Hírolvasó

[$] Flexible data placement

4 hónap 2 hét óta
At the 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) Kanchan Joshi and Keith Busch led a combined storage and filesystem session on data placement, which concerns how the data on a storage device is actually written. In a discussion that hearkened back to previous summits, the idea is to give hints to enterprise-class SSDs to help them make better choices on where the data should go; hinting was most recently discussed at the summit in 2023. If SSDs can group data with similar lifetimes together, it can lead to longer life for the devices, but there is a need to work out the details.
jake

Security updates for Friday

4 hónap 2 hét óta
Security updates have been issued by Debian (chromium, nodejs, openjdk-17, and thunderbird), Fedora (firefox, golang-github-nvidia-container-toolkit, and thunderbird), Mageia (kernel), Oracle (ghostscript, glibc, kernel, libxslt, php:8.1, and thunderbird), SUSE (cmctl, firefox-esr, govulncheck-vulndb, java-21-openjdk, libxml2, poppler, python-h11, and redis), and Ubuntu (docker.io, ghostscript, linux-xilinx-zynqmp, and micropython).
daroc

Call for testing and comment: Make the installer prefer >1G disks

4 hónap 2 hét óta
You can tell it's right after a release is cut when new ideas are fielded in patches to tech@. One such small but potentially important change that is being aired now is a change to the installer to suggest the larger one when several disks are available. Klemens Nanni (kn@) describes the motivation for the change as

[…] whenever install media, small USB sticks or softraid(4) keydisks attach before you actual disk, defaulting to sd0 is most certainly not what you want. An easy rule of thumb that works great for me is to reshuffle the list of valid root disks such that small ones come last.

The message with the patch reads: List: openbsd-tech Subject: installer: default root disk: prefer those bigger than 1G From: Klemens Nanni <kn () openbsd ! org> Date: 2025-05-01 15:41:25 Now we show all valid root disks and pick the first one, i.e. the alphanumerically lowest value, as default:

Read more…

Redis is now available under the AGPLv3 open source license (Redis blog)

4 hónap 2 hét óta
After a somewhat tumultuous switch to the Server Side Public License (SSPL) in March 2024, Redis has backtracked and is now offering Redis under the Affero GPLv3 (AGPLv3) starting with Redis 8, CEO Rowan Trollope announced. The change back to an open-source license was led by Redis creator Salvatore "antirez" Sanfillipo, who also contributed the new Vector Sets feature for the release. He said: I'll be honest: I truly wanted the code I wrote for the new Vector Sets data type to be released under an open source license. Writing open source software is too rooted in me: I rarely wrote anything else in my career. I'm too old to start now. This may be childish, but I wrote Vector Sets with a huge amount of enthusiasm exactly because I knew Redis (and my new work) was going to be open source again.

I understand that the core of our work is to improve Redis, to continue building a good system, useful, simple, able to change with the requirements of the software stack. Yet, returning back to an open source license is the basis for such efforts to be coherent with the Redis project, to be accepted by the user base, and to contribute to a human collective effort that is larger than any single company. So, honestly, while I can't take credit for the license switch, I hope I contributed a little bit to it, because today I'm happy. I'm happy that Redis is open source software again, under the terms of the AGPLv3 license.

Since last year's license switch, though, the Valkey project has sprung up as a fork under the original 3-clause BSD license.

jake

Celebrating 20 Years of the OASIS Open Document Format

4 hónap 2 hét óta

The Document Foundation is celebrating the 20th anniversary of the ratification of the Open Document Format (ODF) as an OASIS standard.

Two decades after its approval in 2005, ODF is the only open standard for office documents, promoting digital independence, interoperability and content transparency worldwide. [...]

To celebrate this milestone, from today The Document Foundation will be publishing a series of presentations and documents on its blog that illustrate the unique features of ODF, tracing its history from the development and standardisation process through the activities of the Technical Committee for the submission of version 1.3 to ISO and the standardisation of version 1.4.

jzb

[$] Custom out-of-memory killers in BPF

4 hónap 2 hét óta
The out-of-memory (OOM) killer has long been a scary and controversial part of the Linux kernel. It is summoned from some dark place when the system as a whole (or, more recently, any given control group) is running so low on memory that further allocations are not possible; its job is to kill off processes until a sufficient amount of memory has been freed. Roman Gushchin has found a way to make the OOM killer even scarier: adding the ability to load custom OOM killers in BPF.
corbet

Security updates for Thursday

4 hónap 2 hét óta
Security updates have been issued by Debian (expat, fig2dev, firefox-esr, golang-github-gorilla-csrf, jinja2, libxml2, nagvis, qemu, request-tracker4, request-tracker5, u-boot, and vips), Fedora (firefox, giflib, and thunderbird), Mageia (imagemagick), Red Hat (thunderbird), SUSE (amber-cli, libjxl, and redis), and Ubuntu (h2o, poppler, and postgresql-10).
jake

[$] LWN.net Weekly Edition for May 1, 2025

4 hónap 2 hét óta
Inside this week's LWN.net Weekly Edition:

  • Front: Mailman 2 vulnerabilities; AI in Debian; __nonstring__; Cache-aware scheduling; Freezing filesystems; Socket-level storage; Debugging information; LWN in 2025.
  • Briefs: Debian election; Kali Linux key; OpenBSD 7.7; Firefox 138.0; GCC 15.1; Meson 1.8.0; Valgrind 3.25.0; FSF review; OSI retrospective; Mastodon; Quotes; ...
  • Announcements: Newsletters, conferences, security updates, patches, and more.
corbet

Albertson: Future of OSL in Jeopardy

4 hónap 2 hét óta
Lance Albertson writes that the Oregon State University Open Source Lab, the home of many prominent free-software projects over the years, has run into financial trouble:

I am writing to inform you about a critical and time-sensitive situation facing the Open Source Lab. Over the past several years, we have been operating at a deficit due to a decline in corporate donations. While OSU's College of Engineering (CoE) has generously filled this gap, recent changes in university funding have led to a significant reduction in CoE's budget. As a result, our current funding model is no longer sustainable and CoE needs to find ways to cut programs.

Earlier this week, I was informed that unless we secure $250,000 in committed funds, the OSL will be forced to shut down later this year.

corbet

Call for Testing: Parallel fault handler

4 hónap 2 hét óta

In a post to tech@, Martin Pieuchot (mpi@) has requested testing of a diff (against -current) to enable running the upper part of the fault handler in parallel :

Hello, Diff below enables running the fault handler in parallel. Please test an report back, with dmesg, if this increases or decreases the perfs of your usual setup. Thanks for the help, Martin

Read more…

[$] The mystery of the Mailman 2 CVEs

4 hónap 2 hét óta

Many eyebrows were raised recently when three vulnerabilities were announced that allegedly impact GNU Mailman 2.1, since many folks assumed that it was no longer being supported. That's not quite the case. Even though version 3 of the GNU Mailman mailing-list manager has been available since 2015, and version 2 was declared (mostly) end of life (EOL) in 2020, there are still plenty of users and projects still using version 2.1.x. There is, as it turns out, a big difference between mostly EOL and actually EOL. For example: WebPros, the company behind the cPanel server and web-site-management platform, still maintains a port of Mailman 2.1.x to Python 3 for its customers and was quick to respond to reports of vulnerabilities. However, the company and upstream Mailman project dispute that the CVEs are valid.

jzb

[$] Better debugging information for inlined kernel functions

4 hónap 2 hét óta

Modern compilers perform a lot of optimizations, which can complicate debugging. Song Liu and Thierry Treyer spoke about a potential improvement to BPF Type Format (BTF) debugging information that could partially combat that problem at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit. They want to add information on selectively inlined functions to BTF in order to better support tracing tools. Treyer participated remotely.

daroc