Jonathan Corbet

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Resistance to Rust abstractions for DMA mapping

2 months ago | lwn.net | Jonathan Corbet

The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank youfor visiting LWN.net! By Jonathan CorbetJanuary 30, 2025 DMA transfers move data directly between RAM and the device of interest,without involving the CPU.
Some things to expect in 2025

Jan 16, 2025 | lwn.net | Jonathan Corbet

This article brought to you by LWN subscribersSubscribers to LWN.net made this article — and everything that surrounds it — possible. If you appreciate our content, please buy a subscription and make the next set of articles possible. By Jonathan CorbetJanuary 2, 2025 not howthe year will actually go. We have to try; it's traditional, after all. Read on for our view of what's coming and how it may play out. The extensible scheduling class (sched-ext) will be a game changer.
The trouble with struct sockaddr's fake flexible array

Nov 28, 2024 | lwn.net | Jonathan Corbet

Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate thiscontent and would like to see more of it, your subscription willhelp to ensure that LWN continues to thrive. Please visitthis page to join up and keep LWN onthe net. By Jonathan CorbetNovember 7, 2024 counted-by work, havebeen made, one of the most difficult cases remains.
On Rust in enterprise kernels

Oct 23, 2024 | lwn.net | Jonathan Corbet

Benefits for LWN subscribersThe primary benefit from subscribing to LWN is helping to keep us publishing, but, beyond that, subscribers get immediate access to all site content and access to a number of extra site features. Please sign up today! By Jonathan CorbetOctober 10, 2024 generally agreed that the Rust experiment wouldcontinue, and that the path was clear for more Rust code to enter thekernel.
The long road to lazy preemption

Oct 18, 2024 | lwn.net | Jonathan Corbet

The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank youfor visiting LWN.net! By Jonathan CorbetOctober 18, 2024 discussionon scheduling led to the concept of "lazy preemption", which couldsimplify scheduling in the kernel while providing better results.
An update on gccrs development

Oct 10, 2024 | lwn.net | Jonathan Corbet

Did you know...? LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. One concern that has often been expressed about the Rust language is thatthere is only one compiler for it. That makes it hard to say what thestandard version of the language is and restricts the architectures thatcan be targeted by Rust code to those that the available compiler supports.
Where do Linux and Rust go from here? A roundtable of kernel developers share their thoughts

Sep 25, 2024 | thetechstreetnow.com | Jonathan Corbet

27 minutes ago zdnet.com Prominent Linux kernel developers gathered to share insights on kernel development's current state and future at a recent roundtable discussion during the Open Source Summit Europe in Vienna.
Committing to Rust in the kernel

Sep 24, 2024 | lwn.net | Jonathan Corbet

The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank youfor visiting LWN.net!The project to enable the writing of kernel code in Rust has been underwayfor several years, and each kernel release includes more Rust code.
A SpamAssassin surprise

Sep 4, 2024 | lwn.net | Jonathan Corbet

By Jonathan CorbetAugust 30, 2024 Back in April, an important anniversary went mostly unremarked: it was afull 30 years since the sending of the still-famous "green-cardspam". Those of us who were recipients of that missive were horrified at the time,but nowhere near as horrified as we would have been had we known what wascoming. Almost overnight, email was transformed from a collaborativeservice to a pipeline that would be constantly abused by ill-meaningactors.
Maximal min() and max()

Aug 8, 2024 | lwn.net | Jonathan Corbet

The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank youfor visiting LWN.net! By Jonathan CorbetAugust 1, 2024 min() and max() — led to some trulypathological, but hidden, behavior where those macros were used.