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Linux kernel hacker and maintainer etc.

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jarkko

Jarkko Sakkinen

#remindertomyself

$ ps -T -o comm,policy,rtprio -p $(pgrep -w -d ',' irq) | egrep '(snd|hci)'
irq/148-xhci_hc FF      85
irq/147-ahci[00 FF      50
irq/203-snd_hda FF      90
irq/204-snd_hda FF      90
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jarkko

Jarkko Sakkinen

#renewed my accidentally #expired
@lwnnet #subscription. unintentionally i had used single time payment last year (before that i was using corporate subscription while i was still working at intel). now it is set to automatic payment like it should be :-)
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jarkko

Jarkko Sakkinen

i have now kind of "#intel of the present day" #desktop configurtion in my main #development machine: i9-13900k with 64GB of DDR and Intel Arc A770 GPU.

ive been waiting the day to get rid of shitty #nvidia #hardware, causing all the time compatibility issues...
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jarkko

Jarkko Sakkinen

on #macos (which I have in my #university laptop, thus learning the ways) the easiest way to do #linux #kernel development and testing is podman (brew install podman). each container will have a #QEMU instance backing it up.

that sorted out, using macos does not really make any difference, as full-screen #tmux is pretty much the same always :-) any desktop that can launch a web browser is good enough desktop for me really...
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jarkko

Jarkko Sakkinen

this is how i deal with #password's. i protect the critical passwords with #PGP public key. Any password where #leakage is not an existential question is offloaded to #lastpass. The keyring itself is protected by #yubikey. i feel overally pretty safe :-)
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jarkko

Jarkko Sakkinen

Considering #Apple silicon #MacBookPro’s: #VMware #Fusion combined with an #external #drive is an option worth of considering for running #Linux.

By provisioning direct access (aka pass-through) to the USB device for the guest, VFS and page cache of the host OS get surpassed, and disk access is as fast as it can ever be.

The resulting hard drive is (obviously) a real bootable Linux installation, not a VM image, which can turn out to be a real life-saver some day (e.g. if laptop dies).

For #development tasks the resulting overhead compared to a #native installation should rarely be any sort of problem because #throughput is nearly identical. The resulting #latency hit matters only for soft real-time (e.g. video post-production and along the lines).

I got MBP from @NISEC_TAU, so I have had to find a solid β€œLinux strategy” for it during last few days [1] :-)

[1] https://twitter.com/nisec_tau

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jarkko

Jarkko Sakkinen

:πš™πšžπš=&πšπšžπš’πšπš˜πš—πš #notetomyself #neovim
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jarkko

Jarkko Sakkinen

Organizing #wine folders for #yabridge #linux #audio #vst #vst3 #clap
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jarkko

Jarkko Sakkinen

Looking at https://github.com/keystone-enclave/linux-keystone-driver/tree/master/linux-keystone-driver and how much I need cut it and migrate arch/riscv to make something similar as tpm_ftpm_tee. #linux #kernel #tpm #ftpm #keystone #riscv #arm #trustzone #tee
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jarkko

Jarkko Sakkinen

by trial and error found workaround for #Qt application (read #neovim-qt) launching inside #WSL guest: ln -sf /mnt/wslg/.X11-unix /tmp/.X11-unix

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jarkko

Jarkko Sakkinen

This is how I currently configure inbound #SSH connections to a #WSL guest: https://gist.github.com/jarkkojs/9cd9300b10613cc32348b3e3d5acf1ab #Linux #Windows
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jarkko

Jarkko Sakkinen

Created https://github.com/jarkkojs/linux.nix with a flake collecting OS image recipes for test #kernel's. My main observation of #nixos is that t is great for testing #linux on x86, but with #ARM boards such #raspberrypi it really just gets in the way and is factors slower than using something like #buildroot.
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jarkko

Jarkko Sakkinen

ad-hoc kernel testing #nixos style. produces an #sdcard image for x86-64 ready to be booted on bare metal or VM. #linux #buildroot
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jarkko

Jarkko Sakkinen

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