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Linux Hardware Reviews, Benchmarks & Open-Source News
Updated: 2 hours 10 min ago

Linux Reworks AMD Zen 1 Divide-By-Zero Mitigation After Original Fix Inadequate

Mon, 08/14/2023 - 18:13
Following last week's AMD Inception vulnerability another AMD Zen CPU bug came to light and that was performing a divide by zero on Zen 1 could end up leaking data with this DIV0 speculation bug. The original workaround was performing a dummy division 0/1 within the #DE exception handler but that's now turned out to be inadequate...

Linux 6.5-rc6 Released With Latest CPU Security Mitigations & Bug Fixes

Mon, 08/14/2023 - 02:43
Linus Torvalds released the Linux 6.5-rc6 kernel a few hours early today after capping off a busy week...

Casefolding For Bcachefs File-System Posted

Sun, 08/13/2023 - 21:06
The Bcachefs file-system continues to work its way toward the mainline kernel while interestingly this weekend a Valve developer posted patches for implementing case-folding (case insensitive) feature support for this open-source file-system...

RADV Ray-Tracing To Become Much Faster With New Driver Code

Sun, 08/13/2023 - 18:45
The Mesa Radeon Vulkan "RADV" driver ray-tracing support is about to become much faster with a pending improvement that is currently undergoing review...

Mold 2.1 Linker Brings LoongArch CPU Support

Sun, 08/13/2023 - 18:32
Last month the Mold 2.0 high-speed linker was released that shifted from AGPL to MIT licensing after their monetization strategy didn't pan out. This weekend the project is out with its Mold 2.1 release as another step forward for this alternative linker to GNU Gold and LLVM LLD...

LibreOffice Lands APNG Export Support

Sun, 08/13/2023 - 18:24
Future LibreOffice releases will finally better handle animated PNG (APNG) files. After initial import support was added back in June, merged this week was initial export support for APNG files...

Glibc log2 Function Up To 69% Faster Thanks To FMA

Sun, 08/13/2023 - 18:08
Intel engineer and open-source compiler expert H.J. Lu has landed a much faster log2() implementation within the GNU C Library (glibc) that makes use of FMA instructions with modern x86_64 CPUs...

AMD FreeSync Panel Replay Ready For Linux 6.6, Next-Gen GPU Enablement Started

Sat, 08/12/2023 - 21:13
AMD submitted more "new stuff" for their AMDGPU and AMDKFD kernel graphics and compute drivers for the upcoming Linux 6.6 kernel cycle...

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck

Sat, 08/12/2023 - 18:27
Last month when the Linux kernel was mitigated for Zenbleed as a CPU vulnerability affecting AMD Zen 2 processors, it turns out the Steam Deck APU was accidentally left without coverage. An x86/urgent pull request sent out today for the Linux 6.5 kernel and for back-porting to current stable Linux kernel releases will extend the Zenbleed mitigation to protect Steam Deck gamers...

Intel Wiring Up DisplayPort Alt Mode 2.1 Support For Linux

Sat, 08/12/2023 - 18:02
Last year the DisplayPort 2.1 specification was published and now Intel's open-source Linux engineers are working on adding support to the kernel for handling of the DisplayPort Alternate Mode 2.1 support for that DP operation over USB Type-C connections...

AMD Working On ACPI PHAT Support For Linux To Expose Health-Related Telemetry

Sat, 08/12/2023 - 17:47
One of the new Linux kernel patch series out of AMD this week is for exposing ACPI PHAT, the Platform Health Assessment Table...

System76 COSMIC Desktop Ironing Out Support For Themes, Application API

Sat, 08/12/2023 - 17:30
While KDE developers are busy working on Plasma 6, System76's software developers are busy working on their new Rust-based "COSMIC" desktop environment. System76 on Friday published a new blog post outlining their efforts in recent weeks...

KDE Apps Now Support QOI Images, Plasma 6 Development Continues

Sat, 08/12/2023 - 17:19
KDE developers continue to be quite busy working on Plasma 6 development and related enhancements to this popular open-source desktop environment...

Initial Benchmarks Of The "NVK" Open-Source NVIDIA Vulkan Driver

Sat, 08/12/2023 - 03:48
With the in-development NVK driver merged for Mesa 23.3 to provide open-source NVIDIA Vulkan API support when paired with the Nouveau kernel driver and the necessary Nouveau kernel driver improvements coming with Linux 6.6 for supporting this driver, Phoronix readers have been eager for some benchmarks... Well, here are some benchmarks on the NVIDIA GeForce RTX 20 and RTX 30 series when comparing the latest NVK+Nouveau code compared to the proprietary NVIDIA Linux graphics driver stack.

Linux 6.4.10 & LTS Kernels Updated With AMD Zen 1 Divide By Zero Bug-Fix

Sat, 08/12/2023 - 00:54
Following the new Linux stable kernels this week to quickly mitigate the Intel Downfall and AMD Inception vulnerabilities, today brings another set of stable point releases. Among the fixes to be picked up since Tuesday is the other AMD fix for the week of a Zen 1 bug that could leak data following a divide by zero operation...

Linux 6.6 To Finish Gutting Wireless USB & UWB

Fri, 08/11/2023 - 23:16
The upcoming Linux 6.6 kernel will finish removing old remnants of Wireless USB support...

Haiku OS Support Upstreamed Into GCC Compiler

Fri, 08/11/2023 - 22:44
Developers of the BeOS-inspired Haiku operating system have long been carrying patches for supporting the GNU Compiler Collection (GCC) on their platform while this week the code was upstreamed for GCC 14...

Intel Meteor Lake Graphics Still Experimental "Force Probe" With Linux 6.6

Fri, 08/11/2023 - 21:54
Sent out today was the drm-intel-gt-next and drm-intel-next pull requests of the latest Intel graphics driver feature code for DRM-Next to then be merged for the upcoming Linux 6.6 cycle. Both pull requests indicate these are the last planned feature updates ahead of Linux 6.6 but what's interesting is that with the latest code upcoming Meteor Lake graphics are still being treated as experimental...

LLVM Clang Now Supports -std=c23

Fri, 08/11/2023 - 19:50
LLVM/Clang developers have been working on C23 language support for some time already but to this point it's only been exposed when using the -std=c2x target or -std=gnu2x for the GNU dialect. However, with C2x having been finalized this summer as C23, the LLVM Clang 18 compiler will now honor the -std=c23 option...

Cloud Hypervisor 34 Brings QCOW2 Support for Backing Files, Paravirtualized Panic Device

Fri, 08/11/2023 - 18:12
Cloud Hypervisor -- the Rust-written open-source VMM that was started by Intel while having evolved into a Linux Foundation project with backing from multiple organizations -- is out with the Cloud-Hypervisor 34 release...

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