Rust-Based Project Aims To Provide Modern Thumbnails For Audio/Video Files On GNOME

Since Showtime replaced Totem as the default video player of GNOME, the desktop has lacked thumbnail capabilities for audio and video files. But to address that defect, the Rust-based gst-thumbnailers project has been in development to leverage GStreamer and paired with Rust to provide safe thumbnail generation capabilities for audio and video content…

Live Update Orchestrator “LUO” Merged For Linux 6.19

Google engineers for the past number of months have been working on the Live Update Orchestrator as a new way of applying live Linux kernel updates. The Live Update Orchestrator “LUO” builds atop the Kexec Handover “KHO” functionality already within the kernel. Google has since been deplyoing LUO in their production environments for faster security updates to kernels, especially when involving VMs. LUO is now upstream in Linux 6.19…

[$] Disagreements over post-quantum encryption for TLS

The

Internet Engineering Task Force
(IETF) is the standards body responsible
for the TLS encryption standard — which your browser is using right now
to allow you to read LWN.net. As part of its work to keep TLS secure, the IETF
has been entertaining

proposals
to adopt “post-quantum” cryptography (that is,
cryptography that is not known to be easily broken by a quantum computer) for TLS
version 1.3. Discussion of the proposal has exposed a large disagreement between
participants who worried about weakened security and others who worried about
weakened marketability.

Addressing Linux’s missing PKI infrastructure

Jon Seager, VP of engineering for Canonical, has announced
a plan to develop a universal Public Key Infrastructure tool called
upki:

Earlier this year, LWN featured an excellent article titled
Linux’s missing CRL
infrastructure
“. The article highlighted a number
of key issues surrounding traditional Public Key Infrastructure (PKI),
but critically noted how even the available measures are effectively
ignored by the majority of system-level software on Linux.

One of the motivators for the discussion is that the Online
Certificate Status Protocol (OCSP) will cease to be supported by Let’s
Encrypt. The remaining alternative is to use Certificate Revocation
Lists (CRLs), yet there is little or no support for managing (or even
querying) these lists in most Linux system utilities.

To solve this, I’m happy to share that in partnership with rustls
maintainers Dirkjan Ochtman
and Joe Birr-Pixton, we’re starting the
development of upki: a universal PKI tool. This project initially aims
to close the revocation gap through the combination of a new system
utility and eventual library support for common TLS/SSL libraries such
as OpenSSL, GnuTLS and rustls.

No code is available as of yet, but the announcement indicates that
upki will be available as an opt-in preview for
Ubuntu 26.04 LTS. Thanks to Dirjan Ochtman for the tip.

Intel Arc B580 vs. AMD Radeon RX 9000 vs. NVIDIA RTX 50 Series For Llama.cpp Vulkan Performance

Recently there were Phoronix benchmarks looking at the Intel Battlemage GPU compute performance since last year when the Arc B580 graphics card launched as well as the OpenGL and Vulkan graphics performance for the B580 on Linux since launch. There was much progress on the open-source Intel Linux graphics drivers at large this year but especially for Battlemage. Following that a Phoronix Premium reader asked about seeing some fresh Llama.cpp AI benchmarks with its Vulkan back-end now for the Arc B580 compared to competing AMD and NVIDIA graphics cards. Here are those benchmarks as requested.

Early Benchmarks Of Linux 6.19 Git Raising Some Concerns

While just half-way through the Linux 6.19 merge window, over the weekend I began running some benchmarks of the current Linux 6.19 Git state compared to Linux 6.18 LTS stable. There are some minor performance improvements to note in a few of the tests on the first system I tested but also some regressions at this very early pre-RC1 state of the Linux 6.19 kernel…

Linux I3C Gains “HDR” Support For Faster Data Transfers

I2C in Linux 6.19 brought support for Rust-written I2C drivers. The newer I3C “Improved Inter-Integrated Circuit” interface changes have now been merged and the big feature there is HDR support. Not to be confused with the more common High Dynamic Range acronym usage for HDR, HDR in the I3C context is for the “High Data Rate” mode for facilitating faster data transfers…