Michael Larabel

Red Hat's display driver team has recently been devising plans for Nova, a new to-be-developed Linux DRM kernel driver written in Rust for open-source NVIDIA graphics support as the successor/replacement to Nouveau for newer NVIDIA GPU generations supporting the GPU System Processor (GSP). Making this effort all the more involved is being written in Rust at a time when various kernel abstractions are still being devised and not yet upstreamed.

Red Hat today issued an "urgent security alert" for Fedora 41 and Fedora Rawhide users over XZ. Yes, the XZ tools and libraries for this compression format. Some malicious code was added to XZ 5.6.0/5.6.1 that could allow unauthorized remote system access.

Today's disclosure of XZ upstream release packages containing malicious code to compromise remote SSH access has certainly been an Easter weekend surprise... The situation only looks more bleak over time with how the upstream project was compromised while now the latest twist is GitHub disabling the XZ repository in its entirety.

David Malcolm of Red Hat's compiler team is out with his annual blog post summarizing the static analysis improvements to find with the upcoming GCC 14 stable compiler release.

Nearly one year ago Intel published the X86S specification (formerly stylized as "X86-S") for simplifying the Intel architecture by removing support for 16-bit and 32-bit operating systems. X86S is a big step forward with dropping legacy mode, 5-level paging improvements, and other modernization improvements for x86_64. With the Linux 6.9 kernel more x86S bits are in place for this ongoing effort.

The Linux 6.9 kernel will be able to boot systems with large amounts of memory -- and in particular making use of HugeTLB pages -- much faster than with previous kernels, netting a noticeable reduction in boot times.

The open-source Rust-written Redox OS has enjoyed "significant" performance and correctness improvements to its kernel recently as it further shows off the capability of this from-scratch OS.

The Ubuntu 24.04 beta won't be happening tomorrow as planned but has been pushed back by one week due to the XZ security nightmare and wanting to rebuild packages out of an abundance of caution.

With time Microsoft's Linux kernel contributions have extended beyond just the initial business focus on Hyper-V support and other needs for Azure as well as around Windows Subsystem for Linux (WSL) to more general contributions. Microsoft has also hired more key Linux contributors along with stakes in other projects like systemd. Earlier this week were patches from a Microsoft engineer working out Rust language improvements for the Linux kernel while now in ending out the holiday weekend are patches for making the Linux kernel language more inclusive.

The EFI updates were merged today for the ongoing Linux 6.9 merge window. This cycle the EFI kernel code is seeing enhancements for confidential computing as well as for satisfy Microsoft's requirements for getting them to sign the x86 shim loader again for UEFI Secure Boot handling.

Depending upon how Linus Torvalds is feeling today, Linux 6.8 could debut today as stable and in turn mark the opening of the Linux 6.9 merge window... Otherwise it will be punted off by one week. In any event, there's a lot of interesting work queuing for Linux 6.9 as shared in today's preview.

A change proposal filed for fedora 42 seeks to make KDE Plasma the default desktop of Fedora Workstation while GNOME would move to its own separate spin/edition. The proposal has yet to be voted on by the Fedora Engineering and Steering Committee (FESCo) but given Red Hat's deep roots with GNOME, I have a hard time seeing this pass at least in the near-term.

After working at ATI/AMD for more than a quarter century and being the open-source graphics driver manager during the early days, John Bridgman has retired.

A new release of Llamafile is available this Easter Sunday from the Mozilla Ocho group. Llamafile is a means of distributing and running large language models (LLMs) from a single file, making LLMs much easier to distribute and use by developers and end-users. Llamafile remains one of the more interesting non-browser projects out of Mozilla in recent times that so far has a bright future.

Given the recent change by Redis to adopt dual source-available licensing for all their releases moving forward (Redis Source Available License v2 and Server Side Public License v1), the Linux Foundation announced today their fork of Redis.

The latest file-system driver with notable mentions for Linux 6.9 is that for Microsoft's exFAT file-system.

KDE developer Nate Graham is out with his weekly development summary outlining the interesting feature work and bug fixes to land in the KDE space. Being fresh off the recent Plasma 6.0 release, a lot of bug reports are still coming in while developers are already busy tackling new features for Plasma 6.1.

The lightweight LXQt desktop environment is fully ready to take on the Wayland world.

What a time we live in where Microsoft not only continues contributing significantly to the Linux kernel but doing so to further flesh out the design of the Linux kernel's Rust programming language support. A previously unimaginable combination of Microsoft, the Rust programming language, and the Linux kernel.

All of the x86 platform driver updates have been merged for the ongoing Linux 6.9 merge window. As usual, most of the x86 platform driver work is around better supporting various Intel Core and AMD Ryzen laptops under Linux.

With the SDL library that's widely-used by cross-platform games with the current SDL 3.0 development code it prefers Wayland over X11, but a new pull request would temporarily revert that on the basis of the Wayland ecosystem still not being up to par.

Microsoft is rolling out WSL 2.2.1 to WIndows Subsystem for Linux (WSL) users with more reliable networking support, hang fixes, and other improvements.

While Linux 6.9 brings many great changes and new features / hardware support, on the deprecation side it's deprecating the classic EXT2 file-system driver.

Since the Bcachefs file-system was upstreamed in the Linux 6.7 kernel it's been humming along fairy well. But today the Bcachefs feature updates were sent in for the Linux 6.9 merge window and Linus Torvalds isn't happy about some of the proposed code.

A "request for comments" patch series was posted on Monday for a new dynamic kernel stacks feature for Linux. Early testing has shown the potential for significant memory savings.