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LWN.net

[$] Modernizing swapping: virtual swap spaces

The kernel's unloved but performance-critical swapping subsystem has been undergoing multiple rounds of improvement in recent times. Recent articles have described the addition of the swap table as a new way of representing the state of the swap cache, and the removal of the swap map as the way of tracking swap space. Work in this area is not done, though; this series from Nhat Pham addresses a number of swap-related problems by replacing the new swap table structures with a single, virtual swap space.

LWN.net

openSUSE governance proposal advances

Douglas DeMaio has announced that Jeff Mahoney's new governance proposal for openSUSE, which was published in January, is moving forward. The new structure would have three governance bodies: a new technical steering committee (TSC), a community and marketing committee (CMC), as well as the existing openSUSE board. The discussions during the meeting proposed that the Technical Steering Committee should begin with five members with a chair elected by the committee. The group would establish clear processes for reviewing and approving technical changes, drawing inspiration from Fedora's FESCo model. Decisions for the TSC would use a voting system of +1 to approve, 0 for neutral, or -1 to block. A proposal passes without objection. A -1 vote would require a dedicated meeting, where a majority of attendees would decide the outcome. Objections must include a clear, documented rationale. Discussions related to the Community and Marketing Committee would focus on outreach, advocacy, and commu

LWN.net

Security updates for Thursday

Security updates have been issued by AlmaLinux (edk2, glibc, gnupg2, golang, grafana, nodejs:24, and php), Debian (gimp and kernel), Fedora (fvwm3), Mageia (microcode and vim), Oracle (edk2, glibc, kernel, nodejs:24, and php), Red Hat (python-s3transfer), SUSE (abseil-cpp, avahi, azure-cli-core, fontforge, go1.24, go1.25, golang-github-prometheus-prometheus, libpcap, libsoup2, libxml2-16, mupdf, nodejs22, openCryptoki, openjpeg2, patch, python-aiohttp, python-Brotli, python-pip, python311-asgiref, rust1.93, and traefik), and Ubuntu (inetutils, libssh, linux-gcp, linux-gke, linux-hwe-6.8, linux-lowlatency-hwe-6.8, linux-intel-iotg-5.15, linux-xilinx-zynqmp, linux-lowlatency, linux-nvidia-lowlatency, and trafficserver).

Phoronix

AI Helped Uncover A "50-80x Improvement" For Linux's IO_uring

Linux block maintainer and IO_uring lead developer Jens Axboe recently was debugging some slowdowns in the AHCI/SCSI code with IO_uring usage. When turning to Claude AI to help in sorting through the issue, patches were devised that can deliver up to a "literally yield a 50-80x improvement on the io_uring side for idle systems." The code is on its way to the Linux kernel...

Phoronix

Gigabyte MZ33-AR1: A Uniquely Positioned AMD EPYC 9005 Motherboard For Open-Source Firmware

The Gigabyte MZ33-AR1 is a single socket AMD EPYC 9004/9005 E-ATX server motherboard for those wanting up to 24 RDIMMs, dual 10 Gigabit LAN, and plenty of storage potential via six MCIO connectors and four PCIe Gen5 x16 slots. Beyond offering nice capabilities for this modern AMD EPYC server motherboard at a ~$700 USD price point, it's uniquely positioned for an open-source firmware future thanks to ongoing work around AMD openSIL and hopefully followed by OpenBMC.