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LPI

Databases for AI: Vectors, Embeddings, and Architecture

Everyone who comments on AIβ€”whether machine learning or more contemporary techniques such as LLMsβ€”notes the enormous volumes of data it requires, as well as the radically novel ways in which data is used. Thousands of new data centers are currently ... Read more The post Databases for AI: Vectors, Embeddings, and Architecture appeared first on Linux Professional Institute (LPI).

LWN.net

Support period lengthened for the 6.6, 6.12, and 6.18 kernels

The stated support periods for the 6.6, 6.12, and 6.18 kernels has been extended. The 6.6 kernel will be supported with stable updates through the end of 2027 (for four years of support total), while 6.12 and 6.18 will get updates through the end of 2028, for four and three years of support.

Phoronix

b4's Review TUI With AI Integration Nearing Pre-Alpha Release

The b4 tool used for managing patch workflows to the Linux kernel has been seeing a lot of work recently on b4 review as the text user interface (TUI) to help expedite the patch review process for the Linux kernel. The b4 review TUI has been integrating AI agent code review helpers powered by the likes of Claude Code too for trying to help enhance the efficiency for Linux kernel patch reviews. That b4 review work is quickly approaching a pre-alpha state...

LWN.net

[$] No hardware memory isolation for BPF programs

On February 12, Yeoreum Yun posted a suggestion for an improvement to the security of the kernel's BPF implementation: use memory protection keys to prevent unauthorized access to memory by BPF programs. Yun wanted to put the topic on the list for discussion at the Linux Storage, Filesystem, Memory Management, and BPF Summit in May, but the lack of engagement makes that unlikely. They also have a patch set implementing some of the proposed changes, but has not yet shared that with the mailing list. Yun's proposal does not seem likely to be accepted in its current form, but the kernel has added hardware-based hardening options in the past, sometimes after substantial discussion.

Phoronix

LLVM Clang 22 Compiler Performance Largely Unchanged Over Clang 21 On AMD Zen 5

With yesterday's stable release of the LLVM Clang 22 compiler it didn't take long for Phoronix readers to begin asking about the performance of this half-year feature update to this prominent open-source C/C++ compiler. What I am seeing so far are no big surprises with the performance largely being similar to Clang 21 across various open-source C/C++ workloads in the testing thus far. This initial round of reference benchmark results between LLVM Clang 22, Clang 21, and Clang 20 were done on an AMD EPYC Turin (Zen 5) Linux server.

LWN.net

[$] An effort to secure the Network Time Protocol

The Network Time Protocol (NTP) debuted in 1985; it is a universally used, open specification that is deeply important for all sorts of activities we take for granted. It also, despite a number of efforts, remains stubbornly unsecured. Ruben Nijveld presented work at FOSDEM 2026 to speed adoption of the thus-far largely ignored standard for securing NTP traffic: IETF's RFC-8915 that specifies Network Time Security (NTS) for NTP.

LWN.net

MetaBrainz mourns the loss of Robert Kaye

The MetaBrainz Foundation has announced the unexpected passing of its founder and executive director, Robert Kaye: Robert's vision and leadership shaped MetaBrainz and left a lasting mark on the music industry and open source movement. His contributions were significant and his loss is deeply felt across our global community. The Board is actively overseeing a smooth leadership transition and has measures in place to ensure that MetaBrainz continues to operate without interruption. Further updates will be shared in due course.