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Linux kernel hacker and maintainer etc.

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jarkko

Jarkko Sakkinen

Reply to @jarkko
Multi-core was already a thing (and Moore's law for single core was reached) when wasm was invented and its execution pipeline is really better fit for hardware that precursors it by multiple years.
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jarkko

Jarkko Sakkinen

Reply to @pinkforest@hachyderm.io
Edited 20 days ago
@pinkforest well yeah of course you need to address contraints when designing "softcore" (i guess this a term?) :-)

First, you need some register space for book keeping (like one or two registers at least) and it unfortunately shares space with softcores registers.

So problem at hand is like:

1. Reduce softcores register space i.e., it will have less registers than host CPU.
2. "Share-and-swap" registers with the softcore for the colliding part.

This of course assumes that ISA is similar enough to x86-64 and aarch64 but that is quite fair constraint to set from the get go for obvious reasons :-)

Anyhow, it will quite simple and sound translation with no artificial stack machines blocking the way :-)
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jarkko

Jarkko Sakkinen

I'm using Servo in the next (0.3.x) version of mailweb, which will no longer open browser like viewhtmlmail.

Instead using servo this will happen when showing HTML mail in mutt:

1. Render page as bitmap(s) to the cache after extracting CID shenanigans using Servo.
2. Page is showed then in the terminal sixel first and fallback to unicode rendering.

This way sixels performance issues won't get in the way and will overall much nice experience than opening a random tab in a browser.

https://crates.io/crates/mailweb

#mutt #viewhtmlmail #mailweb #servo
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jarkko

Jarkko Sakkinen

i wish this was the last day when i hear the word "memory safety" ;-)
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jarkko

Jarkko Sakkinen

there's now easy path to get #servo webviews: https://github.com/nacho/servo-gtk
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jarkko

Jarkko Sakkinen

Reply to @jarkko
Edited 20 days ago
@mjg59 i'm also working loosely with oracle to realize d-rtm i.e. trenchboot i.e. lots of stuff is going to get shuffled anyhow and made more robust and early boot friendly etc. so i think the time is right too. and to add, it would good to see it collide with those changes if there is anything because that might help to make right choices with trenchboot related changes.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@mjg59 and actually in work life someone asked me not like many months ago "would that be possible" explaining roughly encrypted hibernated so there is I think a lot of hidden opportunities for it especially in the embedded world.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@mjg59 and also i'm waiting for situations like this to further refine my small debugging tool for tpm (initated in august): https://crates.io/crates/tpm2sh
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jarkko

Jarkko Sakkinen

Reply to @mjg59@nondeterministic.computer
Edited 20 days ago
@mjg59 please do send patches, in my books it would be feasible feature, and would be also interesting to wire hat up to my buildroot build and vm setup, and a find way to get fast edit-compile-run cycle :-) not promising ack but i can commit with this message to test run it live before giving even a single review comment because it would be a fun challenge.
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jarkko

Jarkko Sakkinen

Edited 20 days ago
WebAssembly is one of the worst ideas in the industry during past 10 years. why end up with stack machine and purposely complicate JIT. Never really grabbed it engineering wise TBH but maybe I'm missing something who knows.

You don't need to be an engineer to get it. It just tends to be easier to find ways map registers to registers, and requires more stretch to move between stack and register machine.
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jarkko

Jarkko Sakkinen

i do want to support the cause but i don't want or am going to create yet another account 🤷 #mastodon
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jarkko

Jarkko Sakkinen

Reply to @oleksandr@natalenko.name
@oleksandr it's entertaining and it has been nice to hook with some old friends so definitely on plus side :-)
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jarkko

Jarkko Sakkinen

Edited 20 days ago
linkedin i scroll posts and spot at least three posts from someexperts about DAC permission and how to decipher them.

dude, you have like left and right plus one more state. i could explain DAC to my mom who does not anything aboutc omputers or permissions and i'm confident that she would get it.

other posts are the usual 2025 AI crap. i made account mostly to backup CV somewhere someday and curiosity after many years away from.

it does deliver shit and i do get some entertainment for boring moments so i guess it is a great service then 🤷
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jarkko

Jarkko Sakkinen

"I’m not glad he’s dead, but I’m glad he’s gone.”

https://www.reuters.com/world/us/former-us-vp-dick-cheney-dead-84-punchbowl-news-says-2025-11-04/
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jarkko

Jarkko Sakkinen

still fresh :-) https://www.youtube.com/watch?v=MLcxve603-4
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jarkko

Jarkko Sakkinen

split zmodem2 into two separate projects:

1. https://crates.io/crates/zmodem2
2. https://crates.io/crates/lrzsz2

this will still need a lot of love before being a production tool but working batch transfers (against lrzsz) is good start.
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jarkko

Jarkko Sakkinen

batch file transfers finally working reliably
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jarkko

Jarkko Sakkinen

I created a cheat sheet of my accumulated custom shortcuts in vim using typst. i'm going to maintain this and capping custom shortcuts to fit into single A4 helps to make sure that things don't get too complicated :-)
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jarkko

Jarkko Sakkinen

going to submit a talk next year to the first linux security summit cfp :-)
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jarkko

Jarkko Sakkinen

  1. https://crates.io/crates/tpm2sh
  2. https://crates.io/crates/tpm2-protocol
  3. https://crates.io/crates/tpm2-crypto
  4. https://crates.io/crates/tpm2-policy-language
  5. https://crates.io/crates/tpm2-tpmkey

i guess you can call this a “developer ecosystem” :-)

#linux #rustlang #tpm

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