# Kernel A kernel is the central component of an operating system that manages critical system processes and enables interaction between software and hardware. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Systemtap 5.6 released DevFeed: [Systemtap 5.6 released]() Original publisher: [Read original article]() Author: corbet Published: 2026-09-18T12:58:42Z Content type: release Language: en Sources: [LWN.net]() Topics: [tracing](), [Kernel](), [Linux](), [processing](), [systemd](), [hooks]() Tags: [hooks](), [kernel](), [linux](), [processing](), [service](), [systemd](), [tracepoint](), [tracing](), [version]() ### AI overview SystemTap 5.6 has been released with new BPF LSM and XDP probes, BTF-based kernel tracepoint probes, statement execution tracing, improved runtime error context, dyninst hardware watchpoints, updated systemd service templates, Linux 7.2 compatibility work, and multithreaded performance improvements. ### Source excerpt 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. ## A unified view of Android security updates for enterprises and OEMs DevFeed: [A unified view of Android security updates for enterprises and OEMs]() Original publisher: [Read original article]() Author: Joseph Yong Published: 2026-09-17T20:00:00Z Content type: release Language: en Sources: [Security]() Topics: [Security](), [Library](), [Android Security](), [Android](), [Kernel](), [Operating system](), [Zero Trust](), [App]() Tags: [android](), [android-security](), [app](), [kernel](), [library](), [none](), [os](), [security](), [updates](), [zero-trust]() ### AI overview Google is launching the Security-State and Security-State-Provider libraries to give Android Enterprise partners, OEMs, and security-sensitive apps a unified view of security updates across the operating system, system modules, and kernel. The libraries support access decisions based on installed, published, and pending fixes. ### Source excerpt Security State Library ## Proposal Raised To Finally Standardize Video Memory Stats Reporting Under Linux DevFeed: [Proposal Raised To Finally Standardize Video Memory Stats Reporting Under Linux]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-17T15:17:24Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux Kernel](), [Linux](), [Kernel](), [Graphics]() Tags: [desktop-linux](), [drm](), [graphics](), [igalia](), [kernel](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [phoronix](), [phoronix-test-suite](), [rfc](), [ubuntu-benchmarks](), [ubuntu-hardware](), [vram]() ### AI overview A proposal led by Tvrtko Ursulin of Igalia would standardize cross-vendor video memory statistics reporting for Linux DRM drivers. The proposed sysfs interface would expose total and used memory for regions such as vRAM and GTT, with an AMDGPU implementation included for discussion. ### Source excerpt The idea has been talked about before but in 2026 still hasn't made it to the mainline Linux kernel.... Standardized reporting of video memory statistics that would work across different vendors / kernel graphics drivers. A new proposal was raised today in an effort to get a standardized interface established... ## \[$\] Thread-identity switcheroo for io\_uring DevFeed: [\[$\] Thread-identity switcheroo for io\_uring]() Original publisher: [Read original article]() Author: corbet Published: 2026-09-17T13:49:59Z Content type: article Language: en Sources: [LWN.net]() Topics: [io\_uring](), [execution](), [Kernel]() Tags: [asynchronous](), [execution](), [io-uring](), [kernel](), [performance](), [rfc](), [thread]() ### AI overview An RFC patch set proposes a new approach to preserving io_uring's guarantee that applications do not block during asynchronous execution. The proposal addresses kernel paths not designed for asynchronous execution and the performance cost of existing workarounds. ### Source excerpt 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. ## 7 Proxmox Checks I Make Before I Trust a New Host DevFeed: [7 Proxmox Checks I Make Before I Trust a New Host]() Original publisher: [Read original article]() Author: Brandon Lee Published: 2026-09-17T12:55:35Z Content type: tutorial Language: en Sources: [Virtualization Howto]() Topics: [Proxmox](), [virtualization](), [configuration](), [Server](), [patches](), [Authentication](), [certificates](), [Logging](), [Kernel]() Tags: [authentication](), [certificates](), [configuration](), [kernel](), [logging](), [patches](), [proxmox](), [security](), [server](), [virtualization]() ### AI overview A practical checklist for validating a new Proxmox VE host before moving important virtual machines or containers onto it. The checks cover hostname, DNS, time synchronization, repositories, updates, kernel versions, and related system readiness concerns. ### Source excerpt Installing Proxmox VE Server on a new host or mini PC is the easy part in most cases. This process is usually a non event as you just have the... The post 7 Proxmox Checks I Make Before I Trust a New Host appeared first on Virtualization Howto. ## New Linux Driver Coming To Improve ASUS Zenbook Snapdragon X2 Support DevFeed: [New Linux Driver Coming To Improve ASUS Zenbook Snapdragon X2 Support]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-17T12:04:09Z Content type: news Language: en Sources: [Phoronix]() Topics: [ASUS](), [Linux](), [Qualcomm](), [Kernel](), [SOC](), [patches](), [Embedded Software Dev]() Tags: [asus](), [desktop-linux](), [driver](), [embedded](), [firmware](), [kernel](), [keyboard](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [patches](), [phoronix](), [phoronix-test-suite](), [qualcomm](), [soc](), [suspend](), [testing](), [ubuntu-benchmarks](), [ubuntu-hardware]() ### AI overview Qualcomm developer Konrad Dybcio posted Linux kernel patches for a new asus-glymur-ec driver to improve embedded-controller support on Snapdragon X2-powered ASUS Zenbook A14 and A16 laptops. The driver can report fan speeds and temperatures, control keyboard backlight brightness, and handle suspend and resume notifications. ### Source excerpt For those hopeful of running Linux well on the ASUS Zenbook A14 or A16 laptops powered by the latest Qualcomm Snapdragon X2 SoC, a new ASUS EC driver has been developed for enhancing the support... ## GPT-6 Astra Is the First Model OpenAI Classifies as Critical for Cybersecurity DevFeed: [GPT-6 Astra Is the First Model OpenAI Classifies as Critical for Cybersecurity]() Original publisher: [Read original article]() Author: Steef-Jan Wiggers Published: 2026-09-17T04:59:00Z Content type: news Language: en Sources: [InfoQ]() Topics: [Cybersecurity](), [gpt-6-astra](), [OpenAI](), [Vulnerabilities](), [Exploit](), [browser](), [Kernel](), [Chain-of-thought]() Tags: [agents](), [ai](), [ai-ml-data-engineering](), [architecture](), [architecture-design](), [azure](), [browser](), [chain-of-thought](), [cloud](), [cybersecurity](), [development](), [devops](), [exploit](), [generative-ai](), [governance](), [gpt-6-astra](), [gpt-6-astra-critical-cyber](), [kernel](), [machine-learning](), [ml-data-engineering](), [news](), [openai](), [vulnerabilities](), [zero-day]() ### AI overview OpenAI classified GPT-6 Astra as the first model to reach its Critical cybersecurity threshold. Expert-led evaluations reported previously unknown vulnerabilities in a browser and an operating-system kernel, along with working exploit chains. The system card also reported a substantial decline in chain-of-thought monitorability. ### Source excerpt OpenAI has classified GPT-6 Astra at the Critical cybersecurity threshold under its Preparedness Framework, a first. In expert-led testing the model found previously unknown vulnerabilities in a browser and an OS kernel and built working exploits. The same system card reports a substantial decline in chain-of-thought monitorability. By Steef-Jan Wiggers ## Encrypted /boot/ on LUKSv2 now possible in Libreboot GRUB (PHC argon2 imported) DevFeed: [Encrypted /boot/ on LUKSv2 now possible in Libreboot GRUB (PHC argon2 imported)]() Original publisher: [Read original article]() Author: Leah Rowe Published: 2026-09-17T04:32:50.666044Z Content type: news Language: en Sources: [News about Libreboot releases and development]() Topics: [Encryption](), [Cryptography](), [Kernel]() Tags: [bios](), [canoeboot](), [coreboot](), [encryption](), [free-software](), [grub](), [libre](), [libreboot](), [linux](), [linux-kernel](), [opensource](), [patches](), [releases](), [security](), [uefi](), [upgrade]() ### AI overview Libreboot's version of GRUB now supports Argon2 key derivation for encrypted LUKSv2 /boot partitions. The patches were rebased for GRUB 2.12, and support became available in Libreboot 20231021 and later releases. ### Source excerpt Article: Encrypted /boot/ on LUKSv2 now possible in Libreboot GRUB (PHC argon2 imported) Web link: https://libreboot.org/news/argon2.html ## Linux's Yogafan Driver Prepares Support For Newer Lenovo Laptops DevFeed: [Linux's Yogafan Driver Prepares Support For Newer Lenovo Laptops]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-16T10:29:22Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux](), [Kernel](), [Monitoring](), [patches](), [Open Source]() Tags: [desktop-linux](), [driver](), [kernel](), [laptops](), [lenovo](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-performance](), [linux-server-benchmarks](), [monitoring](), [open-source](), [open-source-graphics](), [patches](), [phoronix](), [phoronix-test-suite](), [ubuntu-benchmarks](), [ubuntu-hardware]() ### AI overview The Yogafan HWMON driver is gaining support for several newer Lenovo laptops in the upcoming Linux 7.4 kernel cycle. Patches queued in the hwmon-next branch add fan speed monitoring support for the Lenovo Yoga Pro 9 16IMH9, Yoga 740-15IML, IdeaPad 3 15ALC6 Ub, and Yoga 14cACN 2021. ### Source excerpt Introduced back in Linux 7.1 was the Yogafan HWMON driver for supporting fan speed monitoring across various Lenovo Yoga, Legion, Flex, Slim, and IdeaPad laptops. An initial set of Lenovo laptops was initially supported by this driver while succeeding kernel versions have continued building out the support... ## Linux 7.4 slated to merge AVX-512 optimization for xor\_gen() DevFeed: [Linux 7.4 slated to merge AVX-512 optimization for xor\_gen()]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-16T00:53:15Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux](), [Kernel](), [patches](), [Code](), [cpu](), [intel](), [Google]() Tags: [amd](), [cpu](), [desktop-linux](), [google](), [intel](), [kernel](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-kernel](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [patches](), [phoronix](), [phoronix-test-suite](), [server-cpus](), [ubuntu-benchmarks](), [ubuntu-hardware](), [xor]() ### AI overview Linux 7.4 is slated to merge an AVX-512 optimization for xor_gen(), a function used by Linux software RAID to generate and validate parity blocks for RAID5 and RAID6. The patches report performance gains on AMD Zen 4 and newer CPUs and current Intel server CPUs with AVX-512, subject to final merge-window changes. ### Source excerpt Over the past few months there have been patches floating around for an AVX-512 optimized xor_gen() for the Linux kernel for that functuon used by the Linux software RAID code. It's been shhowing very nice performance gains with this function being used for generating and validating parity blocks such as for RAID5 and RAID6. The upcoming Linux 7.4 cycle is slated to merge this nice enhancement for benefiting AMD Zen 4 and newer or current Intel server CPUs with AVX-512... ## How to Write a Linux Kernel Module That Actually Builds DevFeed: [How to Write a Linux Kernel Module That Actually Builds]() Original publisher: [Read original article]() Author: Chris Roy Published: 2026-09-15T21:10:57Z Content type: tutorial Language: en Sources: [freeCodeCamp Programming Tutorials: Python, JavaScript, Git & More]() Topics: [Kernel](), [Linux](), [modules](), [Compiler](), [Secure Boot]() Tags: [compiler](), [kernel](), [linux](), [linux-kernel](), [module](), [secure-boot](), [tutorial]() ### AI overview This tutorial explains how to build and load a Linux kernel module, including the generated object files, metadata, symbols, debug information, required kernel headers and compiler setup, and common Secure Boot and kernel lockdown restrictions. ### Source excerpt A Linux kernel module is a small piece of code that can be loaded into the running kernel without rebuilding the entire kernel. That sounds simple enough, but even a minimal module produces a surprisi ## AMD P-State Driver For Linux 7.4 Will Tune For Zen 6 Client CPUs DevFeed: [AMD P-State Driver For Linux 7.4 Will Tune For Zen 6 Client CPUs]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-15T19:03:22Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux](), [Kernel](), [cpu]() Tags: [amd](), [cpu](), [desktop-linux](), [driver](), [features](), [kernel](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [phoronix](), [phoronix-test-suite](), [ubuntu-benchmarks](), [ubuntu-hardware]() ### AI overview The Linux 7.4 AMD P-State driver is being updated with Energy Performance Preference tuning for Zen 6 client CPUs. The changes address different Zen 6 core types, including a new low-power core type, and calculate boost ratios from frequency values. ### Source excerpt Linux 7.4 looks like it will be a very exciting kernel update for AMD customers. On the AMD Radeon graphics side HDMI 2.1 is being enabled by default with the AMDGPU driver with the HDMI FreeSync, VRR, and ALLM features in tow. On the AMD Ryzen client CPU side, there will be Zen 6 tuning with the AMD P-State CPU frequency scaling driver... ## \[$\] Adding BPF to blk-iocost DevFeed: [\[$\] Adding BPF to blk-iocost]() Original publisher: [Read original article]() Author: corbet Published: 2026-09-15T14:37:30Z Content type: article Language: en Sources: [LWN.net]() Topics: [Kernel](), [IO](), [ordering](), [Operating system]() Tags: [kernels](), [loading](), [ordering](), [performance]() ### AI overview This article discusses a patch series that would make the Linux blk-iocost I/O controller more flexible by allowing a BPF program to make cost decisions. It places the change in the context of block I/O scheduling for modern solid-state drives, where fairness and high throughput are important. ### Source excerpt The scheduling of block I/O requests has long been a challenge for operating-system kernels. For many years, the performance characteristics of rotating drives meant that putting considerable resources into request ordering was worthwhile. In a world with fast, solid-state drives, scheduling is more concerned with enforcing fairness between competing users while being fast enough to keep up with drives that can perform millions of I/O operations per second. The blk-iocost I/O controller was designed for the solid-state world and generally performs well, but there is always a desire to do better. This patch series from Tao Cui aims to make blk-iocost more flexible by enabling the loading of a BPF program to make cost decisions. ## New Linux Patches Improving Hibernation Speed In 2026 DevFeed: [New Linux Patches Improving Hibernation Speed In 2026]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-15T10:30:22Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux](), [Kernel](), [IO](), [qemu]() Tags: [2026](), [desktop-linux](), [kernel](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-kernel](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [performance](), [phoronix](), [phoronix-test-suite](), [qemu](), [ubuntu-benchmarks](), [ubuntu-hardware]() ### AI overview A Linux kernel patch series proposes faster hibernation by improving swap-slot allocation and batching image I/O. Preliminary QEMU testing reported 18-25% lower write times and 11-20% faster reads, but the patches are not complete. ### Source excerpt A new patch series being worked on is enhancing the Linux kernel's hibernation allocator to allow for faster performance when hibernating the system... ## Linux Patch Coming To Fix Under-Reported AMD Zen 5 TLB Sizes DevFeed: [Linux Patch Coming To Fix Under-Reported AMD Zen 5 TLB Sizes]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-15T10:05:51Z Content type: news Language: en Sources: [Phoronix]() Topics: [Linux](), [cpu](), [x86](), [Kernel]() Tags: [amd](), [cpu](), [desktop-linux](), [issue](), [kernel](), [linux](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-kernel](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [phoronix](), [phoronix-test-suite](), [processors](), [reporting](), [ubuntu-benchmarks](), [ubuntu-hardware](), [x86]() ### AI overview A Linux kernel patch corrects under-reported Translation Lookaside Buffer sizes for AMD Zen 5 EPYC and Ryzen processors. The change also supports Zen 6 and future AMD CPUs using the same reporting bit. ### Source excerpt A minor reporting issue on Linux that has gone unaddressed until now is for properly conveying the Translation Lookaside Buffer (TLB) sizes on AMD Zen 5 processors... ## How Solaris' Turnstile Influenced the Modern System Designs of Web Browsers and Language Runtimes DevFeed: [How Solaris' Turnstile Influenced the Modern System Designs of Web Browsers and Language Runtimes]() Original publisher: [Read original article]() Author: Olimpiu Pop Published: 2026-09-15T06:06:00Z Content type: article Language: en Sources: [InfoQ]() Topics: [systems](), [Programming](), [Kernel](), [observability](), [browsers](), [web browsers]() Tags: [architecture](), [architecture-design](), [architectures](), [blocking](), [concurrency](), [development](), [efficiency](), [kernel](), [locking](), [memory](), [news](), [observability](), [operating-systems](), [solaris](), [storage](), [systems](), [turnstile-system-design]() ### AI overview The article examines how Solaris innovations influenced modern systems engineering. It discusses the Slab Allocator, OpenZFS, DTrace, Zones, and turnstiles, focusing on how turnstiles reduce per-lock memory overhead while supporting priority inheritance for contended locks. ### Source excerpt Sun's Solaris influenced modern systems engineering, with key innovations like the Slab Allocator for efficient memory management, OpenZFS for advanced storage, and DTrace for observability. Its turnstile mechanism addressed issues with mutexes, promoting lean locking designs that are reflected in contemporary programming languages and web browsers, enhancing performance and memory efficiency. By Olimpiu Pop ## Amazon Linux 2027 Enters Public Preview with SELinux Enforcing by Default DevFeed: [Amazon Linux 2027 Enters Public Preview with SELinux Enforcing by Default]() Original publisher: [Read original article]() Author: Steef-Jan Wiggers Published: 2026-09-15T03:40:00Z Content type: news Language: en Sources: [InfoQ]() Topics: [Linux](), [SELinux](), [migration](), [Amazon Web Services](), [Kernel](), [amazon]() Tags: [amazon](), [amazon-linux-2027-preview](), [architecture](), [architecture-design](), [aws](), [cloud](), [development](), [devops](), [ec2](), [infrastructure](), [kernel](), [linux](), [migration](), [news](), [operating-systems](), [preview](), [selinux](), [x86-64]() ### AI overview AWS has released Amazon Linux 2027 in public preview with SELinux enforcing by default. The change may require application and migration work because policies that only logged violations on AL2023 can block applications on AL2027. The release has no announced AL2023 end-of-support date, general-availability date, or in-place migration path. ### Source excerpt AWS has released Amazon Linux 2027 in public preview, built on the AL2023 baseline with kernel 7.1 and SELinux in enforcing mode by default. Applications that pass on AL2023's permissive mode may fail under enforcing. The announcement gives no AL2023 end-of-support date, no GA date, and no in-place migration path. By Steef-Jan Wiggers ## Kubernetes v1.37: Memory QoS Graduates to Beta DevFeed: [Kubernetes v1.37: Memory QoS Graduates to Beta]() Original publisher: [Read original article]() Author: Qi Wang; Sohan Kunkerkar Published: 2026-09-14T18:30:00Z Content type: article Language: en Sources: [Kubernetes Blog]() Topics: [Kubernetes](), [releases](), [configuration](), [Linux](), [Kernel]() Tags: [clusters](), [configuration](), [container](), [kernel](), [kubernetes](), [linux](), [memory](), [qos](), [releases](), [upgrade](), [v1]() ### AI overview Kubernetes v1.37 promotes Memory QoS to Beta and enables it by default on Linux nodes using cgroup v2. The article explains the updated defaults, configuration options for memory throttling and tiered memory protection, and upgrade behavior intended to preserve existing runtime behavior. ### Source excerpt Memory QoS has graduated to Beta in Kubernetes v1.37 and is now enabled by default. On Linux nodes running cgroup v2, the feature uses the memory controller to give the kernel better guidance on how to treat container memory. It was first introduced as Alpha in v1.22, and expanded in v1.36 with tiered memory reservation. This post covers what changed in v1.37, what the Beta promotion means for cluster operators, and how to configure the feature. What changed in v1.37Memory QoS is Beta and enabled by default The MemoryQoS feature gate is now Beta in v1.37. This means every v1.37 kubelet has the feature gate turned on without any configuration change. Turning on the feature by default is safe because the default kubelet configuration does not enable memory throttling or memory reservation. No memory.high, memory.min, or memory.low values are written to cgroups unless you explicitly configure them. You can opt into specific behaviors through kubelet configuration fields: Set memoryThrottlingFactor (for example, 0.9) to enable memory.high throttling on Burstable and BestEffort containers. The default is null, which means no throttling. Set memoryReservationPolicy to TieredReservation to enable tiered memory protection via memory.min and memory.low. The default is None, which means no memory reservation. Default memoryThrottlingFactor changed to null In earlier Alpha releases, memoryThrottlingFactor defaulted to 0.9, which meant enabling the feature gate caused the kubelet to set memory.high on containers. In v1.37, the default is null, so the kubelet does not set memory.high unless you configure a value. This change was made because, with the feature gate now on by default, an automatic memory.high could throttle workloads that were previously running without throttling. Making it null ensures that upgrading to v1.37 does not change runtime behavior for existing clusters. If your kubelet configuration file already contains an explicit memoryThrottlingFactor value, that ## Kernel prepatch 7.3-rc3 DevFeed: [Kernel prepatch 7.3-rc3]() Original publisher: [Read original article]() Author: corbet Published: 2026-09-13T22:32:53Z Content type: news Language: en Sources: [LWN.net]() Topics: [Kernel](), [Testing]() Tags: [filesystem](), [kernel](), [release](), [testing]() ### AI overview The Linux kernel 7.3-rc3 prepatch has been released for testing. Linus Torvalds described it as a relatively large release candidate with a larger-than-usual filesystem footprint. ### Source excerpt The 7.3-rc3 kernel prepatch is out for testing. Linus said: "Another fairly large rc release, and again one with a bigger filesystem footprint that we usually see." ## \[$\] Accelerating the kernel's build process DevFeed: [\[$\] Accelerating the kernel's build process]() Original publisher: [Read original article]() Author: corbet Published: 2026-09-11T14:15:32Z Content type: article Language: en Sources: [LWN.net]() Topics: [Kernel](), [Large Language Model]() Tags: [build](), [kernel](), [llm]() ### AI overview The article describes how Lorenzo Stoakes used assistance based on large language models to improve the Linux kernel's complex build system and substantially reduce kernel build times. ### Source excerpt Kernel developers do a lot of kernel builds. Since the kernel is not a small program, those builds can take a fair amount of time, even on a fast machine. The kernel also has a complex build system; it is probably fair to say that few developers truly understand it, and fewer still are willing to try to improve it. Lorenzo Stoakes, armed with LLM-based assistance, decided to give it a try, though, and has managed to reduce the time it takes to build a kernel -- and not by a small amount. ## kube-proxy in iptables Mode and Native nftables Rules in the Forward Chain DevFeed: [kube-proxy in iptables Mode and Native nftables Rules in the Forward Chain]() Original publisher: [Read original article]() Author: Philipp Lehmann (philipp.lehmann@gruppe.ai) Published: 2026-09-08T07:00:00Z Content type: article Language: en Sources: [Philipp Lehmann]() Topics: [proxy](), [Kernel](), [Virtual Private Network]() Tags: [firewall](), [handle](), [ip](), [kernel](), [kubernetes](), [linux](), [networking](), [proxy](), [reliability](), [vpn]() ### AI overview The article explains how native nftables rules added by a WireGuard-based mesh agent to the FORWARD chain can cause kube-proxy in iptables mode to abort synchronization silently, leaving service endpoints stale. It describes removing the conflicting rules by handle. ### Source excerpt kube-proxy iptables-nft sync silently aborts on native nftables rules a mesh agent adds to the FORWARD chain. Fix: nft delete rule by handle, ip and ip6. ## YuzukiNeko - A Linux-capable Allwinner F101 RISC-V SBC with Raspberry Pi Pico form factor DevFeed: [YuzukiNeko - A Linux-capable Allwinner F101 RISC-V SBC with Raspberry Pi Pico form factor]() Original publisher: [Read original article]() Author: Jean-Luc Aufranc (CNXSoft) Published: 2026-09-07T17:01:57Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [Raspberry Pi](), [Linux](), [RISC-V](), [Hardware](), [SOC](), [Embedded Systems](), [Open Source](), [Kernel](), [Software]() Tags: [allwinner](), [allwinner-d-series](), [buildroot](), [cpu](), [embedded-systems](), [gpio](), [hardware](), [linux](), [linux-7-x](), [mipi](), [open-source](), [psram](), [raspberry-pi](), [risc-v](), [single-board-computer](), [specifications](), [spi](), [storage](), [usb](), [zephyr](), [zephyr-os]() ### AI overview YuzukiHD has introduced YuzukiNeko, a Raspberry Pi Pico-sized open-source single-board computer built around the Allwinner F101 RISC-V SoC. It includes a 1.008 GHz C907 core, 8MB or 16MB PSRAM, SPI NOR flash, microSD storage, USB-C, and GPIO expansion, with support for Linux, Buildroot, and Zephyr RTOS. ### Source excerpt YuzukiHD has made another open-source hardware Linux SBC. YuzukiNeko is a Raspberry Pi Pico-sized single board computer powered by a new Allwinner F101 RISC-V SoC. The Allwinner F101 processor features a single 1.008 GHz C907 RISC-V core, 8MB or 16 MB PSRAM, and support for various display interfaces such as MIPI DSI, 24-bit RGB, and LVDS. The YuzukiNeko board itself features the F101 SoC, an SPI NOR flash, a microSD card for storage, a USB-C port, and two 20-pin GPIO headers. YuzukiNeko specifications: SoC - Allwinner F101 CPU - T-head C907 RISC-V core up to 1.008 GHz Memory - 8MB or 16MB PSRAM @ 252 MHz Package - QFN-68 Storage 128 Mbit NOR flash (PY25Q128HA-SUH-IT) MicroSD card slot USB - USB Type-C port for data, power, and programming Expansion 2x 20-pin expansion headers with GPIOs, ADC, 5V, 3.3V, and GND 5x pads with HP out (analog speaker output) and four [...] The post YuzukiNeko - A Linux-capable Allwinner F101 RISC-V SBC with Raspberry Pi Pico form factor appeared first on CNX Software - Embedded Systems News. ## I moved my laptop to a rolling-release distro and the snapshots did the heavy lifting DevFeed: [I moved my laptop to a rolling-release distro and the snapshots did the heavy lifting]() Original publisher: [Read original article]() Author: Shed Stack Published: 2026-09-06T18:00:00Z Content type: opinion Language: en Sources: [Shed Stack]() Topics: [btrfs](), [Kernel](), [Hardware]() Tags: [boot](), [bootloader](), [btrfs](), [driver](), [laptop](), [packages](), [rollback](), [snapshots](), [update]() ### AI overview The author describes moving a laptop to CachyOS, a rolling-release distribution, to obtain newer kernels and packages. Automatic Btrfs snapshots managed with snapper provide rollback protection when updates affect boot components, drivers, or the desktop. ### Source excerpt CachyOS, snapper, and the DPTF fix. What a rolling release is actually like when you keep a parachute. ## Using C++ and heterogeneous lookup to develop a driver for a microkernel operating system DevFeed: [Using C++ and heterogeneous lookup to develop a driver for a microkernel operating system]() Original publisher: [Read original article]() Author: THE\_GABBER ("Лаборатория Касперского") Published: 2026-09-04T10:26:06Z Content type: article Language: ru Sources: ["Лаборатория Касперского" RU]() Topics: [C++](), [Kernel](), [Hardware]() Tags: [c-plus-plus](), [kasperskyos](), [stl](), [stl-containers](), [tag-6a561fc81855](), [tag-755e20708909](), [tag-9d72402955ce](), [tag-a7f27c878c10]() ### AI overview The article describes using C++ to develop a driver for a microkernel operating system. It focuses on heterogeneous lookup and explains how C++ features can support data-structure handling and more reliable low-level code. ### Source excerpt Нужен драйвер -- пиши на C. Нужно что-то рядом с ядром -- тем более пиши на C. В низкоуровневой разработке этот подход воспринимается почти как правило по умолчанию. Но иногда задача требует большей выразительности, больше удобной работы со структурами данных и дополнительных гарантий со стороны языка. Меня зовут Женя Ерохин, у меня около 15 лет опыта разработки драйверов на C++ под macOS. Сейчас я старший разработчик в Kaspersky Lab, занимаюсь операционной системой KasperskyOS. Много всего создал в ее микроядре, а теперь знакомлю нашу ось со всяким железом на мобильных устройствах. Под катом я покажу, как мы использовали C++ при разработке драйвера для микроядерной ОС. В том числе разберу гетерогенный lookup -- возможность выполнять поиск по разным типам аргументов без лишних преобразований. На практике такая фича хорошо показывает, почему C++ может быть полезен даже там, где обычно ждут C. Я расскажу, почему драйверы на C++ для микроядерной ОС -- вполне рабочее инженерное решение. Покажу, где именно плюсы помогают писать более аккуратный и надежный код, как они упрощают работу со структурами данных и почему в нашей задаче такой выбор оказался естественным. Читать далее [Next page]()