Calibrating the PID controller of a DIY reflow hot plate. Mistakes were made.

The lack of threading here is diabolical.

Hi folks, I've just posted an edited version of one of the presentations I gave remotely at Microwave Update 2024 Vancouver. It's about some of the techniques I've been experimenting with for manufacturing antennas and feeds now I have a tame 5000-pound killer robot in my workshop, otherwise known as a SYIL X5 CNC mill.
https://youtu.be/ZDQyhEpxXmA
#radio #cnc #machining #microwave #mmWave

📢 Videos from Linux Security Summit Europe 2024 (LSS-EU) are up:

https://www.youtube.com/watch?v=S1r94G8yJMs&list=PLbzoR-pLrL6pXwGwbAmhi3DgsaPKJTLde

I visited ESA’s antenna laboratory so now you get new wallpapers (for free even!)

PROGRAMMING TIP
avoid repeating the same 4 lines of code twice by writing 270 lines of beautiful, abstract, generic code

At Microwave Update in BC (https://www.microwaveupdate.org), one of the vendors had a 170 GHz spectrum analyzer. How is it possible in a device this size? #hamradio #microwave #amateuradio

Toured the TRIUMF particle accelerator in Vancouver BC, got to stand on top of a cyclotron. The magnetic field was strong enough to prevent paperclips from laying flat. It’s also where they store old focusing magnets (which become radioactive).

OMG I want to tell you about the coolest thing I've learned about in a hot minute! (Maybe everyone already knows about this, but it's new to me & I LIKE LEARNING STUFF LET'S GO ON A JOURNEY OF EXPLOSIVE DISCOVERY TOGETHER)

SO. Under certain precise conditions, natural deposits of uranium can develop spontaneous nuclear fission chain reactions identical to the kind we make on purpose in modern nuclear reactors

*This has already happened at least once.* About 1.7 billion years ago in Oklo, Gabon

🗞️ The September issue of RDE Monthly is out!

The best monthly newsletter about Guix, Guile and RDE ecosystems.

Brought to you by Kirill Yermak and community.

https://lists.sr.ht/~abcdw/rde-monthly/%3C250419570.99760.1727873737363@office.mailbox.org%3E

Events, Releases, Announces, Articles and Videos, everything from the last month collected in one place.

Contribute to the next issue:
https://todo.sr.ht/~abcdw/tickets/66

Stay informed, stay engaged!

Tweety.

Just like I did for 6.10, I wrote up a "what's new with io_uring" but for the 6.11/12 kernels. 6.11 wasn't super exciting in terms of features, so bundled these into a single page.

https://github.com/axboe/liburing/wiki/What's-new-with-io_uring-in-6.11-12

What am I supposed to do with this? Wrong answers only.

Tomorrow I'll be hosting a Linux Security Modules (LSM) BoF at LPC. If you have any LSM questions or a related topic to discuss, please join us!

https://lpc.events/event/18/contributions/1890/

#lpc #linux #lsm

Great write-up by @psychomario on a root privilege escalation toolchain which leverages DBus, CUPS, and WPA on Ubuntu: https://snyk.io/blog/abusing-ubuntu-root-privilege-escalation/

Please help us test OpenSSH ahead of the 9.9 release, due in a few weeks.

New features include a new post-quantum key exchange based on ML-KEM, improved controls to disallow unwanted connections and better performance for the existing PQ key exchange.

Full details at: https://marc.info/?l=openssh-unix-dev&m=172638834815257&w=2

Having worked on the kernel for decades, and imposing a lot of the same code/git hygiene for liburing, there can be a disconnect for contributors on what is expected of a commit and commit message, and what series of commits should look like. I attempted to provide a basic guideline here:

https://github.com/axboe/liburing/blob/master/CONTRIBUTING.md

and would appreciate feedback from folks on what I missed, what isn't clear, etc.

Four days to go!

RE: https://social.kernel.org/objects/d8ef1ebf-0dcc-4013-9590-8dfe13da27b3

Gonna be giving a talk "SLUB Internals for Exploit Developers" at @LinuxSecSummit next week.

Plan to cover the basics one needs to know before writing exploits for slab bugs; slides coming along 😁

Also gonna stay around for @linuxplumbersconf.

https://lsseu2024.sched.com/event/1ebVN

This is a real command that people type instead of grep:

Select-String -Path "C:\file\Path\*.txt" -Pattern "REGEX"