Post Syndicated from corbet original https://lwn.net/Articles/1097209/

The extensible scheduler class, which
enables the creation of custom CPU schedulers with BPF, has led to a burst
of innovation in this area; the
LAVD scheduler has, perhaps, been one of the most noteworthy schedulers
to emerge. Though it was originally designed
for gaming applications, the LAVD scheduler has since grown to serve
other types of workloads as well. At the 2026 edition of Kernel Recipes, Changwoo Min
and Gavin Guo presented an overview of this scheduler and how it has
evolved over time.

Post Syndicated from corbet original https://lwn.net/Articles/1096963/

Patch review has long been one of the limiting constraints for the kernel
project (and most others); there just aren’t enough people to properly
review all of the code that is submitted for inclusion. The Sashiko
system, which uses a large language model (LLM) to generate reviews
automatically, offers the prospect of some relief, and has already become
an important part of the kernel’s development process. At the 2026 edition
of Kernel Recipes, Roman
Gushchin, the maintainer of Sashiko, provided an overview of how
the system works and what is being done to improve it.

Post Syndicated from corbet original https://lwn.net/Articles/1098476/

The 7.3-rc6 kernel prepatch is out for
testing. Linus said:

Next week might look a bit different: we’ve got the annual
maintainer summit and the Linux plumbers conference going on , so
I’ll be on the road, as will a number of other maintainers. That
may or may not end up changing the stats for -rc7. But it’s
unlikely to affect the release schedule, although the fact that I
have my yearly family vacation the week after that might make the
next merge window a bit wonky.

Post Syndicated from corbet original https://lwn.net/Articles/1096908/

By now it is no secret that large language models (LLMs) have made it easy
for people to identify security bugs, and that has resulted in a flood of
bug reports to almost every free-software project, including the kernel.
At the 2026 edition of Kernel
Recipes, Greg Kroah-Hartman took the stage to talk about how the
kernel’s security team is handling this deluge. His core message was
“don’t panic“.

Post Syndicated from corbet original https://lwn.net/Articles/1098068/

Version
1.99.0 of the Rust language has been released. Changes this time
include support for extern "C" variadic functions, the
establishment of functions for obtaining the size and alignment of raw
pointers, a number of stabilized APIs, and more.

Post Syndicated from corbet original https://lwn.net/Articles/1097802/

The full set
of videos from the recently concluded Kernel Recipes conference
has been posted. Also noteworthy are the associated caricature drawings,
by Frank Tizzoni, of attendees
and the
speakers.

Post Syndicated from corbet original https://lwn.net/Articles/1097761/

The 2026 Python Language Summit was held on July 14 in Kraków, Poland;
there is now a
series of reports available on the topics that were discussed there.
They include the memory buffer protocol, garbage collection, free-threaded
Python, and “Spicycrab”.

Post Syndicated from corbet original https://lwn.net/Articles/1097758/

The election for members of the Linux Foundation Technical Advisory Board
will be held electronically after the close of the upcoming Linux Plumbers Conference. The call for
candidates is is open, with a nomination deadline of October 7.
There are five seats to fill this time, including the one vacated by the
unfortunate passing of Dan Williams.

Serving on the TAB is a good way to help the kernel-development community.
Please see this article from last year for
an overview of what the TAB does and why membership is rewarding, then
consider putting in your nomination.

Post Syndicated from corbet original https://lwn.net/Articles/1097495/

Version
157.0 of the Firefox browser has been released. It features
“Firefox’s biggest visual refresh in years“, the ability to use
hardware AV1 decoding with WebRTC calls, and a number of fixes.

Post Syndicated from corbet original https://lwn.net/Articles/1096827/

Andres Freund has a few claims to fame, but
chief among them is his many years of work to improve the performance of
the PostgreSQL relational database
management system. That work requires working with — or around — many
Linux kernel features and behaviors. He put in an appearance at the 2026
edition of Kernel Recipes
to talk about his experience working with the kernel project, how the
kernel could better support applications like PostgreSQL, and some
interesting developments in the PostgreSQL world.

Post Syndicated from corbet original https://lwn.net/Articles/1095811/

As a professor of biomedical engineering, Martin Uecker perhaps does not
fit the profile of a typical presenter at Kernel Recipes. He is,
however, a longtime Linux user, and works on free software for controlling
magnetic resonance imaging (MRI) scanners. He was at the conference to
talk about the C programming language, the specific problem of undefined
behavior in C, and whether it can eventually be made into a memory-safe
language.

Post Syndicated from corbet original https://lwn.net/Articles/1096959/

The 7.3-rc5 kernel prepatch is out for
testing. Linus said: “I don’t think there’s any real pattern to it
other than ‘big’. But nothing looks particularly alarming, I think that
despite the diffstat it’s just the same old, same old.“

Post Syndicated from corbet original https://lwn.net/Articles/1096897/

Version 18.1 of the GDB interactive debugger has been released. Changes
include new commands to manipulate the environment of the subprocess, the
ability to save the command history to a file, support for a couple of new
targets, several Python API additions, and more. See the
NEWS file for the complete list.

Post Syndicated from corbet original https://lwn.net/Articles/1096819/

Johannes Schindelin has posted a detailed
summary of the discussions held at the 2026 Git Contributors’ Summit.
Topics covered include Git 3.0, security process, documentation, the
pluggable object database, use of LLMs, and more.

Post Syndicated from corbet original https://lwn.net/Articles/1094840/

Inside this week’s LWN.net Weekly Edition:

• Front: Git 2.56; gccrs; NetBSD and compat_linux; io_uring; Desktop UX.
• Briefs: WordPress vulnerability; Radicle vulnerability; Systemtap 5.6; GNOME 51; Systemd v262; Quotes; …
• Announcements: Newsletters, conferences, security updates, patches, and more.

Post Syndicated from corbet original https://lwn.net/Articles/1094575/

The Git source-code management system is
at the core of development processes worldwide, so changes, especially
incompatible changes, are of great interest to the developers involved.
The Git 2.56 release, which can be expected around the end of September, is
currently available in release-candidate form. It
is not the most earth-shaking of releases, but the one that follows, which
might be the long-awaited Git 3.0, may well be.

Post Syndicated from corbet original https://lwn.net/Articles/1095220/

Version 5.6 of the Systemtap tracing tool has been released.

BPF LSM hooks and XDP packet-processing probes for the –bpf
runtime, BTF-based kernel.tracepoint probes, statement execution
tracing, a new @enumname() operator, richer runtime error context,
dyninst hardware watchpoints, modern systemd service templates, and
broad Linux 7.2 runtime/tapset compatibility work. Multithreaded
speedups throughout.

Post Syndicated from corbet original https://lwn.net/Articles/1095219/

Security updates have been issued by AlmaLinux (.NET 10.0, coreutils, kernel, libevent, libsoup3, microcode_ctl, perl-Net-DNS, postgresql18, postgresql:16, postgresql:18, tomcat, and unbound), Debian (bind9, chromium, libapache2-mod-auth-openidc, nginx, xz-utils, and zip), Fedora (chromium, freeipmi, GitPython, gnatcoll, nodejs-undici, parted, python-django5, and sblim-cmpi-base), Mageia (imagemagick and python-starlette), Oracle (.NET 10.0, .NET 8.0, .NET 9.0, coreutils, corosync, firewalld, kernel, libevent, libsoup, microcode_ctl, nginx:1.24, perl, perl:5.32, postgresql:16, postgresql:18, redis, rsync, rsyslog, tesseract, and unbound), Red Hat (vim), SUSE (alsa, chirp, chromium, cjose, cups, discount, firefox, gh, glibc, gvfs, jq, kernel, libcjose-devel, libmbedcrypto7, libpcap, mbedtls-2, netcdf, nodejs18, openai-codex, openvpn, pcre2, perl-net-dns, sngrep, tiff, and znc), and Ubuntu (bison, bubblewrap, and gst-plugins-good1.0).

Post Syndicated from corbet original https://lwn.net/Articles/1094303/

The io_uring
subsystem is all about asynchronous execution; applications count on it
to not block — unless explicitly requested to. Within io_uring, maintaining
the “never blocks” guarantee has sometimes been a challenge, given that
many paths in the kernel were never designed for asynchronous execution.
This problem has been worked around, but at a significant cost to
performance. Now, io_uring maintainer Jens Axboe has posted an RFC patch set
with a somewhat radical (and potentially scary) solution to the problem.

Post Syndicated from corbet original https://lwn.net/Articles/1094963/

Version 51 of the GNOME desktop
environment has been released. The list of changes includes a number of
performance improvements, offline data and better transit information in
the Maps application, a new interface for the file previewer, and more.