The #uapigroup hosts two brand new specifications at https://uapi-group.org/specifications

The VMClock specification comes from Amazon AWS and defines an efficient guest clock synchronization mechanism:
https://uapi-group.org/specifications/specs/vmclock/

The VMGenID specification defines a notification mechanism whenever a VM is cloned/copied so userspace and kernel can take appropriate action (e.g., changing machine ID or updating random seeds):
https://uapi-group.org/specifications/specs/vmgenid/

The #uapigroup is very happy to serve as a home for these specs.

Implementing transcendental functions in Ivy

https://commandcenter.blogspot.com/2026/01/implementing-transcendental-functions.html

@etchedpixels the technical arguments re. behind the meter efficiency are surprising to me. They mention an attached report but I didn't see it. In any case, they say the power demand drops 1% for 1% voltage, which seems to point at efficiency of appliances which convert voltages down. Fix those instead? I also wonder if they've looked at the impact of increasing the max current draw for the same power, increases in copper losses and increased risk of fire via house wiring & switches.

RE: https://mastodon.social/@etchedpixels/115963032961281362

@azonenberg Looks like a Sherline mill.

RE: https://ioc.exchange/@azonenberg/115962847027721998

Spent an eternity today retuning a 10-pole cavity filter. Started to feel like I was in an episode of Severance, manipulating patterns by intuition on 80s tech.

I just sent out the CfP for LSF/MM/BPF 2026 in Zagreb, Croatia:

https://lore.kernel.org/20260110-lsfmm-2026-cfp-ae970765d60e@brauner

This year's committee is:

Javier González (Storage)
Martin K. Petersen (Storage)
Christian Brauner (Filesystems)
Amir Goldstein (Filesystems)
Jan Kara (Filesystems)
Vlastimil Babka (MM)
Matthew Wilcox (MM)
Daniel Borkmann (BPF)
Martin KaFai Lau (BPF)

Send us your proposals!

What happened to nanofarads?

Furiously (not really) building an S-Band receiver for the Artemis II mission.

Doh. Just discovered the 'up' alias for upgrade in dnf. I have wasted so many keystrokes.

@andrewbriscoe ♥️ PNW

RE: https://mastodon.social/@andrewbriscoe/115911203456338739

▶️ The CfP is now open, until March 15th:

🐧 https://sessionize.com/linux-security-summit-north-america-2026

RE: https://social.kernel.org/objects/3c52571b-e7fe-4e79-be5f-20b9485e2540

RE: https://mastodon.social/@brauner/115871045863565861

Be sure to request an invite to #lsfmmbpf 2026 in Zagreb, Croatia!

📢 Save the date! The 2026 Linux Security Summit North America (LSS-NA) will be held May 21-22 in Minneapolis, MN, co-located with OSS-NA.

🐧 https://events.linuxfoundation.org/linux-security-summit-north-america/

picolibc has been reformatted with clang-format. All PRs will now be checked to make sure they are formatted correctly, so any pending requests will need to be fixed and resubmitted. I'm looking forward to having only one coding style to deal with.

Thanks to all of the picolibc contributors over 2025 and best wishes for 2026.

Right on time to coincide with the end of the year I finished my #systemd259 series of posts. And I now also prepped a blog story linking to every single one of them here:

https://0pointer.net/blog/mastodon-stories-for-systemd-v259.html

Make sure to stay tuned for the #systemd260 series, most likely starting already in a few weeks!

Also, happy new year! 🎇

A few weeks ago, Michelle @abraxas3d visited us. She wrote a very nice report on "A day at Dwingeloo", detailing some of our recent experiments. The full story is at https://www.openresearch.institute/2025/11/12/a-day-at-dwingeloo/

Idle thought: I’ve been working as an IC for a few months again after many years of management. I fundamentally enjoy the development work and open space on my calendar. Digging deeply into some new technical area and solving a difficult problem with few distractions is very much my thing and does not feel like work at all. But with this also is the realization that I can accomplish at least 10x of that by helping a team to solve some larger scale problem—moving the needle in a meaningful way, which also means delivering that to people.

British Airways AI. Glad they’re not trying to do anything difficult or life-critical with technology.

1️⃣5️⃣ Here's the 15th post highlighting key new features of the recently released v259 release of systemd. #systemd259 #systemd

Here's a quick one: you might have noticed that whenever a systemd service deactivates we'll log a brief journal message saying the amount of CPU time consumed, and the peak memory used by this unit cycle. With v259 that message is slightly extended: it will now also indicate the wall clock time passed since activation of the unit. This is particularly nice when…

RE: https://mastodon.social/@flypig/115731062513471615

If you are going to #FOSDEM in 2026, stop by the FOSS on Mobile devroom!