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Linux kernel maintainer. Compilers and virtualization at Parity Technologies.
jarkko

Jarkko Sakkinen

I'm a big fan of #linux #kernel #gpu documentation :-) Would make total sense for trusted keys. Especially in crypto seeing code and documentation simultaneously would be an asset.

https://lore.kernel.org/linux-integrity/D05LXJUT7T5Z.39FGAGHVQ6HZH@kernel.org/
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jarkko

Jarkko Sakkinen

tried bc rust alternatives: they seem to improve life by re-inventing the idea with COBOL inspired syntax. #cobol #rustlang

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jarkko

Jarkko Sakkinen

Edited 8 months ago
I don't get administrator account type in #KDE or who would ever use that for anything. It would be nice if this option could be disabled from settings entirely.

Better stick to sudo, polkit etc.
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jarkko

Jarkko Sakkinen

I think that the single biggest security flaw with Intel TDX and AMD SEV-SNP is the lack of spread who can test the features.

E.g. I still test new SGX features with NUC7. It is the latest and greatest in the area for open source community use.

Features like TDX and SNP are by practical means proprietary and closed features with an open source license. They do not drive any major open source projects because they are completely out of reach for the most.

I think this a real shame. E.g. I could find a lot of use for running local daemons sealed with such extra layer of protection.
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jarkko

Jarkko Sakkinen

Edited 8 months ago
I think worst possible question for a job interview I could imagine would be "explain configfs, debugfs, securityfs, procfs, tracefs and sysfs categorizing their roles and differences".

I would not pass.

#linux #kernel
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jarkko

Jarkko Sakkinen

Edited 8 months ago

In Linux kernel maintainer PGP guide I don’t understand the section “Back up your whole GnuPG directory”, and it is also asymmetric with the section discussing paperkey.

AFAIK, this should be sufficient:

gpg --output "priv_0.pgp" --armor --export-secret-key

I do 16 of these and then copy those to an USB stick (i.e. one for each hex digit).

#linux #kernel #pgp

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jarkko

Jarkko Sakkinen

Now that I understand how Ubuntu TPM2 boots looking into OpenSUSE systemd boot version:

- https://news.opensuse.org/2023/12/20/systemd-fde/
- https://www.youtube.com/watch?v=drgo6pvn5hI

I'll check also Fedora albeit I'd guess it is like OpenSUSE (follow cross-distribution standard ways) and unlike Ubuntu (ignoring the common good).
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jarkko

Jarkko Sakkinen

Edited 8 months ago
#amigo is a bliss (and also has a linux version) https://www.youtube.com/watch?v=DB6mkL6x1DE #audio #plugins #commodore #amiga
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jarkko

Jarkko Sakkinen

these have been best #headphone's ive had so far both for #music (listening and producing) and #teams etc meetings. and fully repairable and from recyclable plastic: https://aiaiai.audio/headphones/tma-2-studio-wireless-plus
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jarkko

Jarkko Sakkinen

two copies of me, i like to use different color smiley for each, and name them in web services as "yellow key" etc. :-) #yubikey #openpgp #fido2
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jarkko

Jarkko Sakkinen

Edited 8 months ago
When I backup #OpenPGP private master key to USB stick I tend to do priv_0.gpg, priv_1.gpg up to priv_f.gpg. They are identical but little bit of redundancy should bit more durability. I.e. hex amount of spare copies.
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jarkko

Jarkko Sakkinen

execmem patches v7 providing initial pieces of framework for allocating trampoline executable memory for tracing tools, and kprobes implementation for RISC-V: https://lore.kernel.org/linux-riscv/20240326134616.7691-1-jarkko@kernel.org/T/#t

#tracing #kprobes #linux #kernel
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jarkko

Jarkko Sakkinen

I've been pretty satisfied with #OpenSUSE since I started to use it somewhere in the latter part of last year :-) Some UI workflows are not as off-the-shelf polished as in #Ubuntu but payback comes from mostly relying in the common sense standard compliant solutions and not trying to hack features "not yet possible". And when comparing to other rolling release distributions I find it nice that you get the latest shit but mostly as binary packages so update times are always fast.
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jarkko

Jarkko Sakkinen

Edited 8 months ago
Six months before my contract at the university ends so better start looking for vacancy preferably a safe corporate job. Not too many requirements expect needs to support being a kernel maintainer...
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jarkko

Jarkko Sakkinen

Edited 8 months ago

Hmm.. With DIP switches set to “SDIO” mode, VisionFive2 SBC gives the most informative error message ever:

BOOT fail,Error is 0xffffffff

I’d guess the last value is -1 in 1’s complement format but other than that 🤷

I used #BuildRoot and visionfive2_defconfig. Not sure how feature complete so maybe I will try the official SDK for comparison.

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jarkko

Jarkko Sakkinen

execmem allocator for #tracing and RISC-V support for applying it for #kprobes v6:

https://lore.kernel.org/linux-riscv/20240326012102.27438-1-jarkko@kernel.org/T/#t

#riscv #linux #kernel
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jarkko

Jarkko Sakkinen

Kprobes w/o modules for RISC-V v5

https://lore.kernel.org/linux-riscv/D036FYBQUMIX.L5TL0SUCAO49@kernel.org/T/#t

s/textmem/execmem/ (a typo)

#linux #kernel #kprobes #riscv
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jarkko

Jarkko Sakkinen

Does anyone provide static and pre-compiled #busybox binaries for #riscv? For #x86 busybox.org provides this but other than that I have no idea.
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jarkko

Jarkko Sakkinen

I guess the software version of Moore's law is that software gets exponentially worse as hardware gets exponentially better. For instance, word processors do mostly the same tasks as in 1993 but do not run with 386 and 4 megabytes of RAM :-)
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jarkko
repeated
timojyrinki@mastodon.social

Timo Jyrinki

I love , although ideally we wouldn't be living in a world with such crappy companies in the position these are in the first place.

via @EU_Commission

https://social.network.europa.eu/@EU_Commission/112155867623694063

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