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MeshGuard: MUD-Based Network Access Control for Large-Scale Thread-Powered IoT Networks

Announce Type: new Abstract: The IETF standard Manufacturer Usage Description (MUD) enables manufacturers to equip IoT devices with certified URLs that provide traffic profiles for those devices, helping administrators enforce network access control. However, MUD assumes devices operate on full IP stacks and therefore does not account for constrained IoT devices running Thread--the dominant low-power mesh networking standard--which lacks complete TCP/IP functionality. While prior work...

arXiv CS 9d ago

Confocal Subsurface Backscattering Microscopy for Optical Identification of Nanoscale Threading Dislocations in SiC Substrates

arXiv:2606.04607v1 Announce Type: new Abstract: High density threading dislocations in SiC wafers facilitate reverse leakage and degradation, yet commercial defect inspection systems based on surface profiling and PL dark-contrast miss nanoscale TDs because they lack resolvable surface signatures and band-edge PL is uniformly quenched by background dopants or compensating defects. Here, we develop confocal subsurface backscattering microscopy to nondestructively detect TDs, based on the...

arXiv Physics 6d ago

MusaCoder: Native GPU Kernel Generation with Full-Stack Training on Moore Threads GPU

arXiv:2606.04847v1 Announce Type: new Abstract: Native GPU kernel generation turns high-level tensor programs into executable, efficient low-level code. Existing Large Language Models (LLMs) struggle with this task, while execution-based reinforcement learning suffers from sparse rewards, reward hacking, and training instability. We present MusaCoder, a full-stack training framework for native GPU kernel generation on CUDA and MUSA backends.

arXiv CS 6d ago

One (Thread) Can Keep a (PRNG) Secret, but not Two

arXiv:2606.00918v2 Announce Type: replace Abstract: We present a novel, practical attack on the IPv6 Fragment ID generation algorithm of XNU, which is the kernel used by Apple products such as macOS and iOS. This attack exploits a race-condition vulnerability in the algorithm's pseudorandom number generator (PRNG) to cryptanalytically break, learn the internal state of the generator, and consequently predict fragment IDs, which, in turn, facilitates an IPv6 fragment spoofing attack. As far...

arXiv CS 7d ago

IRGC says Iran has more 'trump cards' up its sleeve as talks hang by a thread

A senior IRGC general said Iran had not revealed all its military capabilities and was ready for direct confrontation with the US and NATO, as hardliners linked to acting IRGC commander Ahmad Vahidi were identified as the force behind Monday's suspension of indirect negotiations with Washington. Iran has not yet revealed all of its military capabilities and remains fully prepared for any scenario, including direct confrontation with the US and NATO, senior IRGC military official Brigadier...

Euronews 8d ago

Please don't spam people looking for employment. It's just cruel

Earlier I posted in a “Who wants to be hired?” thread, looking for a place where I could apply my experience in hospitality, food tech and automation. A couple hours later I received an email:“Hi Ilia,I saw your comment on the June Who’s Hiring thread. I build production-ready TypeScript and Python systems that integrate LLMs into real workflows, with particular focus on RAG, agent orchestration, and clear blah-blah-blah”Come on.

Hacker News 8d ago

Restartable Sequences

May 31st, 2026 @ justine's web page The best kept secret at the frontier of system programming right now is the Linux 4.18+ (c. 2018) concept of restartable sequences or rseq for short. They allow you to create thread-safe data structures without locks or atomics which scale to microprocessors with many cores. It's currently only possible to use rseq on Linux using handwritten assembly code.

Hacker News 10d ago

How elasticity affects bubble pinch-off

Announce Type: replace-cross Abstract: The pinch-off of bubbles in viscoelastic liquids is a fundamental process that has received little attention compared to viscoelastic drop pinch-off. While these processes exhibit qualitative similarities, the dynamics of the pinch-off process are significantly different. When a drop of a dilute polymer solution pinches off, a thread is known to develop that prevents breakup due the diverging polymer stresses.

arXiv Physics 6d ago

Intel Diamond Rapids to boost core counts to 192, but RIP Hyperthreading

Intel’s upcoming Diamond Rapids Xeon will boost core counts to 192, a 50 percent increase over last generation, the x86 giant revealed at Computex in Taipei this week. But while core counts continue to rise, in doing so Intel has managed to cut thread counts by a quarter. Yep, Hyperthreading – Intel's marketing for simultaneous multithreading – is officially dead.

The Register 9d ago

Rayleigh-Plateau instability of an elasto-viscoplastic filament

Announce Type: replace Abstract: A slender-thread model is used to explore the Rayleigh-Plateau instability of a filament of elasto-viscoplastic fluid. Without elasticity, a finite yield stress suppresses any linear instability for a filament of constant radius. Including sub-yield elastic deformation permits an elastic Rayleigh-Plateau instability above a critical Deborah number.

arXiv Physics 8d ago