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ANAmogh Nivaskaramoghpn.hashnode.dev12h ago · 10 min read

Kernel Threads Implementation: Adding True Parallelism to the xv6 kernel

Full implementation on GitHub and full design on the Design Doc. The Problem Vanilla xv6 boots on 3 cores. But the way that a process is defined in xv6, it has only a single state of execution. Meani

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SRSanthosh Reddyblog.omlabs.co4d ago · 4 min read

Quantum Kernels: What They Actually Do

It's late, I've had three tabs of Qiskit docs open all evening, and I just spent an hour convincing myself I finally understood quantum kernels — only to realize halfway through writing this that one

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AEAnnie-Stewart Elijahalvissraghnall.hashnode.devAug 1 · 5 min read

I wrote a custom allocator, so you get a bump & he gets a bump. 👍

Every developer gets to a point in their dev careers where they get extremely curious about system kernel internals — how it handles processes, memory, scheduling, etcetera etcetera. I like to think I

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BDBharat Dev Burmanblog.crazo7924.is-a.devJul 17 · 5 min read

Beyond the Mute Button: How a Broken LED Led to My First Linux Mainline Kernel Commit

Every Linux user has that one thing. That tiny, lingering hardware quirk that doesn’t break the OS, but softly mocks you from the keyboard every single day. For me, it was the hardware audio mute LED

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4F404 Founders404-founders.comJul 7 · 5 min read

Linux Kernel CVE-2026-43499: GhostLock Root Exploit

A 15-year-old use-after-free bug in the Linux kernel's futex code, dubbed GhostLock, lets any logged-in local user grab a root shell in about five seconds, and breaks out of Docker and Kubernetes cont

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ANAmogh Nivaskaramoghpn.hashnode.devJun 30 · 18 min read

Building a Multi-Level Feedback Queue Scheduler in xv6

The full xv6 implementation, benchmarks, and test programs are available on here GitHub The Problem xv6's default round-robin scheduler has no concept of what a process is doing with its time slice. A

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DYDharamraj Yadavdharamin.hashnode.devJun 21 · 6 min read

I Thought I Knew Linux — Then I Actually Learned It (Week 1)

The Big Picture Before you read this doc you must know english is my second language and this doc is have completely my own words not any AI, translator etc. What an OS really is An Operating System

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WWingEdge777wingedge777.hashnode.devMay 24 · 8 min read

[CUDA in Practice] RoPE — Why Kernel Fusion in Hand-Written Operators Matters: Reducing Memory Traffic and Launch Overhead

AI compilers are evolving fast. In many cases, torch.compile plus JIT optimization in PyTorch can deliver striking speedups, to the point that people often say, "hand-written operators are no longer n

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AAAli Abbas Chadharaliabbaschadhar.hashnode.devMay 22 · 6 min read

Container Security Beyond Basics: Seccomp, AppArmor, and Capabilities

When teams first embrace container security, they usually start with the low-hanging fruit: scanning images for known vulnerabilities (CVEs), linting Dockerfiles, and keeping packages up to date. Whil

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TATawaliou ALAOtawaliou.comMay 16 · 3 min read

OS Design and Implementation: (Week 8-9) - Scheduling; File system

Scheduling: big points To execute multiple processes (multiplexing), xv6 switches each CPU from one process to another in the following situations: Voluntary switches: Occur when a trap (such as a sy

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#kernel

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Trending tags this week

Kernel Threads Implementation: Adding True Parallelism to the xv6 kernel

Quantum Kernels: What They Actually Do

I wrote a custom allocator, so you get a bump & he gets a bump. 👍

Beyond the Mute Button: How a Broken LED Led to My First Linux Mainline Kernel Commit

Linux Kernel CVE-2026-43499: GhostLock Root Exploit

Building a Multi-Level Feedback Queue Scheduler in xv6

I Thought I Knew Linux — Then I Actually Learned It (Week 1)

[CUDA in Practice] RoPE — Why Kernel Fusion in Hand-Written Operators Matters: Reducing Memory Traffic and Launch Overhead

Container Security Beyond Basics: Seccomp, AppArmor, and Capabilities

OS Design and Implementation: (Week 8-9) - Scheduling; File system