Open-source News

Scoped User Access In Linux 6.19 To Reduce Speculation Barriers & Its Performance Hit

Phoronix - Wed, 12/03/2025 - 19:29
Merged yesterday to the Linux 6.19 Git codebase was the "core/uaccess" pull that introduces new scoped user-mode access with auto-cleanup functionality. This can reduce the number of speculation barriers encountered when needing to access user-mode memory and thereby avoiding some of the performance penalties incurred by speculation barriers...

AES-GCM Optimizations Land In Linux 6.19 - Benefiting AMD Zen 3, AVX-512 CPUs Too

Phoronix - Wed, 12/03/2025 - 19:14
Google engineer Eric Biggers who is known for his many Linux crypto subsystem performance optimizations has seen his latest pull requests land in Linux 6.19. Notable among them are some AES-GCM optimizations benefiting AMD Zen 3 processors and separately AVX-512 processors also benefit too from this latest round of optimization work...

X.Org Server's xkbcomp Updated For Four Security Issues Dating Back Years

Phoronix - Wed, 12/03/2025 - 18:49
Red Hat's Peter Hutterer announced the release today of xkbcomp 1.5, the CLI utility used for compiling X Keyboard Extension (XBD) keyboard descriptions for the X.Org Server. Driving this new xkbcomp release are fixes for four security issues...

Why Linux Powers Everything From Your Coffee Machine to Mars Rovers

Tecmint - Wed, 12/03/2025 - 14:00
The post Why Linux Powers Everything From Your Coffee Machine to Mars Rovers first appeared on Tecmint: Linux Howtos, Tutorials & Guides .

When most people think about operating systems, they picture Windows laptops or MacBooks, but here’s what’s fascinating: while you’re reading

The post Why Linux Powers Everything From Your Coffee Machine to Mars Rovers first appeared on Tecmint: Linux Howtos, Tutorials & Guides.

Intel LASS, SGX EUPDATESVN & Microcode Staging Features Land In Linux 6.19

Phoronix - Wed, 12/03/2025 - 09:26
In addition to new AMD CPU features being merged today for Linux 6.19, there are also some new Intel CPU features that hit Linux Git today that are worth highlighting...

AMD Zen 6 RAS Preparation, AMD SDCI Features Merged For Linux 6.19

Phoronix - Wed, 12/03/2025 - 05:28
Linus Torvalds just merged another set of pull requests to Git for the in-development Linux 6.19 kernel. With the latest round of merges, there are two separate AMD changes worth highlighting...

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