Michael Larabel

Changwoo Min with Igalia presented yesterday at Open-Source Summit North America on optimizing the kernel's scheduler for Linux gaming. Of course, the motivation is around Valve's Steam Deck but for Linux gaming at large to benefit too from this scheduler work to ideally yield less stuttering during gameplay.

Within yesterday's Linux 6.9-rc4 release is an interesting little nugget by Linus Torvalds to battle Kconfig parsers that can't correctly handle tabs but rather just assume spaces for whitespace for this kernel configuration format.

Going through my usual scanning of all the "-next" Git subsystem branches of new code set to be introduced for the next Linux kernel merge window, a very notable addition was just queued up... Linux 6.10 is set to merge the NTSYNC driver for emulating the Microsoft Windows NT synchronization primitives within the kernel for allowing better performance with Valve's Steam Play (Proton) and Wine of Windows games and other apps on Linux.

Following last year Nouveau receiving support for running with the NVIDIA GSP firmware and initial GeForce RTX 40 series accelerated support, Ben Skeggs of Red Hat unexpectedly resigned as the Nouveau kernel driver maintainer. It turns out this longtime open-source Nouveau driver developer is now employed by NVIDIA Corp and continuing to work on the open-source Linux graphics driver.

Overnight systemd lead developer Lennart Poettering wrote on Mastodon around systemd's newest effort: run0 as a sudo-like command.

While we are all waiting for the NVIDIA R555 series Linux driver beta that is expected to debut as soon as next week based on prior information with Wayland improvements (explicit sync) and more, with the NVIDIA R560 series Linux driver successor is a very interesting change: NVIDIA is planning on defaulting to using their open-source GPU kernel driver by default for GeForce RTX 2000 "Turing" GPUs and newer.

After not being ready in time for this week's early release target date, it's now been determined today that Fedora 40 is ready for release next week.

For those interested in some insightful Linux kernel mailing list reading this weekend, there's been a vibrant discussion on the ability for the Linux kernel to mitigate unexpected arithmetic overflows/underflows/wraparounds.

Linux Mint published their monthly status update for April 2024 where they talk about ongoing testing for faster and more reliable repository access via the Fastly CDN to other more interesting software happenings like the likelihood that they will fork more GNOME applications as well as looking to make their XApp applications more distribution agnostic.

A change proposal has been filed for building the CPython interpreter and the Python standard library using the "-O3" compiler optimization flag rather than Fedora's imposed default of the "-O2" optimization level. This is being sought in the name of greater Python performance on Fedora 41.

Back in 2019 Microsoft open-sourced Cascadia Code as a font designed for terminals and code editors. The goals are similar to that of Intel's more recent One Mono as another open-source font for developers. It's been three years since the last update to the Cascadia Code open-source font while today rolled out version 2404.23.

After publishing open-source versions of MS-DOS years ago for versions 1.25 and 2.0, Microsoft and IBM have now announced that MS-DOS 4.0 has been open-sourced under an MIT license.

It's Fedora 40 release day! Fedora 40 is now available for download from mirrors for this leading Linux distribution.

The modular/upgradeable Framework Laptops employ an open-source embedded controller (EC) firmware derived from Google's Chrome OS EC project. This is great for open-source fans and allows re-using much of the same Chrome OS EC software support that already exists. But there is also vendor-specific commands supported by the Framework Laptop EC and thus a dedicated Linux kernel driver is now being worked on for handling those vendor/device-specific features.

Redox OS as the from-scratch, Rust-written open-source operating system had a successful April with now having USB keyboards and mice now working with their USB HID driver.

While on Linux the desktop environments, graphics stack, and other application software is steadily adopting Wayland support and focusing less on X11/X.Org support, the state of Wayland support and the open-source graphics driver stack in general is less robust among the BSDs. The NetBSD project published a status report around their ongoing dependence and modifications to their X.Org stack.

Systemd 256-rc1 is available this evening and it comes with many new features and improvements to existing features. It's a big one.

If your interest didn't pique enough when the former Nouveau lead developer joined NVIDIA and sent out a big patch series for this originally-reverse-engineered, open-source NVIDIA kernel driver, here's another plot twist: another NVIDIA engineer opening a merge request adding to the Mesa NVK Vulkan driver.

In addition to all of the contributions Valve graphics engineers have been making to the open-source Radeon "RADV" Vulkan driver, they have also begun investing in improvements to the open-source Mesa NVIDIA "NVK" Vulkan driver too. With pending patches there is now explicit GPU synchronization support working for the NVK driver in conjunction with their Gamescope compositor.

After recently announcing they'd be working to get out Micro-Engine Scheduler (MES) firmware documentation and open-source code, AMD said they would be working to open-source more of their software stack and hardware documentation. AMD repeated those calls over the weekend.

For those wondering about the OpenZFS root file-system support for Ubuntu 24.04 LTS, it's in-place with the Ubuntu desktop installer. Not only is it still there but now there's also the ability to easily setup Ubuntu atop an OpenZFS encrypted root file-system.

While the Firefox web browser has long worked on AArch64 Linux and Mozilla even offers Windows ARM64/AArch64 binaries, to date Mozilla hasn't released official ARM64/AArch64 binaries for Linux. That is finally beginning to change.

The uutils' Rust-based Coreutils implementation is out with another update that further increases the drop-in replacement compatibility with GNU Coreutils.

Wine 9.8 is out today as the newest bi-weekly development release of this open-source software for enjoying Windows games/applications on Linux / Chrome OS, macOS, and other platforms.

While systemd 255 last year introduced a "blue screen of death" inspired solution with systemd-bsod for presenting logged error messages full-screen, it's not appropriate for all errors. Systemd-bsod can work out for presenting full-screen messages in case of boot failures and other problems where user-space is alive. But the user-space code does little good in case of a kernel panic and similar issues bringing the system to a halt. Set to be introduced now with Linux 6.10 is a parallel "blue screen of death" like error presenting experience with the introduction of the DRM panic handler.