Merged this weekend ahead of the Linux 6.18-rc4 test kernel release due out later today is the "x86/fixes" for the week. There are a few notable changes on the x86 (x86_64) side of the kernel this week for Linux 6.18...

Open-sourced at the start of the calendar year was Perforator as a continuous profiling tool to find code inefficiencies. Yandex who open-sourced it claimed that it could lead businesses to saving "billions of dollars a year on server infrastructure." It's been a few months since the last feature release but out this weekend is Perforator 0.0.7...

Comme tous les dimanches, nous vous proposons notre suivi des prix des processeurs. Première chose à noter et non des moindres, le Ryzen 7 9800X3D est au moins cher cette semaine, il perd 18 euros et passe à 449 euros en France, en boutique FR. Après, chez AMD assez peu de changement cette semaine. Le 7600X baisse de 7 euros, le 7800X3D fait - 22 euros, le 9700X augmente de 9 euros, le 9900X augmente de 12 euros et enfin le 9950X3D fait + 25 euros. […]

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Et c'est reparti pour une deuxième saison de montage et de watercooling en tout genre. Comme l'année dernière, nous ne parlons pas forcément de mode, mais surtout de beaux montages. Cette année, nous n'en ferons plus qu'un par semaine, le rythme fut parfois délicat à tenir. Comme toujours, n'hésitez pas à envoyer vos montages à Lucas. Ce dimanche, nous vous proposons de découvrir le Project VESA par LiquidHaus : […]

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Millions will set their clocks back an hour tonight for Daylight Saving Time — only to set them forward an hour six months later. But does anyone like doing this, asks Yahoo News: A recent AP-NORC poll found that about half of the American public, 47%, oppose the current daylight saving time system, compared to 40% who neither favor nor oppose the current practice, while 12% favor the current system, which involves most states switching their clocks twice a year. Of those polled, 56% would prefer to have daylight saving time year-round, meaning less light in the morning for a tradeoff of more light in the evening. While 42% of Americans said they would prefer to have standard time year-round, which means more light in the morning and less light in the evening. And 12% of Americans prefer switching between standard time and daylight saving time. Sleep doctors would prefer we switch to standard time permanently. "The U.S. should eliminate seasonal time changes in favor of a national, fixed, year-round time," the American Academy of Sleep Medicine said in a statement published in the Journal of Clinical Sleep Medicine last year. "Current evidence best supports the adoption of year-round standard time, which aligns best with human circadian biology and provides distinct benefits for public health and safety."

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"We've spent the last year rebuilding major components of our system," Cloudflare announced this week, "and we've just slashed the latency of traffic passing through our network for millions of our customers," (There's a 10ms cut in the median time to respond, plus a 25% performance boost as measured by CDN performance tests.) They replaced a 15-year-old system named FL (where they run security and performance features), and "At the same time, we've made our system more secure, and we've reduced the time it takes for us to build and release new products." And yes, Rust was involved: We write a lot of Rust, and we've gotten pretty good at it... We built FL2 in Rust, on Oxy [Cloudflare's Rust-based next generation proxy framework], and built a strict module framework to structure all the logic in FL2... Built in Rust, [Oxy] eliminates entire classes of bugs that plagued our Nginx/LuaJIT-based FL1, like memory safety issues and data races, while delivering C-level performance. At Cloudflare's scale, those guarantees aren't nice-to-haves, they're essential. Every microsecond saved per request translates into tangible improvements in user experience, and every crash or edge case avoided keeps the Internet running smoothly. Rust's strict compile-time guarantees also pair perfectly with FL2's modular architecture, where we enforce clear contracts between product modules and their inputs and outputs... It's a big enough distraction from shipping products to customers to rebuild product logic in Rust. Asking all our teams to maintain two versions of their product logic, and reimplement every change a second time until we finished our migration was too much. So, we implemented a layer in our old NGINX and OpenResty based FL which allowed the new modules to be run. Instead of maintaining a parallel implementation, teams could implement their logic in Rust, and replace their old Lua logic with that, without waiting for the full replacement of the old system. Over 100 engineers worked on FL2 — and there was extensive testing, plus a fallback-to-FL1 procedure. But "We started running customer traffic through FL2 early in 2025, and have been progressively increasing the amount of traffic served throughout the year...." As we described at the start of this post, FL2 is substantially faster than FL1. The biggest reason for this is simply that FL2 performs less work [thanks to filters controlling whether modules need to run]... Another huge reason for better performance is that FL2 is a single codebase, implemented in a performance focussed language. In comparison, FL1 was based on NGINX (which is written in C), combined with LuaJIT (Lua, and C interface layers), and also contained plenty of Rust modules. In FL1, we spent a lot of time and memory converting data from the representation needed by one language, to the representation needed by another. As a result, our internal measures show that FL2 uses less than half the CPU of FL1, and much less than half the memory. That's a huge bonus — we can spend the CPU on delivering more and more features for our customers! Using our own tools and independent benchmarks like CDNPerf, we measured the impact of FL2 as we rolled it out across the network. The results are clear: websites are responding 10 ms faster at the median, a 25% performance boost. FL2 is also more secure by design than FL1. No software system is perfect, but the Rust language brings us huge benefits over LuaJIT. Rust has strong compile-time memory checks and a type system that avoids large classes of errors. Combine that with our rigid module system, and we can make most changes with high confidence... We have long followed a policy that any unexplained crash of our systems needs to be investigated as a high priority. We won't be relaxing that policy, though the main cause of novel crashes in FL2 so far has been due to hardware failure. The massively reduced rates of such crashes will give us time to do a good job of such investigations. We're spending the rest of 2025 completing the migration from FL1 to FL2, and will turn off FL1 in early 2026. We're already seeing the benefits in terms of customer performance and speed of development, and we're looking forward to giving these to all our customers. After that, when everything is modular, in Rust and tested and scaled, we can really start to optimize...! Thanks to long-time Slashdot reader Beeftopia for sharing the article.

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The Wall Street Journal looks at swarm robotics, where no single robot is in charge, robots interact only with nearby robots — and the swarm accomplishes complex tasks through simple interactions. "Researchers say this approach could excel where traditional robots fail, like situations where central control is impractical or impossible due to distance, scale or communication barriers." For instance, a swarm of drones might one day monitor vast areas to detect early-stage wildfires that current monitoring systems sometimes miss... A human operator might set parameters like where to search, but the drones would independently share information like which areas have been searched, adjust search patterns based on wind and other weather data from other drones in the swarm, and converge for more complete coverage of a particular area when one detects smoke. In another potential application, a swarm of robots could make deliveries across wide areas more efficient by alerting each other to changing traffic conditions or redistributing packages among themselves if one breaks down. Robot swarms could also manage agricultural operations in places without reliable internet service. And disaster-response teams see potential for swarms in hurricane and tsunami zones where communication infrastructure has been destroyed. At the microscopic scale, researchers are developing tiny robots that could work together to navigate the human body to deliver medication or clear blockages without surgery... In recent demonstrations, teams of tiny magnetic robots — each about the size of a grain of sand — cleared blockages in artificial blood vessels by forming chains to push through the obstructions. The robots navigate individually through blood vessels to reach a clog, guided by doctors or technicians using magnetic fields to steer them, says researcher J.J. Wie, a professor of organic and nano engineering at Hanyang University in South Korea. When they reach an obstruction, the robots coordinate with each other to team up and break through. Wie's group is developing versions of these robots that biodegrade after use, eliminating the need for surgical removal, and coatings that make the robots compatible with human tissue. And while robots the size of sand grains work for some applications, Wie says that they will need to be shrunk to nano scale to cross biological barriers, such as cell membranes, or bind to specific molecular targets, like surface proteins or receptors on cancer cells. Some researchers are even exploring emergent intelligence — "when simple machines, following only a few local cues, begin to organize and act as if they share a mind...beyond human-designed coordination." Thanks to long-time Slashdot reader fjo3 for sharing the article.

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Steam on Linux use has hit an all-time high! With the Steam Survey results for October 2025 coming out this evening, Steam on Linux has finally cracked the 3% threshold! A few months back Steam on Linux was close to 3% before stumbling a bit but now it's above that elusive threshold. The only time Steam on Linux use was close to the 3% mark was when Steam on Linux initially debuted a decade ago and at that time the overall Steam user-base was much smaller than it is today. Long story short, thanks to the ongoing success of Valve's Steam Deck and other handhelds plus Steam Play (Proton) working out so well, these October numbers are the best yet...

The fourth and final beta of FreeBSD 15 is out today for testing with the official release continuing to align for an early December debut...

All-solid-state batteries (ASSBs) "are widely viewed as the 'holy grail' of EV battery tech," writes Electrek, "promising to double driving range, halve charging times, and reduce costs." Toyota hopes to launch its first production EV powered by the batteries in 2027 or 2028, and Mercedes-Benz and Volkswagen are also testing the technology. But now Samsung SDI is teaming up with BMW and US-based battery company Solid Power for their own effort at commercializing all-solid-state EV batteries "in what's expected to be a trilateral powerhouse." BMW and Solid Power have been working together to develop the next-gen battery tech since 2022... Under the new agreement signed this week, Samsung will supply all-solid-state battery cells. Samsung will use Solid Power's Sulfide-Based Solid Electrolyte solution, while BMW will develop the battery pack and modules. The strategic alliance aims to take the lead in commercializing all-solid-state batteries (ASSBs). Together, they've created a real-world system for producing ASSB cells, pooling their expertise in batteries, automaking, and materials to bring it closer to mass production. Solid Power's electrolyte solution is designed for stability and maximum conductivity. By teaming up with BMW and Samsung SDI, the company said it aims to bring all-solid-state batteries closer to widespread adoption. "By pooling resources, BMW, Samsung SDI, and Solid Power have a real shot..." argues Electrek.

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Debian developer Julian Andres Klode sent out a message on Halloween that may give some Debian Linux users and developers a spook: the APT packaging tool next year will begin requiring a Rust compiler. This will place a hard requirement by Debian Linux on Rust support for all architectures. Debian CPU architectures with ports currently but lacking Rust support will either need to see support worked on or be sunset...

"A nearby galaxy once thought to be dominated by dark matter seems to have a surprise supermassive black hole at its centre," reports New Scientist. Yet scientists "are convinced dark matter is out there," writes Space.com. "The quest to detect it arguably remains both one of the most frustrating and most exhilarating challenges in modern physics." And now they report that the century-old mystery of dark matter — the invisible glue thought to hold galaxies together — "just got a modern clue." Scientists say they may be one step closer to confirming the existence of this elusive material, thanks to new simulations suggesting that a faint glow at the center of the Milky Way could be dark matter's long-sought signature. "It's very hard to actually prove, but it does seem likely," Moorits Muru of the Leibniz Institute for Astrophysics Potsdam in Germany, who led the new study, told Space.com... The findings, show that dark matter near the Milky Way's center might not form a perfect sphere as scientists long thought. Instead, it appears flattened, almost egg-shaped, and that shape closely mirrors the pattern of mysterious gamma rays observed by NASA's Fermi Gamma-ray Space Telescope... Using powerful supercomputers, [the researchers] recreated how the Milky Way formed, including billions of years of violent collisions and mergers with smaller galaxies. Those violent events, the researchers found, left deep "fingerprints" on the way dark matter is distributed in the galactic core.... matching the pattern of gamma-ray emission Fermi has observed, the new study reports... If the excess truly arises from dark matter collisions, it would mark the first indirect evidence that weakly interacting massive particles [WIMPs], a leading dark matter candidate, really exist... "We have run dozens of direct detection experiments around the globe hunting for WIMPS," notes Phys.org, in an article titled "The Empty Search for Dark Matter." We have run dozens of direct detection experiments around the globe hunting for WIMPS — dark matter particles in this particular mass range. And they're not all the same kind of experiments. There are also the scintillators, which use a giant vat of liquefied noble gas, like several tons of xenon. They wait for a dark matter particle to strike the xenon and cause it to scintillate, which is a fancy science word for "sparkle." We see the sparkle; we detect dark matter... They're just one example of a broader class of dark matter candidates, with delightful names like Q-balls, WIMPzillas, and sterile neutrinos. We've tuned our different experiments to capture different mass ranges or interaction strengths to cover as much of that wide dark matter spectrum as possible. We've even tried to manufacture various kinds of dark matter in our particle collider experiments. And we've found nothing.

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Slashdot reader BrianFagioli writes: Password manager 1Password's 2025 Annual Report: The Access-Trust Gap exposes how everyday employees are becoming accidental hackers in the AI era. The company's data shows that 73% of workers are encouraged to use AI tools, yet more than a third admit they do not always follow corporate policies. Many employees are feeding sensitive information into large language models or using unapproved AI apps to get work done, creating what 1Password calls "Shadow AI." At the same time, traditional defenses like single sign-on (SSO) and mobile device management (MDM) are failing to keep pace, leaving gaps in visibility and control. The report warns that corporate security is being undermined from within. More than half of employees have installed software without IT approval, two-thirds still use weak passwords, and 38% have accessed accounts at previous employers. Despite rising enthusiasm for passkeys and passwordless authentication, 1Password says most organizations still depend on outdated systems that were never built for cloud-native, AI-driven work. The result is a growing "Access-Trust Gap" that could allow AI chaos and employee shortcuts to dismantle enterprise security from the inside.

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An anonymous reader shared this report from CNN: [C]iting delays in Starship's development and competitive pressure from China, NASA asked SpaceX and Blue Origin — which holds a separate lunar lander contract with the space agency — to submit plans to expedite development of their respective spacecraft by October 29. Both companies have responded. But the space agency is also asking the broader commercial space industry to detail how they might get the job done more quickly, hinting that NASA leadership is prepared to sideline its current partners. CNN spoke with half a dozen companies about how they plan to respond to NASA's call to action, which the agency will formally issue once the government shutdown ends, according to a source familiar with the matter. One possibility is Lockheed Martin... Notably, as a legacy NASA contractor, the company built the $20.4 billion Orion spacecraft that astronauts will ride when they take off from Earth... Now, Lockheed says it can piece together a two-stage lunar lander that uses spare parts harvested from Orion. The company would make use of Space Shuttle-era OMS-E engines — which are also used on Orion — to serve as the propulsion for an "ascent stage" of the lunar lander, providing the thrust for the vehicle to lift off the moon after a mission is completed. But the vehicle also needs a descent stage to get down to the lunar surface in the first place... Other commercial space companies contacted by CNN — including Firefly Aerospace and Northrop Grumman — said simply that they were "ready to support" NASA in its endeavor to find a faster way to complete the Artemis III mission. They did not confirm whether they would formally respond to the space agency's anticipated request for companies to submit proposals. The more important goal, argue some experts, is to pave the way for a permanent lunar base where astronauts can live and work... [P]erhaps the true winner will be the country that is able to build lasting infrastructure, experts say. "It makes great press fodder to frame this as competition," said one space policy source, who was among several that spoke to CNN on the condition of anonymity to discuss controversial issues. "But this is about the long game and the sustainability."

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An anonymous reader shared this report from NPR: It's known as the "Dueling Dinosaurs" fossil: A triceratops and a tyrannosaur, skeletons entangled, locked in apparent combat right up until the moment of their mutual demise... That discovery in 2006 now appears to have overturned decades of dinosaur dogma about Tyrannosaurus rex, the fearsome giant long thought to be the sole top predator stalking the late Cretaceous. In a paper in the journal Nature, paleontologists Lindsay Zanno and James Napoli conclude that some of the bones from that specimen belong not to a teenage T. rex, but to a fully grown individual of a different tyrannosaur species — Nanotyrannus lancensis.... One of the first of those red flags in the new specimen was the arm bones. They looked completely different than T. rex's puny appendages... "These are powerful arms with large claws, large hands. They were using them for prey capture." Contrast that with T. rex, "an animal that's a mouth on legs." There were additional clues. The animal had fewer tail vertebrae and more teeth than T. rex. Zanno and Napoli considered other lines of evidence. They created 3D models of numerous purported T. rexes against which they compared their specimen. They looked at the growth stages of the cranial nerves and sinuses of close living relatives of dinosaurs, features that were visible in the fossilized skeleton. "But maybe the most important and damning thing that we did was we were able to figure out that our animal is not a juvenile at all," she says. This conclusion was based on slicing through the fossil's limb bones to examine the growth rings. That work demonstrated that this animal was mature and done growing when it died around the age of 20. "That means it's half the size and a tenth of the mass of a full grown Tyrannosaurus rex," says Zanno... In addition, while making models of all those other alleged T. rex skeletons, Zanno says they identified another new species of tyrannosaur, one they're calling Nanotyrannus lethaeus... "It tells us that these end-Cretaceous ecosystems right before the asteroid hit were flourishing," says Zanno. "They had an abundance of different predators. And refutes this idea that dinosaurs were in decline before the asteroid struck."

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Ubuntu "is adopting the memory-safe Rust language," reports ZDNet, citing remarks at this year's Ubuntu Summit from Jon Seager, Canonical's VP of engineering for Ubuntu: . Seager said the engineering team is focused on replacing key system components with Rust-based alternatives to enhance safety and resilience, starting with Ubuntu 25.10. He stressed that resilience and memory safety, not just performance, are the principal drivers: "It's the enhanced resilience and safety that is more easily achieved with Rust ports that are most attractive to me". This move is echoed in Ubuntu's adoption of sudo-rs, the Rust implementation of sudo, with fallback and opt-out mechanisms for users who want to use the old-school sudo command. In addition to sudo-rs, Ubuntu 26.04 will use the Rust-based uutils/coreutils for Linux's default core utilities. This setup includes ls, cp, mv, and dozens of other basic Unix command-line tools. This Rust reimplementation aims for functional parity with GNU coreutils, with improved safety and maintainability. On the desktop front, Ubuntu 26.04 will also bring seamless TPM-backed full disk encryption. If this approach reminds you of Windows BitLocker or MacOS FileVault, it should. That's the idea. In other news, Canonical CEO Mark Shuttleworth said "I'm a believer in the potential of Linux to deliver a desktop that could have wider and universal appeal." (Although he also thinks "the open-source community needs to understand that building desktops for people who aren't engineers is different. We need to understand that the 'simple and just works' is also really important.") Shuttleworth answered questions from Slashdot's readers in 2005 and 2012.

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Slashdot reader joshuark shares this report from SFGate: The mystery object that struck a plane at 36,000 feet is likely not space debris, as some speculated, but rather a Silicon Valley test project gone wrong... WindBorne Systems, a Palo Alto startup that uses atmospheric balloons to collect weather data for AI-based forecast models,has come forward to say that they believe they may be responsible for the object that hit the windshield... "At 6am PT, we sent our preliminary investigation to both NTSB and FAA, and are working with both of them to investigate further," [WindBorne's CEO John Dean posted on social media...] WindBorne said the company has launched more than 4,000 balloons and that it coordinates with the Federal Aviation Administration for every launch. WindBorne "has conducted more than 4,000 launches," the company said in a statement, noting that they've always coordinated those launched with America's Federal Aviation Administration and filed aviation alerts for every launched balloon. Plus "The system is designed to be safe in the event of a midair collision... Our balloon is 2.4 pounds at launch and gets lighter throughout flight." We are working closely with the FAA on this matter. We immediately rolled out changes to minimize time spent between 30,000 and 40,000 feet. These changes are already live with immediate effect. Additionally, we are further accelerating our plans to use live flight data to autonomously avoid planes, even if the planes are at a non-standard altitude. We are also actively working on new hardware designs to further reduce impact force magnitude and concentration.

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Slashdot reader joshuark shares this report from SFGate: The mystery object that struck a plane at 36,000 feet is likely not space debris, as some speculated, but rather a Silicon Valley test project gone wrong... WindBorne Systems, a Palo Alto startup that uses atmospheric balloons to collect weather data for AI-based forecast models,has come forward to say that they believe they may be responsible for the object that hit the windshield... "At 6am PT, we sent our preliminary investigation to both NTSB and FAA, and are working with both of them to investigate further," [WindBorne's CEO John Dean posted on social media...] WindBorne said the company has launched more than 4,000 balloons and that it coordinates with the Federal Aviation Administration for every launch. WindBorne "has conducted more than 4,000 launches," the company said in a statement, noting that they've always coordinated those launched with America's Federal Aviation Administration and filed aviation alerts for every launched balloon. Plus "The system is designed to be safe in the event of a midair collision... Our balloon is 2.4 pounds at launch and gets lighter throughout flight." We are working closely with the FAA on this matter. We immediately rolled out changes to minimize time spent between 30,000 and 40,000 feet. These changes are already live with immediate effect. Additionally, we are further accelerating our plans to use live flight data to autonomously avoid planes, even if the planes are at a non-standard altitude. We are also actively working on new hardware designs to further reduce impact force magnitude and concentration.

Read more of this story at Slashdot.