Posts
512
Following
482
Followers
396
Linux Kernel security developer, working for Microsoft. Also W7TXT. Views are my own.
Topics: #Linux #kernel #security, #amateurradio, #RF, #hamradio, #electronics, #science, #radioastronomy, #physics, #space, #arduino.

📡 https://w7txt.net/
🐧 https://blog.namei.org/
☠️ https://www.facebook.com/w7txt
jmorris

James Morris

Reply to @bluca@fosstodon.org
@bluca French police were doing similar on a train to Paris, just after leaving... Marseille! I took a photo of this and they confronted me about it, but were friendly after they heard my accent.
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jmorris

James Morris

Reply to @jmorris
Boards arrived from @oshpark -- next step, soldering.


@kicad
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jmorris

James Morris

Reply to @lucasarts_places@mastodon.social
@lucasarts_places did gaming ever get more fun than this?
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jmorris

James Morris

Did you know you can watch @KernelRecipes videos already by seeking in the live streams which are currently online?

https://www.youtube.com/@KernelRecipes/streams
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jmorris

James Morris

Reply to @robpike@hachyderm.io
@robpike @timbray speaking of aged ears, one of the ironies in all of this is finally being able to afford a decent audio system after decades of work only to realize your ears are now kind of crap.
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jmorris
repeated
chompie1337@haunted.computer

chompie

Reply to @chompie1337@haunted.computer

come see more at Hexacon!
https://www.hexacon.fr/conference/speakers/#cuda_de_grace

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jmorris

James Morris

Running make -j32 to build a kernel on my new work workstation. Takes about a minute, in total silence.
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jmorris

James Morris

Reply to @PE4KH@mastodon.radio
@PE4KH we're thinking possibly ship scatter more generally, should work for container ships etc.
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jmorris

James Morris

@vilmibm people take it for granted now that you can just click on things, but it took decades for the idea to take hold & become ubiquitous. Most of it was utterly awful until the web came along.

RE: https://tiny.tilde.website/@vilmibm/115177383467463329
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jmorris

James Morris

Edited 1 month ago
Interesting paper: "Enter, Exit, Page Fault, Leak: Testing Isolation Boundaries for Microarchitectural Leaks"

https://www.microsoft.com/en-us/research/publication/enter-exit-page-fault-leak-testing-isolation-boundaries-for-microarchitectural-leaks/

"We found 4 new cross-domain leaks, successfully detected all 6 known leaks possible in the configurations that we tested and reproduced 6 known flaws in patches."

e.g.:

"We discovered a microarchitectural effect on AMD3 that allows an attacker VM to selectively infer any bit from the memory of another VM, provided the victim VM has previously accessed (i.e., cached) this bit. By repeatedly exploiting this effect, the attacker VM could read the victim’s memory one bit at a time, and thus learn the contents of an arbitrary memory range used by the victim. "
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jmorris
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LinuxSecSummit

Linux Security Summit 🐧

📢 🐧 The videos from LSS-EU 🇪🇺 2025 in Amsterdam 🇳🇱 are now up!

📺 Here is the playlist:

https://youtube.com/playlist?list=PLbzoR-pLrL6rSxIlgQx8OYw74Az63TpaB&si=6DEbDaY4GJMtIH1m
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jmorris

James Morris

Reply to @fustini
@fustini @kicad feel free to point out any issues if you see them.
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jmorris

James Morris

Learning KiCAD.



@kicad
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jmorris
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pid_eins@mastodon.social

Lennart Poettering

Edited 1 month ago

4️⃣9️⃣ Here's the 49th post highlighting key new features of the upcoming v258 release of systemd.

One of the key features of systemd from day 1 on is socket activation, i.e. a mechanism where systemd binds sockets on behalf of services, watches them and only activates the services themselves later, possibly only at the moment they are actively used.

This has various benefits, for example reduces ahead of time cost of running a large number of services (which improves boot times).

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jmorris

James Morris

Reply to @pdp7@fosstodon.org
@pdp7 coming to LSS-EU?
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jmorris
repeated
allsystemsgo@fosstodon.org

All Systems Go!

📣 Reminder: Ticket prices go up in a few days for All Systems Go! 2025, the foundational user-space Linux technologies event in Berlin.
🎟️ Get yours today @ https://ti.to/all-systems-go/all-systems-go-2025
ℹ️ And more info @ https://all-systems-go.io/

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jmorris
repeated
LinuxSecSummit

Linux Security Summit 🐧

LSS-EU kicks off today in Amsterdam, with conference chair Elena Reshetova presenting opening remarks.

https://lsseu2025.sched.com/list/simple
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jmorris

James Morris

Reply to @jmorris
Answer: Foam photography museum in Amsterdam.
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jmorris

James Morris

Reply to @Gina@fosstodon.org
@Gina yes, or you could replace the wires in that connector with longer ones. Looks like 240v? That is potentially deadly, FYI.
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jmorris

James Morris

Where am I? Wrong answers welcome.
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