#LinuxPlumbers

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide showing some stats on syzbot reporting. It found 105 bugs in patchsets between August and early December. It fails to determine the base tree in 12.5% of cases.

Syzkaller has been fuzzing Linux patchsets since August! It already caught more than 100 bugs before they were merged. At #LinuxPlumbers, Aleksandr Nogikh explained why your patchset may not be covered.

Website: ci.syzbot.org
Slides: lpc.events/event/19/con...
Video: www.youtube.com/watch?v=69Pj...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide showing the future packet path for KubeVirt pods with netkit devices.

After accelerating pod networking with netkit devices, @cilium.io will tackle the challenge of KubeVirt pods. At #LinuxPlumbers, Daniel Borkmann et al. explained what it will look like and the required changes.

Recording: www.youtube.com/watch?v=_Qy4...
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Motivational slide showing a possible concurrency issue with a simple BPF example detected by herd7.

Peilin Ye gave an easy-to-follow introduction to the new BPF_ATOMIC instructions for Load-Acquire and Store-Release in eBPF. Only at #LinuxPlumbers! ;)

Recording: www.youtube.com/watch?v=iF7J...
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide showing the high-level idea with the different steps involved, from the regex string to the BPF maps and programs.

Justin Ngai presented a BPF regex engine to be able to match file paths and command lines in the kernel. He explained how it works, its limitations, and some of the challenges involved. #LinuxPlumbers

Recording: youtu.be/n0xMU3XkXYM
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide listing the advantages and limitations of using this BPF-based DNS server to resolve external queries. It includes performance numbers showing it improves the throughput and latency.

Related to the previous #LinuxPlumbers talk, Raman Shukhau implemented and presented a small DNS server in eBPF!

Recording: www.youtube.com/watch?v=di2R...
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide showing the overal architecture of parsing DNS over TCP for Cilium using eBPF.

Cilium can enforce network policies based on FQDNs using a userspace proxy. At #LinuxPlumbers, @hemanthmalla.bsky.social proposed to move this to the kernel by implementing DNS parsing in #eBPF!

Recording: www.youtube.com/watch?v=ecQo...
Demo: youtu.be/0qmQ1bTBLHo
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Screenshot of the bpfvv UI showing the C code, the corresponding BPF bytecode, and the current state of registers and stack slots.

Work on the BPF Verifier Visualizer (bpfvv) is continuing! Ihor Solodrai and Jordan Rome presented the many new features at #LinuxPlumbers.

Recording: www.youtube.com/watch?v=-_P1...
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

2 months ago

Slide showing how the trampoline call improves on the basic uprobes hooking using the new uretprobe(2) syscall.

After a great recap of how uprobes work, Jiri Olsa presented recent optimizations and discussed how uprobes could overwrite userspace functions. As usual with Jiri, the slides are minimalist but effective #LinuxPlumbers

Recording: www.youtube.com/watch?v=sydT...
Slides: lpc.events/event/19/con...

Paul Chaignon

@pchaigno.bsky.social

3 months ago

Slide showing the $225k grant received by the eBPF Foundation from the Alpha-Omega project and what it will be used for. The slide mentions enabling KASAN, security reviews of the main JIT compilers, checking the verifier-to-JIT integrity, and an assessment of unprivileged surfaces.

At #LinuxPlumbers, @breakawaybilly.bsky.social presented what the eBPF Foundation is doing, where its funds are going, and asked the attendees what should be next.

Recording: www.youtube.com/live/ZLRngpd...
Slides: lpc.events/event/19/con...

Igalia

@igalia.com

3 months ago

Collage of Igalians on the stage of Linux Plumbers Conference 2025. André Almeida, Changwoo Min, Gavin Guo, Guilherme Piccoli, Maurício Faria de Oliveira and Ricardo Cañuelo together gave eight talks in multiple micro-conferences: Linux System Monitoring and Observability, Kernel Testing and Dependability, sched_ext: the BPF extensible scheduler class and Gaming on Linux.

What a week! 😅 #LinuxPlumbers Conf 2025 is officially over, and what an edition it was.

We went all out this year, covering everything from Linux System Observability and Kernel Testing to Gaming and sched_ext!

Thanks to the organizers and everyone who joined our eight talks. See you next year! 👋🐧

Collabora

@collabora.com

3 months ago

Tyr demo at Linux Plumbers 2025

Rust in Linux is here to stay — and we’re showcasing it at #LinuxPlumbers in Tokyo! Take a break between sessions and race karts on #Tyr, the new Rust DRM driver for Arm Mali GPUs! 🎉

#rustlang #linux #opensource

Igalia

@igalia.com

3 months ago

Igalia at Open Source Summit Japan & Linux Plumbers Conference 2025 | Igalia Igalia is an open source consultancy specialised in the development of innovative projects and solutions. Our engineers have expertise in a wide range of technological areas, including browsers and cl...

We're in our way to Japan for a week full of knowledge sharing and discussions on cutting-edge topics at the #OSSumit Japan and the #LinuxPlumbers Conference 2025. ✈️ 🗾

You can read more about our participation in these conferences at: www.igalia.com/2025/12/05/I...
(🧵 1/3)

Collabora

@collabora.com

3 months ago

Pushing the kernel forward at Linux Plumbers 2025 Catch us in Tokyo for the Linux Plumbers Conference for our talks on the Linux kernel!

Collabora is headed to Tokyo for the Linux Plumbers Conference!

Join us for our talks exploring stability for Rockchip boards, the latest #Tyr Rust-based GPU, and more: col.la/plumbers25

#LinuxPlumbers #Rustlang #OpenSource

橘 有栖 (Arisu Tachibana)

@arisu-gyaru.bsky.social

4 months ago

おっしゃ〜！🎉
Kernel Testing & Dependability MC のスケジュール、ついにセット完了。
まだ非公開だけど手応えバチバチ。
公開になったら速攻で流すね〜🫰

#LPC2025 #LinuxPlumbers #KernelTesting #Dependability

Andrea Righi

@arighi.bsky.social

7 months ago

Linux Plumbers Conference 2025 The Linux Plumbers Conference (LPC) is a developer conference for the open source community. The LPC brings together the top developers working on the plumbing of Linux - kernel subsys...

I'm excited to announce that the sched_ext microconference has been accepted for LPC 2025 in Tokyo - and the Call for Proposals is now open! #linuxplumbers

Dec 11–13 | Tokyo, Japan
Submit your topic: lpc.events/event/19/abs...
Details: lore.kernel.org/all/aH9NIL4C...

Igalia

@igalia.com

1 year ago

Collection of six pictures taken during 2024 OSSummit Europe, LPC and LF Europe Member Summit in Vienna, Austria. From left to right, top to bottom order: 1. Audience of Changwoo Min's talk at LPC 2024, sched_ext MC. 2. Christian Gmeiner on the stage for Embedded Linux Conference in OSSummit Europe 2024. 3. Manuel Rego presenting at LF Europe Member Summit 2024. 4. Visitors of Igalia's booth at OSSummit Europe 2024. 5. André Almeida on the stage in the Graphics & DRM MC of LPC 2024. 6. Thadeu Cascardo presenting at LPC 2024 in the Real-time MC.

And so we end a week of intense knowledge exchange! Thanks everyone who attended our talks and visited our booth at #OSSummit EU, #LinuxPlumbers and #LFEuropeMemberSummit. Big thank you to the sponsors and to the @linuxfoundation.org for making these events possible. 👏 #OpenSource

Igalia

@igalia.com

1 year ago

Linux Plumbers Conference 2024 18-20 September, Vienna, Austria. The Linux Plumbers Conference is the premier event for developers working at all levels of the plumbing layer and beyond.

Day 2 of #LinuxPlumbers 2024!

At 17:46 CEST, our colleague Thadeu Cascardo will talk about "Using DL servers for FIFO tasks starvation avoidance" at the Real-time MC (lpc.events/event/18/con...)

Be sure to watch!

Igalia

@igalia.com

1 year ago

Linux Plumbers Conference 2024 18-20 September, Vienna, Austria. The Linux Plumbers Conference is the premier event for developers working at all levels of the plumbing layer and beyond.

We continue in Vienna for #LinuxPlumbers 2024! Today two Igalia colleagues will be on stage!
This morning at 10:40 CEST, Changwoo Ming will be in the Sched_ext MC presenting his work on "Using sched_ext to improve frame rates on the SteamDeck" (lpc.events/event/18/con...)

Igalia

@igalia.com

1 year ago

Linux Plumbers Conference 2024 18-20 September, Vienna, Austria. The Linux Plumbers Conference is the premier event for developers working at all levels of the plumbing layer and beyond.

Sept 19th at 17:46 CEST:
Thadeu Cascardo talks about "Using DL servers for FIFO tasks starvation avoidance at the Real-time MC". (lpc.events/event/18/con...)

Of course, we will be available throughout the #LinuxPlumbers conference for hallway conversations and kernel discussions 😄

Igalia

@igalia.com

1 year ago

Linux Plumbers Conference 2024 18-20 September, Vienna, Austria. The Linux Plumbers Conference is the premier event for developers working at all levels of the plumbing layer and beyond.

From Sept 18th to 20th, we continue in Vienna for the #LinuxPlumbers 2024!

Sept 18th - 10:40 CEST:
Changwoo Ming presents his work on "Using sched_ext to improve frame rates on the SteamDeck" at the Sched_ext MC. (lpc.events/event/18/con...)

🧵

Igalia

@igalia.com

1 year ago

Igalia @ OSS/EU+LPC 2024 Stabilizing Chromium's Wayland support: Implementing and testing fallback tab dragging → Max Ihlenfeldt Mesa3D Unveiled: From glDrawArrays(…) to GPU Magic → Christian Gmeiner Using sched_ext to improve frame rates on the SteamDeck → Changwoo Ming Dealing with GPU resets → André Almeida Using DL servers for FIFO tasks starvation avoidance → Thadeu Cascardo

Next week, @igalia.bsky.social will participate in #OSSumit EU and #LinuxPlumbers Conference 2024.
Mark your calendars and don't miss our talks!

👇🧵

SJ

@sj00.bsky.social

1 year ago

We are looking for DAMON recipes that I could share on upcoming OSSummit EU, or (hopefully) DAMON microconf at LPC'25: lore.kernel.org/202407242221...
#linux #kernel #damon #ossummit #linuxplumbers

SJ

@sj00.bsky.social

2 years ago

The video for my kernel summit talk about DAMON's current status and future plans is now available from the livestream record: www.youtube.com/live/VxaAorw...

#linux #kernel #damon #LinuxPlumbers #ksummit

Cilium

@cilium.io

7 years ago

We've had an amazing #LinuxPlumbers conference with so many great talks, use cases and discussions on BPF and XDP, thanks everyone! All slides and papers are now online and can be found here: BPF micro-conference: http://vger.kernel.org/lpc-bpf.html Networking track:...

Cilium

@cilium.io

7 years ago

Crash course on DOM trees and Control Flow Graphs from John Fastabend (@cilium_john) for bounded loops in BPF #LinuxPlumbers

Cilium

@cilium.io

7 years ago

Nick Viljoen from Netronome explaining ongoing BPF / XDP offload work for a fully programmable switch for multi-host NICs #LinuxPlumbers vger.kernel.org/lpc-networking2018.html

Cilium

@cilium.io

7 years ago

Keynote by the networking maintainer David S. Miller on skb list conversion in the networking stack, enabling GRO performance improvements as a result, and future improvements on resource sharing for network namespaces. #LinuxPlumbers...

Cilium

@cilium.io

7 years ago

Nikita V. Shirokov from Facebook on running XDP in production for 1.5 years, comparing IPVS under flood with CPUs spinning on 100% versus their XDP rollout today with close to 0% and other lessons learned. #LinuxPlumbers vger.kernel.org/lpc-networking2018.html

Cilium

@cilium.io

7 years ago

Since May 2017 *every* packet going to http://facebook.com is processed by BPF / XDP ! #LinuxPlumbers

Cilium

@cilium.io

7 years ago

William Tu from VMWare on converting the Open vSwitch networking data path to make use of the power of BPF and XDP #LinuxPlumbers vger.kernel.org/lpc-networking2018.html