Learning PF_RING and netmap

James Bottomley: Paying Maintainers isn’t a Magic Bullet
Over the last few years it’s become popular to suggest that open source maintainers should be paid. There are a couple of stated motivations for this, one being that it would improve the security and reliability of the ecosystem (pioneered by several companies like Tidelift) and the others contending that it would be a solution to the maintainer burnout and […]
Paul E. Mc Kenney: Parallel Programming: September 2022 Update
The v2022.09.25a release of Is Parallel Programming Hard, And, If So, What Can You Do About It? is now available! The double-column version is also available from arXiv.org.This version boasts an expanded index and API index, and also adds a number of improvements, perhaps most notably boldface for the most pertinent pages for a given index entry, courtesy o […]
Matthew Garrett: Handling WebAuthn over remote SSH connections
Being able to SSH into remote machines and do work there is great. Using hardware security tokens for 2FA is also great. But trying to use them both at the same time doesn't work super well, because if you hit a WebAuthn request on the remote machine it doesn't matter how much you mash your token - it's not going to work.But could it?The SSH a […]
Matthew Garrett: Bring Your Own Disaster
After my last post, someone suggested that having employers be able to restrict keys to machines they control is a bad thing. So here's why I think Bring Your Own Device (BYOD) scenarios are bad not only for employers, but also for users.There's obvious mutual appeal to having developers use their own hardware rather than rely on employer-provided […]
Dave Airlie (blogspot): LPC 2022 GPU BOF (user console and cgroups)
At LPC 2022 we had a BoF session for GPUs with two topics.Moving to userspace consoles:Currently most mainline distros still use the kernel console, provided by the VT subsystem. We'd like to move to CONFIG_VT=n as the console and vt subsystem have historically been a source of bugs but are also nasty places for locking etc. It also can be the cause of […]
Dave Airlie (blogspot): LPC 2022 Accelerators BOF outcomes summary
At Linux Plumbers Conference 2022, we held a BoF session around accelerators.This is a summary made from memory and notes taken by John Hubbard.We started with defining categories of accelerator devices.1. single shot data processors, submit one off jobs to a device. (simpler image processors)2. single-user, single task offload devices (ML training devices) […]
Matthew Garrett: git signatures with SSH certificates
Last night I complained that git's SSH signature format didn't support using SSH certificates rather than raw keys, and was swiftly corrected, once again highlighting that the best way to make something happen is to complain about it on the internet in order to trigger the universe to retcon it into existence to make you look like a fool. But anywa […]
Paul E. Mc Kenney: Kangrejos 2022: The Rust for Linux Workshop
UNDER CONSTRUCTIONI had the honor of attending this workshop, however, this is not a full report. Instead, I am reporting on what I learned and how it relates to my So You Want to Rust the Linux Kernel? blog series that I started in 2021, and of which this post is a member. I will leave more complete coverage of a great many interesting sessions to others (f […]
Linux Plumbers Conference: Linux Plumbers Conference Free Live Streams Available
As with previous years, we have a free live stream available. You can find the details here: https://lpc.events/event/16/page/173-watch-live-free
Linux Plumbers Conference: LPC 2022 Open for Last-Minute On-Site Registrations
Against all expectations, we have now worked through the entire waitlist, courtesy of some last-minute cancellations due to late-breaking corporate travel restrictions. We are therefore re-opening general registration. So if you can somehow arrange to be in Dublin on September 12-14 at this late date, please register. Virtual registration never has closed, a […]