thinking that could something similar as #Jailhouse (a partitioning #hypervisor) be used to provide environment inside Linux to run workloads for something like RTIC . #rustlang
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jarkko

Jarkko Sakkinen

Reply to @sdbbp@mastodon.social
@sdbbp @wamserma Thanks! This very useful, appreciate it! I'm still beginner with the RISC-V ecosystem.
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jarkko

Jarkko Sakkinen

Reply to @wamserma@hachyderm.io
@wamserma JavaScript has this crippled number presentation where number is either 32-bit signed int or a double depending on operation applied.

So they added https://developer.arm.com/documentation/dui0801/h/A64-Floating-point-Instructions/FJCVTZS

:-)
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@polarity @roger_booth i prefer this over phoscyon and abl303 because it does not have e.g. sequencer, yet another delay and stuff like that which is not that useful...
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@roger_booth @polarity e.g. https://midilab.co/jc303/
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jarkko

Jarkko Sakkinen

Reply to @roger_booth@social.bitwig.community
@roger_booth @polarity i could support midilab but do not see any link to make a donation.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
Usually "trusted" is defined as "confidentiality" + "integrity".
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jarkko

Jarkko Sakkinen

Edited 2 years ago
To this day even tho I've contributed #Intel #SGX support to the kernel, I don't know how to check the chain as an end user.

E.g. Signal claims to use Intel SGX. How do I verify that for my benefit? There really should be some sort of universal standard for attestation of SGX/TDX/SNP workloads.

I mean the workload itself can be with a proprietary technology but attestation should be standardised. With that we could perhaps have something like certification chain that goes from data center up to the web browser.

I think confidential computing today is broken because of this and for most somewhat useless, expect in the white papers speaking about military grade security and all that :-) The hardware is expensive, attestation is broken and even the terminology is broken. In normal crypto-terminology confidentiality does not guarantee integrity. Better name would be thus trusted computing and somewhat easier to put into your mouth too. I've hated that term since I first heard about it.
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jarkko

Jarkko Sakkinen

Edited 2 years ago
Another thing learned from local #rustlang meet up. There is one really useful sounding application for #Rust #embedded #USB stack: #firmware updates from web browser.

Some audio hardware uses #WebMIDI for this but this would widen the scope.

I'm not sure tho how the access would be provided to the device if the USB stack was compiled in wasm.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
I was actually surprised how crappy the thing is in the standard ATM but obviously it will get fixed at some point.

Another thing I learned is that ARMv8 has special opcodes for JavaScript :D Fixing a horrible programming language with hardware features is pretty interesting.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@troglobit it took me about a week even to find a form to write anything to the customer service :-) well hidden feature.
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jarkko

Jarkko Sakkinen

Reply to @troglobit@fosstodon.org
Edited 2 years ago
@troglobit amazon goes kafka way with the algorithm...
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jarkko
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thelastpsion@bitbang.social

The Last Psion | Alex

Reply to @thelastpsion@bitbang.social

Side note: The article in that last toot is by the Castle Game Engine project, a game engine entirely in .

At first glance, their docs look to be very clearly written and approachable.

Also, they're written in , stored in a Git repo and turned into a static site. And you all know I love me a bit of AsciiDoc.

Thumbs up from me!

https://castle-engine.io/why_pascal

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jarkko

Jarkko Sakkinen

I learned over the weekend (I was at a local #rustlang meetup) that interrupt controller caps #riscv for competing with #ARM on real-time tasks. I also learned about #CLIC. Just wondering are there any other extensions making waves or is CLIC where the world is converging.

More information:
https://ieeexplore.ieee.org/document/9660345
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jarkko

Jarkko Sakkinen

Reply to @wamserma@hachyderm.io
@wamserma thanks, ya, i send another message to the customer service and see if that brings more positive outcome. to add, my reviews stating what happened were rejected because they don't comply with review guidelines.
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jarkko

Jarkko Sakkinen

Reply to @troglobit@fosstodon.org
@troglobit thanks for the compassion, i'm not even pissed for some reason because the situation is so ridiculous :D cannot honestly believe this
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jarkko

Jarkko Sakkinen

Great my money was literally stolen by #Amazon. No delivery and no refund because 30 days from delivery date was passed. A delivery date, of which I had no idea.
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jarkko
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usul@piaille.fr

Ludovic :Firefox: :FreeBSD:

Coming to fosdem this year? you use ? Want to sign your key? Good news, I'm organizing a key signing party (https://en.wikipedia.org/wiki/Key_signing_party).

details are at https://ludovic.hirlimann.net/2024/01/key-signing-party-at-fosdem-2024.html

please boost or share, so people come and attend.

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jarkko
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monsieuricon

K. Ryabitsev-Prime 🍁

Would be nice if all package managers understood/aliased all common English verbs meaning "remove this package", because I can never remember if it's "remove", "erase", or "uninstall".
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jarkko

Jarkko Sakkinen

Edited 2 years ago
Right, someone reminded me yesterday that if you want rigid memory allocation scheme with heap, you can implement that with heapless crate. It will deliver allocation errors from pre-allocated heap per-allocation. For stuff that I might be doing with #Rust in user space that is good enough.

The de-facto response from Rust application for OOM is panic.

#rustlang
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