Linux 7.2 To Add Support For Switchtec PCIe Gen6 Switches

The upcoming Linux 7.2 kernel will be adding support for Microchip's Switchtec PCIe Gen6 switches.

Microchip announced last year the Gen 6 PCIe Switchtec family manufactured on a 3nm process, full support for PCIe Gen 6, and capable of handling AI/ML training clusters, hyperscale cloud platforms, NVMe PCIe 6.0 storage support, and more. The Switchtec PCIe Gen 6 switches come in configurations up to 20 ports and 160 lanes with the PFX 160xG6 switch or some
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AMD Ryzen AI & Intel NPU Drivers Adding New Power Features With Linux 7.2

Last week's drm-misc-next pull request of new Direct Rendering Manager and accelerator driver feature material destined for Linux 7.2 include some new power management control features both for the AMD Ryzen AI and Intel NPU drivers.

The AMDXDNA accelerator driver for Ryzen AI NPUs is adding new "low" and "medium" power modes. The low mode enables clock gating and sets the dynamic power management level to the lowest level possible. Medium also enables clock gating and sets the dynamic power management level to half.
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Sculpt OS 26.04 Can Finally Be Used To Self-Host For Developing/Building Genode

Sculpt OS as the general purpose operating system built off the Genode OS Framework is out with a new feature release.

Sculpt OS 26.04 was quietly released at the end of April to incorporate the latest enhancements to this original, source-based OS built atop Genode. Sculpt OS 26.04 has updated all of its Linux-based drivers against the Linux 6.18 LTS state to greatly improve hardware compatibility for modern Intel/PC hardware. Laptop support has also specifically improved and enabled new
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Linux 7.0.6 Released To Finish Mitigating the Dirty Frag Vulnerability

Linux 7.0.6 is out as stable this morning to finish mitigating the Dirty Frag vulnerability that was made public last week.

The embargo was broken on Dirty Frag last week ahead of schedule and thus proper fixes for the Linux kernel were yet in place for taking care of this local privilege escalation issue. Dirty Frag makes it easy to go root on all Linux distributions but thankfully Linux 7.0.6 is now out to fully resolve Dirty Frag.

The lone patch making up Linux 7.0.6
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Linux 7.1-rc3 Released With Many Networking Changes

Linus Torvalds just issued the third weekly test candidate of the Linux 7.1 kernel with around a third of the patches being for the networking subsystem.

One of the few notable merges this week on my radar was Intel enabling Auto Counter Reload "ACR" for Xeon Diamond Rapids . The rest of the work this week revolved around the usual bug and regression fixes plus the security fixes as well.

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Axboe Hacking On New Linux Patches For 60% Increase To Per-Core I/O Performance

Following a presentation at last week's Linux storage, file-system, memory management and BPF summit (LSFMM) in Croatia where Linux I/O overhead compared to the Storage Performance Development Kit (SPDK) was presented, Jens Axboe was motivated to pursue some new Linux kernel optimizations for greater per-core I/O performance. This lead IO_uring developer and Linux block maintainer has managed to achieve around a 60% increase to the per-core I/O performance with his latest patches.

Jens
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Debian Release Team: Debian Must Now Ship Reproducible Packages

With half-way through the Debian 14 "Forky" development cycle, the Debian release team is out with an update this weekend and some big news.

The Debian release team has decided the time has come to announce that Debian must ship reproducible packages. Debian has made much progress the past few years via the Reproducible Builds effort for ensuring independent users can reproduce the same package builds / binaries bit-for-bit. Independently-verifiable path from source to binary has become increasingly important for security concerns and validating the
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OpenAI's Coding Agent Helped Create A New AMD Temperature Driver For Linux

The newest open-source AMD Linux driver on the Linux kernel mailing list that has recently been undergoing review is prom21-xhci that exposes the temperature sensors found on the AMD Promontory 21 chipsets' xHCI controllers.

The Promontory 21 architecture is used by AMD's 600 and 800 series AM5 chipsets. While there is the CPU temperature monitoring available with all recent AMD processors, desktop motherboard sensor monitoring varies by particular motherboard,, and other Linux temperature sensor options for AMD systems,
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Kconfirm Is On A Quest To Clean Up The Linux Kernel's Configuration System

New tooling being worked on for possible mainline Linux kernel inclusion is Kconfirm as a new tool for detecting misusage and efforts stemming from Kconfig, the configuration system for kernel builds.

Initially presented on the Linux kernel mailing list in April and now sent out this weekend as a second set of patches requesting comments, the Kconfirm tool detects dead code, constant conditions, and invalid ranges among other issues with Linux kernel Kconfig usage. Plus there are extras like checking for dead web links in the help text messages.

This tool has already

Microsoft Releases Azure Linux 3.0.20260506 With Many Security Fixes

Microsoft released Azure Linux 3.0.20260506 on Saturday in order to ship the latest security fixes affecting a wide variety of open-source software projects.

Azure Linux 3.0.20260506-3.0 ships all the latest security fixes of the past few weeks affecting Avahi, GNU Binutils, libssh, Node.js, Ruby, the Linux kernel, Rust, and dozens of others.

Beyond dozens of package updates for security issues,