Jarkko Sakkinen
Posts
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492OpenPGP: 3AB05486C7752FE1
Here's something I don't understand: ext2 driver in Rust. Frankly, I just don't get why Microsoft spends money on stuff like that.
Ok, so here's something I WOULD get (assuming that it compiles with GCC because it is a hard constraint): re-write user space interaction points of ext4 driver in Rust and make it call the existing internals.
Then I'd have a patch at hand that is written in Rust and that makes a modest improvement for the sake of better security, i.e. something I can *measure*.
I really try to avoid thinking of liking or disliking patch. If I can measure an improvement that overrides the possible drawbacks, then I see no other choice than carry the patch forward.
Ok, so here's something I WOULD get (assuming that it compiles with GCC because it is a hard constraint): re-write user space interaction points of ext4 driver in Rust and make it call the existing internals.
Then I'd have a patch at hand that is written in Rust and that makes a modest improvement for the sake of better security, i.e. something I can *measure*.
I really try to avoid thinking of liking or disliking patch. If I can measure an improvement that overrides the possible drawbacks, then I see no other choice than carry the patch forward.
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@jani I look mainly at the data. Firefox at 20% (2017-2024) now. Based on that my rough guess would be that within 5-7 years timeline we have 20% * 0.1 (complexity factor out of top of my head) = 2% of code that is in some defconfig. That is probably also about the time needed to GCC-Rust to catch up, which is literally a hard constraint because a defconfig's need to compile only with a GCC toolchain.
I don't think making Linux clang only would ever receive a positive response. Why I see defconfig level adoption happening in a longer timeline is that in input validation and all kinds of syscall/uapi layer stuff Rust adoption would have undebatable benefits.
I believe I have fairly weighted argument. I've used professionally Rust in user space code since 2022 (and actual low-level stuff like memory manager for Intel SGX enclaves), which I believe gives some basis also for my guess.
Like AI, blockchains, pick-your-hype-tech it is IMHO both uneducated to say that they are a hoax, and also that they solve every possible problem.
I don't think making Linux clang only would ever receive a positive response. Why I see defconfig level adoption happening in a longer timeline is that in input validation and all kinds of syscall/uapi layer stuff Rust adoption would have undebatable benefits.
I believe I have fairly weighted argument. I've used professionally Rust in user space code since 2022 (and actual low-level stuff like memory manager for Intel SGX enclaves), which I believe gives some basis also for my guess.
Like AI, blockchains, pick-your-hype-tech it is IMHO both uneducated to say that they are a hoax, and also that they solve every possible problem.
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Jarkko Sakkinen
jarkko
NIST's post-quantum key exchange algorithm is called "CRYSTALS-Kyber" 🤣 I guess NIST also has had a "brat summer". #NIST #cryptography #quantum
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Jarkko Sakkinen
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Fedi.Tips
FediTips@social.growyourown.servicesYou can use Mastodon on many retro computer systems:
Apple II - https://www.colino.net/wordpress/en/mastodon-for-apple-ii
Apple Macintosh (pre-OS X) - https://github.com/smallsco/macstodon
Commodore 64 - https://github.com/Havoc6502/MOStodon
Commodore Amiga - https://github.com/BlitterStudio/amidon
MS-DOS - https://github.com/SuperIlu/DOStodon
MVS - https://github.com/mainframed/BREXXTODON
Palm OS - https://github.com/knickish/heffalump
Windows 95 - https://github.com/meyskens/mastodon-for-workgroups
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Jarkko Sakkinen
jarkko
@hgfernan So for example:
https://openhub.net/p/firefox/analyses/latest/languages_summary
Native ("non-XUL") code covers 49.1% so Rust's share is slightly better but I think I got it roughly correct ;-)
https://openhub.net/p/firefox/analyses/latest/languages_summary
Native ("non-XUL") code covers 49.1% so Rust's share is slightly better but I think I got it roughly correct ;-)
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Accepting the reality, breathing once in a while (instead of holding your breath all the time) and thinking that you are doing a long journey instead of a fast track would be in my opinion the signs of sanity when it comes to "community friction" ;-)
If getting frustrated that it might be even a good idea to write your own OS from scratch or something similar, and take a break from Linux. There's bunch of fostering work in that area especially when it comes to special purpose OS's. It's good for Linux too since all the innovation for any operating system will reflect innovation to other operating systems.
I personally have phases in Linux and that way keep hanging in the community. Right now I don't do much active development but still review and test patches and stuff like that. My implementation efforts are completely elsewhere (should finish hardware backed asymmetric keys tho some day, last update for that patch set in April ;-) ).
This way any Linux madness does not get into me too personally: I have other nolife too ;-)
If getting frustrated that it might be even a good idea to write your own OS from scratch or something similar, and take a break from Linux. There's bunch of fostering work in that area especially when it comes to special purpose OS's. It's good for Linux too since all the innovation for any operating system will reflect innovation to other operating systems.
I personally have phases in Linux and that way keep hanging in the community. Right now I don't do much active development but still review and test patches and stuff like that. My implementation efforts are completely elsewhere (should finish hardware backed asymmetric keys tho some day, last update for that patch set in April ;-) ).
This way any Linux madness does not get into me too personally: I have other nolife too ;-)
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Jarkko Sakkinen
jarkko
Firefox has been using Rust since 2017 and about fifth of its code that was previously in C/C++ has been written in Rust (see Oxidation sub-project).
I'd expect slower cycle for Linux than Firefox. I think this would be likely truth for operating system with decades of legacy (e.g. BSD derivatives).
This makes me think that making any conclusions after two years is simply not a pragmatic mindset.
#rust #linux #kernel
I'd expect slower cycle for Linux than Firefox. I think this would be likely truth for operating system with decades of legacy (e.g. BSD derivatives).
This makes me think that making any conclusions after two years is simply not a pragmatic mindset.
#rust #linux #kernel
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Jarkko Sakkinen
jarkko
@Aissen Very cool and interesting project! Another I had no even slight idea of.
Having worked with RISC-V for over past year or so (and continuing to do so albeit as byte code in PolkaVM), at this point of time I don't have a lot of faith in it when it comes to "with MMU" use cases.
This has made me hope that OpenMIPS would get some air under its wings (commercially) in such use cases both because RISC-V does not really deliver in that area, and secondly because competition would enforce it to deliver. Maybe there is also just some plain love for its legacy (SGI, Playstation 2, Nintendo 64 for etc) ;-)
Having worked with RISC-V for over past year or so (and continuing to do so albeit as byte code in PolkaVM), at this point of time I don't have a lot of faith in it when it comes to "with MMU" use cases.
This has made me hope that OpenMIPS would get some air under its wings (commercially) in such use cases both because RISC-V does not really deliver in that area, and secondly because competition would enforce it to deliver. Maybe there is also just some plain love for its legacy (SGI, Playstation 2, Nintendo 64 for etc) ;-)
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Jarkko Sakkinen
jarkko
First thought I had this morning was that I started wondering if you could make "ChatGPT - The Board Game".
Each player would have 4x4 grid that would be educated during game, taking inspiration from mechanical matchbox tic-tac-toe player from 60s. And decision making would based on the conclusions of the AI and player.
Simplifying machine learning feedback ideas could foster some cool ideas for board games ;-)
Each player would have 4x4 grid that would be educated during game, taking inspiration from mechanical matchbox tic-tac-toe player from 60s. And decision making would based on the conclusions of the AI and player.
Simplifying machine learning feedback ideas could foster some cool ideas for board games ;-)
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Here are the links for each part:
- https://www.nccgroup.com/us/research-blog/rustproofing-linux-part-14-leaking-addresses/
- https://www.nccgroup.com/us/research-blog/rustproofing-linux-part-24-race-conditions/
- https://www.nccgroup.com/us/research-blog/rustproofing-linux-part-34-integer-overflows/
- https://www.nccgroup.com/us/research-blog/rustproofing-linux-part-44-shared-memory/
I’m putting these here as the in-article links apparently have not been updated
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Jarkko Sakkinen
jarkko
Edited 1 year ago
Fresh ideas for remote attestation (vs Intel and AMD CA):
https://pom.ata.network/
#confidential #computing #machinehood
https://pom.ata.network/
#confidential #computing #machinehood
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Jarkko Sakkinen
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AI slide for the talk (work in progress):
AI does not save us
AI fools researchers think they found problems
AI assisted reports take longer to debunk
AI is an added burden for maintainers
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