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Racing karts on a Rust GPU kernel driver (Collabora blog)

lwn.net - 금, 2025/11/21 - 1:06오전

In July, Collabora announced the Rust-based Tyr GPU driver for Arm Mali GPUs. Daniel Almeida has posted an update on progress with a prototype of the driver running on a Rock 5B board with the Rockchip RK3588 system-on-chip:

The Tyr prototype has progressed from basic GPU job execution to running GNOME, Weston, and full-screen 3D games like SuperTuxKart, demonstrating a functional, high-performance Rust driver that matches C-driver performance and paves the way for eventual upstream integration! [...]

Tyr is not ready to be used as a daily-driver, and it will still take time to replicate this upstream, although it is now clear that we will surely get there. And as a mere prototype, it has a lot of shortcuts that we would not have in an upstream version, even though it can run on top of an unmodified (i.e., upstream) version of Mesa.

That said, this prototype can serve as an experimental driver and as a testbed for all the Rust abstraction work taking place upstream. It will let us experiment with different design decisions and gather data on what truly contributes to the project's objective.

There is also a video on YouTube of the prototype in action.

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American Kids Can't Do Math Anymore

Slashdot - 금, 2025/11/21 - 1:03오전
An anonymous reader shares a report: For the past several years, America has been using its young people as lab rats in a sweeping, if not exactly thought-out, education experiment. Schools across the country have been lowering standards and removing penalties for failure. The results are coming into focus. Five years ago, about 30 incoming freshmen at UC San Diego arrived with math skills below high-school level. Now, according to a recent report from UC San Diego faculty and administrators, that number is more than 900 -- and most of those students don't fully meet middle-school math standards. Many students struggle with fractions and simple algebra problems. Last year, the university, which admits fewer than 30 percent of undergraduate applicants, launched a remedial-math course that focuses entirely on concepts taught in elementary and middle school. (According to the report, more than 60 percent of students who took the previous version of the course couldn't divide a fraction by two.) One of the course's tutors noted that students faced more issues with "logical thinking" than with math facts per se. They didn't know how to begin solving word problems. The university's problems are extreme, but they are not unique. Over the past five years, all of the other University of California campuses, including UC Berkeley and UCLA, have seen the number of first-years who are unprepared for precalculus double or triple. George Mason University, in Virginia, revamped its remedial-math summer program in 2023 after students began arriving at their calculus course unable to do algebra, the math-department chair, Maria Emelianenko, told me. "We call it quantitative literacy, just knowing which fraction is larger or smaller, that the slope is positive when it is going up," Janine Wilson, the chair of the undergraduate economics program at UC Davis, told me. "Things like that are just kind of in our bones when we are college ready. We are just seeing many folks without that capability." Part of what's happening here is that as more students choose STEM majors, more of them are being funneled into introductory math courses during their freshman year. But the national trend is very clear: America's students are getting much worse at math. The decline started about a decade ago and sharply accelerated during the coronavirus pandemic. The average eighth grader's math skills, which rose steadily from 1990 to 2013, are now a full school year behind where they were in 2013, according to the National Assessment of Educational Progress, the gold standard for tracking academic achievement. Students in the bottom tenth percentile have fallen even further behind. Only the top 10 percent have recovered to 2013 levels.

Read more of this story at Slashdot.

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[$] BPF and io_uring, two different ways

lwn.net - 금, 2025/11/21 - 12:39오전
BPF allows programs uploaded from user space to be run, safely, within the kernel. The io_uring subsystem, too, can be thought of as a way of loading programs in the kernel, though the programs in question are mostly a sequence of I/O-related system calls. It has sometimes seemed inevitable that io_uring would, like many other parts of the kernel, gain BPF capabilities as a way of providing more flexibility to user space. That has not yet happened, but there are currently two patches sets under consideration that take different approaches to the problem.
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Verizon Cutting More Than 13,000 Jobs As It Restructures

Slashdot - 금, 2025/11/21 - 12:20오전
An anonymous reader writes: U.S. wireless carrier Verizon said Thursday it will cut more than 13,000 jobs in its largest single layoff as it works to shrink costs and restructure operations. Verizon also said it plans to convert 179 corporate-owned retail stores into franchised operations and close one store. Verizon's new CEO, Dan Schulman, said in a note to employees the company would reduce its workforce by more than 13,000 employees across the organization, and significantly reduce outsourced and other outside labor expenses. Related: Delayed September report shows U.S. added 119,000 jobs, more than expected; unemployment rate at 4.4%

Read more of this story at Slashdot.

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Microsoft Exec Asks: Why Aren't More People Impressed With AI?

Slashdot - 목, 2025/11/20 - 11:40오후
An anonymous reader shares a report: A Microsoft executive is questioning why more people aren't impressed with AI, a week after the company touted the evolution of Windows into an "agentic OS," which immediately triggered backlash. "Jeez there so many cynics! It cracks me up when I hear people call AI underwhelming," tweeted Mustafa Suleyman, the CEO for Microsoft's AI group. Suleyman added that he grew up playing the old-school 2D Snake game on a Nokia phone. "The fact that people are unimpressed that we can have a fluent conversation with a super smart AI that can generate any image/video is mindblowing to me," he wrote.

Read more of this story at Slashdot.

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Security updates for Thursday

lwn.net - 목, 2025/11/20 - 11:11오후
Security updates have been issued by AlmaLinux (bind, bind9.18, container-tools:rhel8, expat, grub2, haproxy, idm:DL1, kernel, kernel-rt, lasso, libsoup, libssh, libtiff, pcs, podman, python-kdcproxy, qt5-qt3d, redis, redis:7, runc, shadow-utils, sqlite, squid, vim, webkit2gtk3, xorg-x11-server, xorg-x11-server-Xwayland, and zziplib), Debian (chromium), Oracle (lasso and postgresql), SUSE (erlang27, ghostscript, grub2, kernel, libIex-3_4-33, python312, and sbctl), and Ubuntu (linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp, linux-aws-6.8, linux-fips, linux-aws-fips, linux-gcp-fips, linux-oracle, and mysql-8.0, mysql-8.4).
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Who is OpenAI's Auditor?

Slashdot - 목, 2025/11/20 - 11:01오후
OpenAI won't say who audits its books. The company, which projects to hit an ARR of $20 billion this year and is valued at $500 billion, has committed to spending about $1.4 trillion on data centers over the next decade. It accounts for roughly two-thirds of unfulfilled contracts at Oracle and two-fifths at CoreWeave. Microsoft alone holds around $375 billion in unfulfilled contracts with OpenAI. Reuters reported the company may target a $1 trillion valuation for a potential IPO in coming years. Most companies at this scale use one of the Big Four accounting firms: Deloitte, EY, KPMG or PwC. OpenAI declined to comment to Financial Times. A person close to the organization told the publication the company has "an industry standard audit with one of the Big Four firms." The company's latest Form 990 filing lists Fontanello, Duffield, & Otake -- a small San Francisco accountancy firm -- as the paid preparer. The form does say an independent accountant audited the statements. Michael Burry, last night: "Can anyone name [OpenAI's] auditor?"

Read more of this story at Slashdot.

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White House Prepares Executive Order To Block State AI Laws

Slashdot - 목, 2025/11/20 - 10:00오후
An anonymous reader quotes a report from Politico: The White House is preparing to issue an executive order as soon as Friday that tells the Department of Justice and other federal agencies to prevent states from regulating artificial intelligence, according to four people familiar with the matter and a leaked draft of the order obtained by POLITICO. The draft document, confirmed as authentic by three people familiar with the matter, would create an "AI Litigation Task Force" at the DOJ whose "sole responsibility" would be to challenge state AI laws. Government lawyers would be directed to challenge state laws on the grounds that they unconstitutionally regulate interstate commerce, are preempted by existing federal regulations or otherwise at the attorney general's discretion. The task force would consult with administration officials, including the special adviser for AI and crypto -- a role currently occupied by tech investor David Sacks. The executive order, in the draft obtained by POLITICO, would also empower Commerce Secretary Howard Lutnick to publish a review of "onerous" state AI laws within 90 days and restrict federal broadband funds to states whose AI laws are found to be objectionable. It would direct the Federal Trade Commission to investigate whether state AI laws that "require alterations to the truthful outputs of AI models" are blocked by the FTC Act. And it would order the Federal Communications Commission to begin work on a reporting and disclosure standard for AI models that would preempt conflicting state laws.

Read more of this story at Slashdot.

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Proctorio Settles Curious Lawsuit With Librarian Who Shared Public YouTube Videos

Slashdot - 목, 2025/11/20 - 7:00오후
Canadian librarian Ian Linkletter has ended a five-year legal battle with ed-tech firm Proctorio after being sued for sharing public YouTube help videos that exposed how the company's remote-proctoring AI works. Ars Technica reports: ... Together, the videos, the help center screenshot, and another screenshot showing course material describing how Proctorio works were enough for Proctorio to take Linkletter to court. The ed tech company promptly filed a lawsuit and obtained a temporary injunction by spuriously claiming that Linkletter shared private YouTube videos containing confidential information. Because the YouTube videos -- which were public but "unlisted" when Linkletter shared them -- had been removed, Linkletter did not have to delete the seven tweets that initially caught Proctorio's attention, but the injunction required that he remove two tweets, including the screenshots. In the five years since, the legal fight dragged on, with no end in sight until last week, as Canadian courts tangled with copyright allegations that tested a recently passed law intended to shield Canadian rights to free expression, the Protection of Public Participation Act. To fund his defense, Linkletter said in a blog announcing the settlement that he invested his life savings "ten times over." Additionally, about 900 GoFundMe supporters and thousands of members of the Association of Administrative and Professional Staff at UBC contributed tens of thousands more. For the last year of the battle, a law firm, Norton Rose Fulbright, agreed to represent him on a pro bono basis, which Linkletter said âoewas a huge relief to me, as it meant I could defend myself all the way if Proctorio chose to proceed with the litigation." The terms of the settlement remain confidential, but both Linkletter and Proctorio confirmed that no money was exchanged. For Proctorio, the settlement made permanent the injunction that restricted Linkletter from posting the company's help center or instructional materials. But it doesn't stop Linkletter from remaining the company's biggest critic, as "there are no other restrictions on my freedom of expression," Linkletter's blog noted. "I've won my life back!" Linkletter wrote, while reassuring his supporters that he's "fine" with how things ended. "It doesn't take much imagination to understand why Proctorio is a nightmare for students," Linkletter wrote. "I can say everything that matters about Proctorio using public information."

Read more of this story at Slashdot.

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Quantum Teleportation Between Photons From Two Distant Light Sources Achieved

Slashdot - 목, 2025/11/20 - 4:00오후
Researchers in Germany achieved a major milestone for the future quantum internet by successfully teleporting quantum information between photons generated by two different, physically separated quantum dots -- something never accomplished before due to the difficulty of producing indistinguishable photons from remote sources. Phys.org reports: At the University of Stuttgart, the team succeeded in teleporting the polarization state of a photon originating from one quantum dot to another photon from a second quantum dot. One quantum dot generates a single photon, the other an entangled photon pair. Entangled means that the two particles constitute a single quantum entity, even when they are physically separated. One of the two particles travels to the second quantum dot and interferes with its light particle. The two overlap. Because of this superposition, the information of the single photon is transferred to the distant partner of the pair. Instrumental for the success of the experiment were quantum frequency converters, which compensate for residual frequency differences between the photons. These converters were developed by a team led by Prof. Christoph Becher, an expert in quantum optics at Saarland University. [...] In the Stuttgart experiment, the quantum dots were separated only by an optical fiber of about 10 m length. "But we are working on achieving considerably greater distances," says Strobel. In earlier work, the team had shown that the entanglement of the quantum dot photons remains intact even after a 36-kilometer transmission through the city center of Stuttgart. Another aim is to increase the current success rate of teleportation, which currently stands at just over 70%. Fluctuations in the quantum dot still lead to slight differences in the photons. The findings have been published in the journal Nature Communications.

Read more of this story at Slashdot.

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In the AI Race, Chinese Talent Still Drives American Research

Slashdot - 목, 2025/11/20 - 12:30오후
An anonymous reader quotes a report from the New York Times: When Mark Zuckerberg, Meta's chief executive, unveiled the company's Superintelligence Lab in June, he named 11 artificial intelligence researchers who were joining his ambitious effort to build a machine more powerful than the human brain. All 11 were immigrants educated in other countries. Seven were born in China, according to a memo viewed by The New York Times. Although many American executives, government officials and pundits have spent months painting China as the enemy of America's rapid push into A.I., much of the groundbreaking research emerging from the United States is driven by Chinese talent. Two new studies show that researchers born and educated in China have for years played major roles inside leading U.S. artificial intelligence labs. They also continue to drive important A.I. research in industry and academia, despite the Trump administration's crackdown on immigration and growing anti-China sentiment in Silicon Valley. The research, from two organizations, provides a detailed look at how much the American tech industry continues to rely on engineers from China, particularly in A.I. The findings also offer a more nuanced understanding of how researchers in the two countries continue to collaborate, despite increasingly heated language from Washington and Beijing.

Read more of this story at Slashdot.

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