Linux Plumbers Conference 2025

Session

Birds of a Feather (BoF)

Not scheduled

136. Kernel Sanitizers Office Hours

Marco Elver (Google)

The Linux kernel has numerous tools to detect bugs, among them a family of dynamic program analysis called "sanitizers": Kernel Address Sanitizer (KASAN), Kernel Memory Sanitizer (KMSAN), Kernel Concurrency Sanitizer (KCSAN), and the Undefined Behaviour Sanitizer (UBSAN).

Knowing when to apply which sanitizer in the kernel development process may not always be obvious: each sanitizer is...

137. Syzbot BoF: Open Discussion

Aleksandr Nogikh (Google)

[Syzbot][1] is a continuous kernel fuzzing system that automatically uncovers and reports hundreds of Linux kernel findings each quarter.

The BoF session aims to facilitate open dialogue between the syzbot engineers and the kernel developers who receive the reports. We'll discuss what's working well, where more attention is needed, and how we can improve.

We'll start by highlighting the...

19. ML applications in Linux kernel

Viacheslav Dubeyko (IBM)

(1) A description of the overall topic

The number of areas of Machine Learning (ML) approaches application is growing with every day. There are already research works and industry efforts to employ ML approaches for configuration and optimization of Linux kernel. The using of ML approaches in Linux kernel is inevitable step. But there are multiple unanswered questions how ML can be used in...

244. Towards Real-Time NVMe Monitoring (nvme-top)

Nilay Shroff (IBM)

Monitoring NVMe devices and paths in production is currently limited to static snapshots via nvme-cli. While sufficient for basic inspection, this model falls short in NVMe-oF (fabrics) deployments, where path conditions can change dynamically due to fluctuating network latency, congestion, or link failures. Administrators troubleshooting fabric multipath environments often need continuous...

41. Microconference for resctrl

Mr Fenghua Yu (Nvidia)

resctrl provides a Linux infrastructure to allocate and monitor shared memory and cache resources for higher performance and better QoS. It was first introduced into the kernel with X86 Intel Resource Director Technology (RDT). Later resctrl accepted AMD QoS. Over years, resctrl has been widely adopted by CSPs and client customers. It's on-going effort for resctrl to accept new RDT and AMD...

44. ARM Laptop BoF

Stefan Schmidt, Vinod Koul

Laptops with ARM processors have become more common over the recent years. Starting with Apple Silicon and, more recently, X Elite/Plus laptops.

While a solid basic support for many of them exists, the user experience is still lacking and in-kernel as well as userspace support has major gaps compared to a X86_64 system.

Topics we want to to address and discuss in this BoF are:

-...

255. Linux CVE workgroup

Damiano Melotti (Google)

After last year's BoF on Linux CVEs, several organizations have gathered together to form a workgroup, aiming at sharing CVE assessments to reduce the amount of toil of isolated triaging (https://github.com/cloud-lts/linux-cve-analysis). In this session we would like to present the progress we made so far, going over the current challenges and gather inputs from the community. This is also the...

42. Nova GPU Microconference

Mr Alexandre Courbot (NVIDIA), Danilo Krummrich (Red Hat), David Airlie (Red Hat), Joel Fernandes (NVIDIA), Mr John Hubbard (NVIDIA)

This microconference will center on Nova, the upstream Rust-based kernel driver for NVIDIA GPUs.

Discussion topics will include the design and evolution of the firmware API exposed by the GPU System Processor (GSP), user-space submission interfaces and compute APIs, and interactions with the core kernel (device / driver APIs; locking and lifetimes; memory management APIs). NVIDIA engineers...

102. Kernel TEE subsystem BoF

Jens Wiklander, Sumit Garg

A Trusted Execution Environment (TEE) is an isolated execution environment running alongside the rich operating system. It provides the capability to isolate security-critical or trusted code and corresponding resources like memory, devices, etc. The isolation is backed by hardware security features such as Arm TrustZone, AMD Secure Processor, RISC-V TEE, etc.

This BoF will provide a...

81. Hardware in the loop pipelines for testing - for everyone!

Mr Vipul Gupta

A space for folks looking for solutions to achieve the missing e2e test coverage for their Linux distributions. A Hardware in The Loop (HiTL) pipeline that can test changes directly on the hardware and provide instant feedback to any CI/CD loop. The system I intend to present can:

Run tests on actual hardware DUTs (Device Under Test)
Controlled from the outside using a device/jig running...

13. KDLP: Expanding the Linux Kernel Talent Pipeline

Denis Aleksandrov (Red Hat Associate), Mr Rado Vrbovksy (Red Hat Associate)

Abstract

The Kernel Development Learning Pipeline (KDLP) project has grown significantly since its inception, successfully addressing the critical shortage of qualified entry-level kernel engineers. This talk will provide a quick background on KDLP, showcase its substantial growth, and outline future plans, including the creation of an open, community-driven textbook and resources for...

203. 32bit and-or noMMU Linux BoF

"Ruinland" ChuanTzu Tsai (Andes Technology), Mr D.Jeff Dionne (Core Semiconductor), Geert Uytterhoeven (Glider bv), Dr John Paul Adrian Glaubitz (FU Berlin), Rob Landley (ToyBox)

Attending : Geert (m68k arch maintainer), D. Jeff Dionne (Coresemi), Rob Landley (ToyBox), John Paul Adrian Glaubitz (SuperH), Ruinland (AndesTech)

It's like the Sword of Damocles every so often, people push to deprecate support for 32-bit architectures, with or without an MMU.

This year, influential voices are saying it again. Yet developers are still manufacturing, working on, and...