Bcachefs "pitches itself as a filesystem that 'doesn't eat your data'," writes the open source/Linux blog It's FOSS. Although it was last October that Bcachefs developer Kent Overstreet was restricted from participating in the Linux 6.13 kernel development cycle (after ending a mailing list post with "Get your head examined. And get the fuck out of here with this shit.")

And now with the upcoming Linux kernel 6.17 release, Linus Torvalds has decided to drop Bcachefs support, they report, "owing to growing tensions" with Overstreet: The decision follows a series of disagreements over how fixes and changes for it were submitted during the 6.16 release cycle... Kent filed a pull request to add a new feature called "journal-rewind". It was meant to improve bcachefs repair functionality, but it landed during the release candidate (RC) phase, a time usually reserved for bug fixes, not new features, as Linus pointed out. [Adding "I remain steadfastly convinced that anybody who uses bcachefs is expecting it to be experimental. They had better."]

Theodore Ts'o, a long-time kernel developer and maintainer of ext4, also chimed in, saying that Kent's approach risks introducing regressions, especially when changes affect sensitive parts of a filesystem like journaling. He reminded Kent that the rules around the merge window have been a long-standing consensus in the kernel community, and it's Linus's job to enforce them. After some more back and forth, Kent pushed back, arguing that the rules around the merge window aren't absolute and should allow for flexibility, even more so when user data is at stake. He then went ahead and resubmitted the patch, citing instances from XFS and Btrfs where similar fixes made it into the kernel during RCs. Linus merged it into his tree, but ultimately decided to drop Bcachefs entirely in the 6.17 merge window.

To which Kent responded by clarifying that he wasn't trying to shut Linus out of Bcachefs' decisions, stressing that he values Linus's input...
This of course follows the great Torvalds-Overstreet "filesystem people never learn" throwdown back in April.

An anonymous reader shared this report from WebProNews: The Linux world is abuzz with news of XLibre, a fork of the venerable X11 window display system, which aims to be an alternative to X11's successor, Wayland.

Much of the Linux world is working to adopt Wayland, the successor to X11. Wayland has been touted as being a superior option, providing better security and performance. Despite Fedora and Ubuntu both going Wayland-only, the newer display protocol still lags behind X11, in terms of functionality, especially in the realm of accessibility, screen recording, session restore, and more. In addition, despite the promise of improved performance, many users report performance regressions compared to X11.

While progress is being made, it has been slow going, especially for a project that is more than 17 years old. To make matters worse, Wayland is largely being improved by committee, with the various desktop environment teams trying to work together to further the protocol. Progress is further hampered by the fact that the GNOME developers often object to the implementation of some functionality that doesn't fit with their vision of what a desktop should be — despite those features being present and needed in every other environment.

In response, developer Enrico Weigelt has forked Xll into the XLibre project. Weigelt was already one of the most prolific X11 contributors at a time when little to no improvements or new features are being added to the aging window system... Weigelt has wasted no time releasing the inaugural version of XLibre, XLibre 25.0. The release includes a slew of improvements.
MrBrklyn (Slashdot reader #4,775) adds that Artix Linux, a rolling-release distro based on Arch Linux which does not use systemd, now offers XLibre ISO images and packages for testing and use. They're all non-systemd based, and "Its a decent undertaking by the Artix development team. The iso is considered to be testing but it is quickly moving to the regular repos for broad public use."

Steven J. Vaughan-Nichols writes in an opinion piece for The Register: Microsoft, tactically admitting it has failed at talking all the Windows 10 PC users into moving to Windows 11 after all, is -- sort of, kind of -- extending Windows 10 support for another year. For most users, that means they'll need to subscribe to Microsoft 365. This, in turn, means their data and meta-information will be kept in a US-based datacenter. That isn't sitting so well with many European Union (EU) organizations and companies. It doesn't sit that well with me or a lot of other people either.

A few years back, I wrote in these very pages that Microsoft didn't want you so much to buy Windows as subscribe to its cloud services and keep your data on its servers. If you wanted a real desktop operating system, Linux would be almost your only choice. Nothing has changed since then, except that folks are getting a wee bit more concerned about their privacy now that President Donald Trump is in charge of the US. You may have noticed that he and his regime love getting their hands on other people's data.

Privacy isn't the only issue. Can you trust Microsoft to deliver on its service promises under American political pressure? Ask the EU-based International Criminal Court (ICC) which after it issued arrest warrants for Israeli Prime Minister Benjamin Netanyahu for war crimes, Trump imposed sanctions on the ICC. Soon afterward, ICC's chief prosecutor, Karim Khan, was reportedly locked out of his Microsoft email accounts. Coincidence? Some think not. Microsoft denies they had anything to do with this.

Peter Ganten, chairman of the German-based Open-Source Business Alliance (OSBA), opined that these sanctions ordered by the US which he alleged had been implemented by Microsoft "must be a wake-up call for all those responsible for the secure availability of state and private IT and communication infrastructures." Microsoft chairman and general counsel, Brad Smith, had promised that it would stand behind its EU customers against political pressure. In the aftermath of the ICC reports, Smith declared Microsoft had not been "in any way [involved in] the cessation of services to the ICC." In the meantime, if you want to reach Khan, you'll find him on the privacy-first Swiss email provider, ProtonMail.

In short, besides all the other good reasons for people switching to the Linux desktop - security, Linux is now easy to use, and, thanks to Steam, you can do serious gaming on Linux - privacy has become much more critical. That's why several EU governments have decided that moving to the Linux desktop makes a lot of sense... Besides, all these governments know that switching from Windows 10 to 11 isn't cheap. While finances also play a role, and I always believe in "following the money" when it comes to such software decisions, there's no question that Europe is worried about just how trustworthy America and its companies are these days. Do you blame them? I don't. The shift to the Linux desktop is "nothing new," as Vaughan-Nichols notes. Munich launched its LiMux project back in 2004 and, despite ending it in 2017, reignited its open-source commitment by establishing a dedicated program office in 2024. In France, the gendarmerie now operates over 100,000 computers on a custom Ubuntu-based OS (GendBuntu), while the city of Lyon is transitioning to Linux and PostgreSQL.

More recently, Denmark announced it is dropping Windows and Office in favor of Linux and LibreOffice, citing digital sovereignty. The German state of Schleswig-Holstein is following suit, also moving away from Microsoft software. Meanwhile, a pan-European Linux OS (EU OS) based on Fedora Kinoite is being explored, with Linux Mint and openSUSE among the alternatives under consideration.

Michael Larabel writes via Phoronix: The upcoming Blender 5.0 3D modeling software application is introducing High Dynamic Range (HDR) display support on Linux when making use of Wayland -- no X11 support for HDR -- and Vulkan graphics accelerator. HDR support for Blender 5.0 on Linux is currently considered experimental. Enabling the HDR support on Linux for the Blender creator software requires having a High Dynamic Range display (of course) and be running on a Wayland desktop, enabling Vulkan API acceleration rather than OpenGL, and enabling the feature currently deemed experimental. Additional details can be found via this Blender DevTalk thread.

If Fedora drops 32-bit support, the gaming-focused Bazzite project would be forced to shut down, according to its founder Kyle Gospodnetich. "As much as I'd like this change to happen, it's too soon," said Gospodneitch in a post. "This change would kill off projects like Bazzite entirely right as Fedora is starting to make major headway in the gaming space. Neal Gompa already pointed out basic use cases that would be broken even if someone built the packages Steam itself needs to function."

He continued: "It's also causing irreparable damage to Fedora from a PR standpoint. I have been inundated all day with people sharing news articles and being genuinely concerned Steam is gong to stop working on their Fedora/Bazzite machines. I would argue not only should this change be rejected, the proposal should be rescinded to limit further damage to Fedora as a project. Perhaps open a separate one to talk about changing build architecture to build fewer 32-bit packages?"

When pushed further, Gospodnetich said: "I'm speaking as it's founder, if this change is actually made as it is written the best option for us is to just go ahead and disband the project."

Microsoft has released a modern, open-source version of its classic MS-DOS Editor -- built with Rust and compatible with Windows, macOS, and Linux. It's now simple called "Edit." Ars Technica reports: Aside from ease of use, Microsoft's main reason for creating the new version of Edit stems from a peculiar gap in modern Windows. "What motivated us to build Edit was the need for a default CLI text editor in 64-bit versions of Windows," writes [Christopher Nguyen, a product manager on Microsoft's Windows Terminal team] while referring to the command-line interface, or CLI. "32-bit versions of Windows ship with the MS-DOS editor, but 64-bit versions do not have a CLI editor installed inbox." [...]

Linux users can download Edit from the project's GitHub releases page or install it through an unofficial snap package. Oh, and if you're a fan of the vintage editor and crave a 16-bit text-mode for your retro machine that actually runs MS-DOS, you can download a copy on the Internet Archive. [...]

At 250KB, the new Edit maintains the lightweight philosophy of its predecessor while adding features the original couldn't dream of: Unicode support, regular expressions, and the ability to handle gigabyte-sized files. The original editor was limited to files smaller than 300KB depending on available conventional memory -- a constraint that seems quaint in an era of terabyte storage. But the web publication OMG! Ubuntu found that the modern Edit not only "works great on Ubuntu" but noted its speed when handling gigabyte-sized documents.

"The worlds of Linux and Windows finally came together in real life..." writes The Verge: Microsoft co-founder Bill Gates and Linus Torvalds, the creator of the Linux kernel, have surprisingly never met before. That all changed at a recent dinner hosted by Sysinternals creator Mark Russinovich... "No major kernel decisions were made," jokes Russinovich in a post on LinkedIn.
More from the Linux news blog Linuxiac: The man on the left is Mark Russinovich, a software engineer, author, and co-founder of Sysinternals, now CTO of Azure, Microsoft's cloud computing platform. He has become synonymous with deep Windows diagnostics and cloud-scale management. In the late 1990s, his suite of tools (Process Explorer, Autoruns, Procmon) revolutionized the way administrators and security professionals understood Windows internals.

The man on the far right is another living legend: Dave Cutler. Let me put it this way — he's one of the key people behind OpenVMS and the brilliant lead architect who designed Windows NT's kernel and hardware-abstraction layer — technologies that remain at the heart of every current Windows release, from server farms to laptops. So, it's no surprise that people often call him the "father of Windows NT."

Valve has quietly updated the Steam Beta Client to enable Proton by default for all Windows games on Linux, eliminating the need for users to toggle compatibility settings manually. GamingOnLinux reports: For some context here: originally, Proton had an option to enable / disable it globally. That was removed with the Game Recording update last year. That made sense, because people kept somehow turning it entirely off and now it's required by Steam. Currently, there's still an option in the stable Steam Client that you need to manually check to enable Steam Play (Proton) for "all other titles". This is something of a leftover from when Proton was initially revealed, and only worked for a specific set of games on Valve's whitelist. It now covers what Valve set by default for Steam Deck and SteamOS verification.

What's changed is that at some point in the recent Steam Beta releases, is that "for all other titles" option is gone. I've scrolled back through changelogs and not seen it mentioned. So now, Proton is just enabled properly in full by default in the Steam Beta like shown in the [image here]. This is a good (and needed) change that I'm happy to see. There's often confusion when people try to run Windows games on Linux and end up with no install button because Proton isn't turned on for all titles. [This] will soon be a thing of the past. To be clear, this is not setting Proton on every game by default, it does not override Native Linux games. It's just making Proton available by default.

Rocky Linux 10 "Red Quartz" has reached general availability, notes a new article in The Register — surveying the differences between "RHELatives" — the major alternatives to Red Hat Enterprise Linux: The Rocky 10 release notes describe what's new, such as support for RISC-V computers. Balancing that, this version only supports the Raspberry Pi 4 and 5 series; it drops Rocky 9.x's support for the older Pi 3 and Pi Zero models...

RHEL 10 itself, and Rocky with it, now require x86-64-v3, meaning Intel "Haswell" generation kit from about 2013 onward. Uniquely among the RHELatives, AlmaLinux offers a separate build of version 10 for x86-64-v2 as well, meaning Intel "Nehalem" and later — chips from roughly 2008 onward. AlmaLinux has a history of still supporting hardware that's been dropped from RHEL and Rocky, which it's been doing since AlmaLinux 9.4. Now that includes CPUs. In comparison, the system requirements for Rocky Linux 10 are the same as for RHEL 10. The release notes say.... "The most significant change in Rocky Linux 10 is the removal of support for x86-64-v2 architectures. AMD and Intel 64-bit architectures for x86-64-v3 are now required."

A significant element of the advertising around RHEL 10 involves how it has an AI assistant. This is called Red Hat Enterprise Linux Lightspeed, and you can use it right from a shell prompt, as the documentation describes... It's much easier than searching man pages, especially if you don't know what to look for... [N]either AlmaLinux 10 nor Rocky Linux 10 includes the option of a helper bot. No big surprise there... [Rocky Linux] is sticking closest to upstream, thanks to a clever loophole to obtain source RPMs. Its hardware requirements also closely parallel RHEL 10, and CIQ is working on certifications, compliance, and special editions. Meanwhile, AlmaLinux is maintaining support for older hardware and CPUs, which will widen its appeal, and working with partners to ensure reboot-free updates and patching, rather than CIQ's keep-it-in-house approach. All are valid, and all three still look and work almost identically... except for the LLM bot assistant.

An anonymous reader quotes a report from ZDNet: Denmark's Minister of Digitalization, Caroline Stage, has announced that the Danish government will start moving away from Microsoft Office to LibreOffice. Why? It's not because open-source is better, although I would argue that it is, but because Denmark wants to claim "digital sovereignty." In the States, you probably haven't heard that phrase, but in the European Union, digital sovereignty is a big deal and getting bigger.

A combination of security, economic, political, and societal imperatives is driving the EU's digital sovereignty moves. EU leaders are seeking to reduce Europe's dependence on foreign technology providers, primarily those from the United States, and to assert greater control over its digital infrastructure, data, and technological future. Why? Because they're concerned about who controls European data, who sets the rules, and who can potentially cut off access to essential services in times of geopolitical tension. "Money issues have also played a decisive role," writes ZDNet's Steven Vaughan-Nichols. "Copenhagen's Microsoft software bill has soared from 313 million kroner in 2018 to 538 million kroner -- about $53 million in 2023, a 72% increase in just five years.

David Heinemeier Hansson (DHH), a Dane, inventor of Ruby on Rails, and co-owner of the software developer company 37Signals, has said: "Denmark is one of the most highly digitalized countries in the world. It's also one of the most Microsoft-dependent. In fact, Microsoft is by far and away the single biggest dependency, so it makes perfect sense to start the quest for digital sovereignty there."

BrianFagioli shares a report from NERDS.xyz: Apple has released a new developer tool on GitHub called Container, offering a fresh approach to running Linux containers directly on macOS. Unlike Docker or Podman, this tool is designed to feel at home in the Apple ecosystem and hooks into frameworks already built into the operating system. Container runs standard OCI images, but it doesn't use a single shared Linux VM. Instead, it creates a small Linux virtual machine for every container you spin up. That sounds heavy at first, but the VMs are lightweight and boot quickly. Each one is isolated, which Apple claims improves both security and privacy. Developers can run containerized workloads locally with native macOS support and without needing to install third-party container platforms.

The Register's Thomas Claburn reports: The Linux Foundation on Friday introduced a new method to distribute WordPress updates and plugins that's not controlled by any one party, in a bid to "stabilize the WordPress ecosystem" after months of infighting. The FAIR Package Manager project is a response to the legal brawl that erupted last year, pitting WordPress co-creator Matthew Mullenweg, his for-profit hosting firm Automattic, and the WordPress Foundation that he controls, against WP Engine, a rival commercial WordPress hosting firm. [...]

The Linux Foundation says the FAIR Package Manager, a mechanism for distributing open-source WordPress plugins, "eliminates reliance on any single source for core updates, plugins, themes, and more, unites a fragmented ecosystem by bringing together plugins from any source, and builds security into the supply chain." In other words, it can't be weaponized against the WordPress community because it won't be controlled by any one entity. "The FAIR Package Manager project paves the way for the stability and growth of open source content management, giving contributors and businesses additional options governed by a neutral community," said Jim Zemlin, Executive Director of the Linux Foundation, in a canned press statement. "We look forward to the growth in community and contributions this important project attracts."

The FAIR Package Manager repo explains the software's purpose more succinctly. The software "is a decentralized alternative to the central WordPress.org plugin and theme ecosystem, designed to return control to WordPress hosts and developers. It operates as a drop-in WordPress plugin, seamlessly replacing existing centralized services with a federated, open-source infrastructure." In addition to providing some measure of stability, the Linux Foundation sees the FAIR Package Manager as advancing WordPress' alignment with Europe's General Data Protection Regulation by reducing automatic browser data transmission and telemetry sent to commercial entities, while also supporting modern security practices and strengthening the open source software supply chain.

Linux user share on Steam rose to 2.69% in May 2025 -- the highest level recorded since at least 2018. GamingOnLinux reports: Overall user share for May 2025:

- Windows 95.45% -0.65%
- Linux 2.69% +0.42%
- macOS 1.85% +0.23%

Even with SteamOS 3 now being a little more widely available, the rise was not from SteamOS directly. Filtering to just the Linux numbers gives us these most popular distributions:

- SteamOS Holo 64 bit 30.95% -2.83%
- Arch Linux 64 bit 10.09% +0.64%
- Linux Mint 22.1 64 bit 7.76% +1.56%
- Freedesktop SDK 24.08 (Flatpak runtime) 64 bit 7.42% +1.01%
- Ubuntu Core 22 64 bit 4.63% +0.01%
- Ubuntu 24.04.2 LTS 64 bit 4.30% -0.14%
- CachyOS 64 bit 2.54% +2.54%
- EndeavourOS Linux 64 bit 2.44% -0.02%
- Manjaro Linux 64 bit 2.43% -0.18%
- Pop!_OS 22.04 LTS 64 bit 2.17% -0.06%
- Debian GNU/Linux 12 (bookworm) 64 bit 1.99% -0.28%
- Other 23.27% -2.27%

An anonymous reader shared this report from The Hacker News: Two information disclosure flaws have been identified in apport and systemd-coredump, the core dump handlers in Ubuntu, Red Hat Enterprise Linux, and Fedora, according to the Qualys Threat Research Unit (TRU).

Tracked as CVE-2025-5054 and CVE-2025-4598, both vulnerabilities are race condition bugs that could enable a local attacker to obtain access to access sensitive information. Tools like Apport and systemd-coredump are designed to handle crash reporting and core dumps in Linux systems. "These race conditions allow a local attacker to exploit a SUID program and gain read access to the resulting core dump," Saeed Abbasi, manager of product at Qualys TRU, said...

Red Hat said CVE-2025-4598 has been rated Moderate in severity owing to the high complexity in pulling an exploit for the vulnerability, noting that the attacker has to first win the race condition and be in possession of an unprivileged local account... Qualys has also developed proof-of-concept code for both vulnerabilities, demonstrating how a local attacker can exploit the coredump of a crashed unix_chkpwd process, which is used to verify the validity of a user's password, to obtain password hashes from the /etc/shadow file.
Advisories were also issued by Gentoo, Amazon Linux, and Debian, the article points out. (Though "It's worth noting that Debian systems aren't susceptible to CVE-2025-4598 by default, since they don't include any core dump handler unless the systemd-coredump package is manually installed.")

Canonical software security engineer Octavio Galland explains the issue on Canonical's blog. "If a local attacker manages to induce a crash in a privileged process and quickly replaces it with another one with the same process ID that resides inside a mount and pid namespace, apport will attempt to forward the core dump (which might contain sensitive information belonging to the original, privileged process) into the namespace... In order to successfully carry out the exploit, an attacker must have permissions to create user, mount and pid namespaces with full capabilities." Canonical's security team has released updates for the apport package for all affected Ubuntu releases... We recommend you upgrade all packages... The unattended-upgrades feature is enabled by default for Ubuntu 16.04 LTS onwards. This service:

- Applies new security updates every 24 hours automatically.
- If you have this enabled, the patches above will be automatically applied within 24 hours of being available.

New submitter salyavin writes: The final issue of Linux Format has been released. After 25 years the magazine is going out with a bang. Interviewing the old staff members, and looking back at old Linux distros [...] The last 10-15 years have been absolutely brutal to computer hobbyist magazines -- (or magazines and media at large, in general).

unixbhaskar shares a report from Phoronix: The X86_NATIVE_CPU Kconfig build time option has been merged for the Linux 6.16 merge window as an easy means of enforcing "-march=native" compiler behavior on AMD and Intel processors to optimize your kernel build for the local CPU architecture/family of your system. For those wanting to "-march=native" your Linux kernel build on AMD/Intel x86_64 processors, the new CONFIG_X86_NATIVE_CPU option can be easily enabled for setting that compiler option on your local kernel builds.

The CONFIG_X86_NATIVE_CPU option is honored if compiling the Linux x86_64 kernel with GCC or LLVM Clang when using Clang 19 or newer due to a compiler bug with the Linux kernel on older compiler versions. In addition to setting the "-march=native" compiler option for the Linux kernel C code, enabling this new Kconfig build option also sets "-Ctarget-cpu=native" for the kernel's Rust code too. "It seems interesting though," comments unixbhaskar. "If the detailed benchmark shows some improvement with the option selected, then distros might start to adopt it for their flavor."

SiFive was one of the first companies to produce a RISC-V chip. This week they announced a new collaboration with Red Hat "to bring Red Hat Enterprise Linux support to the rapidly growing RISC-V community" and "prepare Red Hat's product portfolio for future intersection with RISC-V server hardware from a diverse set of RISC-V suppliers."

Red Hat Enterprise Linux 10 is available in developer preview on the SiFive HiFive Premier P550 platform, which they call "a proven, high performance RISC-V CPU development platform." The SiFive HiFive Premier P550 provides a proven, high performance RISC-V CPU development platform. Adding support for Red Hat Enterprise Linux 10, the latest version of the world's leading enterprise Linux platform, enables developers to create, optimize, and release new applications for the next generation of enterprise servers and cloud infrastructure on the RISC-V architecture...

SiFive's high performance RISC-V technology is already being used by large organizations to meet compute-intensive AI and machine learning workloads in the datacenter... "With the growing demand for RISC-V, we are pleased to collaborate with SiFive to support Red Hat Enterprise Linux 10 deployments on SiFive HiFive Premier P550," said Ronald Pacheco, senior director of RHEL product and ecosystem strategy, "to further empower developers with the power of the world's leading enterprise Linux platform wherever and however they choose to deploy...."

Dave Altavilla, principal analyst at HotTech Vision And Analysis, said "Native Red Hat Enterprise Linux support on SiFive's HiFive Premier P550 board offers developers a substantial enterprise-grade toolchain for RISC-V.

"This is a pivotal step forward in enabling a full-stack ecosystem around open RISC-V hardware. SiFive says the move will "inspire the next generation of enterprise workloads and AI applications optimized for RISC-V," while helping their partners "deliver systems with a meaningfully lower total cost of ownership than incumbent platforms."

"With the growing demand for RISC-V, we are pleased to collaborate with SiFive to support Red Hat Enterprise Linux 10 deployments on SiFive HiFive Premier P550..." said Ronald Pacheco, senior director of RHEL product and ecosystem strategy. .

Beta News notes that there's also a new AI-powered assistant in RHEL 10, so "Instead of spending all day searching for answers or poking through documentation, admins can simply ask questions directly from the command line and get real-time help Security is front and center in this release, too. Red Hat is taking a proactive stance with early support for post-quantum cryptography. OpenSSL, GnuTLS, NSS, and OpenSSH now offer quantum-resistant options, setting the stage for better protection as threats evolve. There's a new sudo system role to help with privilege management, and OpenSSH has been bumped to version 9.9. Plus, with new Sequoia tools for OpenPGP, the door is open for even more robust encryption strategies. But it's not just about security and AI. Containers are now at the heart of RHEL 10 thanks to the new "image mode." With this feature, building and maintaining both the OS and your applications gets a lot more streamlined...

Last August a Microsoft security update broke dual-booting Windows 11 and Linux systems, remembers the blog Neowin. Distros like Debian, Ubuntu, Linux Mint, Zorin OS, and Puppy Linux were all affected, and "a couple of days later, Microsoft provided a slightly lengthy workaround that involved tweaking around with policies and the Registry in order to fix the problem."

The update "was meant to address a GRUB bootloader vulnerability that allowed malicious actors to bypass Secure Boot's safety mechanisms," notes the It's FOSS blog. "Luckily, there's now a proper fix for this, as Microsoft has quietly released a new patch on May 13, 2025, addressing the issue nine months after it was first reported... Meanwhile, many dual-boot users were left with borked setups, having to use workarounds or disable Secure Boot altogether."

A new set of 27 Linux kernel patches introduces a "Swap Tables" mechanism aimed at enhancing virtual memory management. As Phoronix's Michael Larabel reports, "the hope is for lower memory use, higher performance, dynamic swap allocation and growth, greater extensibility, and other improvements over the existing swap code within the Linux kernel." From the report: Engineer Kairui Song with Tencent posted the Swap Table patch series today for implementing the design ideas discussed in recent months by kernel developers. The results are very exciting so let's get straight to it: "With this series, swap subsystem will have a ~20-30% performance gain from basic sequential swap to heavy workloads, for both 4K and mTHP folios. The idle memory usage is already much lower, the average memory consumption is still the same or will also be even lower (with further works). And this enables many more future optimizations, with better defined swap operations." "The patches also clean-up and address various historical issues with the SWAP subsystem," notes Larabel.

Context: In Linux, swap space acts as an overflow for RAM, storing inactive memory pages on disk to free up RAM for active processes. Traditional swap mechanisms are limited in flexibility and performance. The proposed "Swap Tables" aim to address these issues by allowing more efficient and dynamic management of swap space, potentially leading to better system responsiveness and resource utilization.

An anonymous reader quotes a report from ZDNet: Would you believe Microsoft has announced a new Linux distribution service for its Azure cloud service? You should. For many years, the most popular operating system on Azure has not been Windows Server, it's been Linux. Last time I checked, in 2024, Azure Linux Platforms Group Program Manager Jack Aboutboul told me that 60% of Azure Marketplace offerings and more than 60% of virtual machine cores use Linux. Those figures mean it's sensible for Microsoft to make it easier than ever for Linux distributors to release first-class Linux distros on Azure. The tech giant is taking this step, said Andrew Randall, principal manager for the Azure Core Linux product management team, by making "Azure Image Testing for Linux (AITL) available 'as a service' to distro publishers."

ATIL is built on Microsoft's Linux Integration Services Automation project (LISA). Microsoft's Linux Systems Group originally developed this initiative to validate Linux OS images. LISA is a Linux quality validation system with two parts: a test framework to drive test execution and a set of test suites to verify Linux distribution quality. LISA is now open-sourced under the MIT License. The system enables continuous testing of Linux images, covering a wide range of scenarios from kernel updates to complex cloud-native workloads. [...] Specifically, the ATIL service is designed to streamline the deployment, testing, and management of Linux images on Azure. The service builds on the company's internal expertise and open-source tools to provide:

- Curated, Azure-optimized, security-hardened Linux images
- Automated quality assurance and compliance testing for Linux distributions
- Seamless integration with Azure's cloud-native services and Kubernetes environments Krum Kashan, Microsoft Azure Linux Platforms Group program manager, said in a statement: "While numerous testing tools are available for validating Linux kernels, guest OS images, and user space packages across various cloud platforms, finding a comprehensive testing framework that addresses the entire platform stack remains a significant challenge. A robust framework is essential, one that seamlessly integrates with Azure's environment while providing coverage for major testing tools, such as LTP and kselftest, and covers critical areas like networking, storage, and specialized workloads, including Confidential VMs, HPC, and GPU scenarios. This unified testing framework is invaluable for developers, Linux distribution providers, and customers who build custom kernels and images."