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A tweet recommending the OSDev community wiki, a comprehensive resource for writing an operating system from scratch, covering bootloaders, kernels, filesystems, and memory managers with real code examples.
A tweet recommending a resource for those interested in LLM inference at the kernel and memory level.
Maestro is a lightweight Unix-like kernel written in Rust, aiming for safety and Linux compatibility. Currently supports x86 and x86_64 architectures with many features but still in early development.
Ultra is a new from-scratch kernel designed to be nearly fully ABI compatible with the Linux kernel userland, aiming for broad compatibility.
Apple has begun integrating Swift into the kernel via a new effort called KernelKit, with an Embedded Swift runtime appearing in macOS and iOS, marking a step toward memory-safe kernel extensions.
Fedora proposes replacing the kernel console fbcon with the userspace console kmscon by default in Fedora 45, offering enhanced configurability, security, and features like scrolling and better keyboard support.
A 27-year-old authentication bypass vulnerability in OpenBSD's PPP stack allows an attacker to gain full PPPoE access without credentials by sending zero-length username and password fields, exploiting a missing bounds check in the PAP handler. The same code also permits a kernel heap over-read.
This article describes how to create a minimal Linux boot that runs a single process, stripping down the usual initramfs to boot in under a second.
Zinnia is a modular 64-bit Unix-like kernel written in Rust, designed to boot on UEFI systems and run a modern desktop with Wayland or X11. It implements POSIX APIs and common Linux/BSD extensions.
The Linux kernel 7.1 has been announced on the kernel mailing list, marking a new major version release with expected feature updates and improvements.
Published a custom kernel to further optimize LTX-2.3 from Lightricks, achieving 1.52x speedup on GB10, building upon previous torch.compile and cuDNN attention optimizations.
Charles Frye announces a blog post detailing contributions to FA4 internals, focusing on inference performance improvements that have been upstreamed.
A critical local privilege escalation vulnerability in FreeBSD (CVE-2026-45257) allows an unprivileged user to write arbitrary data into the page cache of any readable file, bypassing file permissions and flags, leading to full root compromise. The bug affects default installations of FreeBSD 13.0 and later via unsafe composition of sendfile, KTLS, and in-kernel AES-GCM decryption.
Modular's kernel team is optimizing serving for MiniMax M3's 1M-token context and native multimodality, with open weights dropping soon for immediate deployment on Modular.
The author presents a method to verify that /proc is a genuine proc filesystem, addressing limitations of inotify in detecting mounts for reliable file system watching.
A proposal to add spawn templates to the Linux kernel aims to optimize the fork+exec pattern by caching executable information, though the current patch set is unlikely to be accepted as-is.
Helion is a Python DSL that compiles to optimized Triton code for performance-portable GPU kernels. This tutorial at PLDI 2026 covers Helion's architecture, autotuning, and CuteDSL backend.
The PyTorch Foundation project Helion is hosting a Helion DSL Tutorial at PLDI 2026 in Denver. It's an interactive workshop for compiler researchers, kernel authors, and ML systems engineers to write, autotune, and run Helion kernels.
Morgan Linton successfully boots a custom operating system built from scratch using OpenAI's Codex and GPT 5.5, a project started on May 4th.
A tweet highlights James Molloy's 2008 free tutorial 'Roll Your Own Toy UNIX Clone OS', which teaches building a Unix-like kernel from scratch in C and assembly, covering bootloader, memory management, filesystems, and multitasking.