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Meta Uncovers RDSEED Architectural Issue In AMD Zen 5 CPUs

Over the years we have seen various workarounds like disabling RDSEED for select AMD CPUs due to hardware bugs and early on in the Zen days were also some RdRand issues due to different problems. It turns out the newest AMD EPYC 5th Gen "Turin" processors have a new RDSEED issue...
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Linux Affected By Decade Old Bug In Software RAID Around O_DIRECT Usage

A Phoronix reader pointed out a bug report from 2015 now getting renewed interest... Linux software RAID via MD RAID, DRBD, LVM RAID, and similar software-based solutions can be broken from user-space around O_DIRECT usage. The issue is that these RAID arrays can be put silently into an inconsistent state across disks...
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An Early Look At Linux 6.18 Performance With Intel Xeon 6 Granite Rapids

With Linux 6.18 now past the merge window and many new features and changes introduced (https://www.phoronix.com/review/linux-618-features), I have begun testing out this kernel on various servers, desktops, and laptops at Phoronix. Linux 6.18 is quite important with expected to become this year's LTS kernel version upon its stable debut in December. Up today is a first look at Linux 6.17 vs. 6.18-rc1 performance using Intel Xeon 6 Granite Rapids server performance.
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Proposed Patches Make Upstream Linux Kernel Usable For The OpenWrt One Router

Announced nearly one year ago was the OpenWrt One as a router/AP that is "hacker-friendly" and open-source. The OpenWrt One is powered by a Filogic 820 SoC and features WiFi 6. This official OpenWrt device is manufactured by Banana Pi. While there is downstream open-source code available for customizing the OpenWrt One to your heart's content, the upstream Linux kernel support to date hasn't been full-featured...
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Mesa Gallium3D Driver Merged For Arm Ethos NPUs

Arm has been working on an open-source Linux kernel accelerator "accel" driver for their Ethos NPUs. That kernel driver continues being revised and under review for inclusion into a future mainline Linux kernel release. Already though a Gallium3D driver for Mesa has been merged for leveraging the Ethos NPU...
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Valve Developer Contributes Open-Source Driver Fixes For 12 Year Old Hawaii GPUs

Valve's open-source Linux graphics team continues carrying out great feats from getting NVIDIA DLSS working on the open-source NVK driver to enhancing Linux GPU driver support for hardware long forgotten about by the hardware vendors. The latest improvement from Valve's stellar group of open-source contributors are some fixes that benefit old Radeon Rx 200 series graphics cards that are more than one decade old...
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Mesa 25.2.5 Released With Very Important Intel Driver Fix

Mesa 25.2.5 is out today as the newest bi-weekly point release for these open-source OpenGL and Vulkan drivers. Particularly if you are on Intel graphics of Battlemage or Lunar Lake and potentially older, Mesa 25.2.5 contains a very important bug fix for various rendering issues and potential game hangs/crashes...
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AMD EPYC 9005 Brings Incredible Performance To The Cloud With Amazon M8a Benchmarks

Last week Amazon/AWS announced the new EC2 M8a instances as their latest-generation, general-purpose compute instances now powered by AMD EPYC 9005 "Turin" processors. Amazon announced the M8a as having up to 30% higher performance and up to 19% better price performance over M7a. With my testing of both at 32 vCPUs, the new AMD EPYC Turin instance provided 1.59x the performance over the prior-generation EPYC Genoa instance!
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