@SDLRenderer profile picture
Varun R Mallya @SDLRenderer

I like the kernel and eBPF | varunrmallya.bsky.social

Joined July 2024
  • Tweets 62
  • Following 1,401
  • Followers 111
1 Photos and videos
Varun R Mallya retweeted
Oscar Moxon
@oscarmoxon
Jun 10
Replying to @martin_casado
Imagine training a model on the combined work of every CS research scientist and then barring them from using it to do CS research.
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Varun R Mallya retweeted
kernullist
@kernullist
May 21
Wrote up some notes on PCIe DMA cheats — how the protocol stack works, how IOMMU translation and bypass techniques interact, what FPGA hardware the attack surface looks like, and how detection stacks up from config-space fingerprinting through TPM attestation. kernullist.github.io/kernull…

About PCIe DMA Cheats: Protocol, IOMMU, Hardware, and Detection

External DMA cheats are the hardest game-cheating threat to defend against, because the cheat code does not live on the machine running the game. The “victim” PC sees only a passive-looking PCIe...

kernullist.github.io
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guys at @github , there's a bug on your file upload endpoint. if there is no commit message provided it fails with a bad request (400 error) without telling me what went wrong. this is new. never happened before.
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honestly, it just tells me a lot about the AI policy at Github now.
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Varun R Mallya retweeted
sui ☄️
@birdabo
Apr 6
SOMEONE MADE A DIGITAL WHIP TO MAKE CLAUDE WORK FASTER 💀

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With that, I have 5 merged patchsets to the kernel. Someone pls hire me lmao.
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I've fully moved to vim. I think it's the best editor for now because no one can enshittify it. I lost good old VSCode and Jetbrains to AI Slop. I even lost Zed to it.
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news.ycombinator.com/from?si… You can play music on desmos now.

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I just got my first patch merged to the kernel. Cool shi ngl.
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emitters.space/
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just managed to program with RTOS for the first time on ESP32. cool shi.
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lmao I found a bug on the LLVM eBPF backend.
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I am become no lifer, evader of sunlight.
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Varun R Mallya retweeted
Cloudflare
@Cloudflare
8 Oct 2025
84 million requests a second means even rare bugs appear often. We'll reveal how we discovered a race condition in the Go arm64 compiler and got it fixed. cfl.re/42wpJX7

How we found a bug in Go's arm64 compiler

84 million requests a second means even rare bugs appear often. We'll reveal how we discovered a race condition in the Go arm64 compiler and got it fixed.

blog.cloudflare.com
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Well. My Blog is somehow on hacker news and my repository blew up. Damn news.ycombinator.com/item?id…
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xeon.me/posts/final-eval-gso… Got done with my GSoC some time ago. I fully intend to continue contributing to GNOME tho. The PR is certainly in a working state and does contain some of my best work, but a few parts of it are unpolished and require some love.

Sysprof GSoC Final Report

Talks about my contribution process, project and how I worked on it

xeon.me
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db.cs.cmu.edu/papers/2025/bu… great idea. once im done with my current stuff, i'll try this one.
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xeon.me/gnome/pythonbpf/ wrote a blog on pythonbpf

PythonBPF - Writing eBPF Programs in Pure Python

I brag about my newest obsession.

xeon.me
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Currently working on a Python based DSL compiler for BPF programs that compiles to LLVM IR. Check it out at github.com/varun-r-mallya/Py…

GitHub - pythonbpf/Python-BPF: Write eBPF programs in Pure Python

Write eBPF programs in Pure Python. Contribute to pythonbpf/Python-BPF development by creating an account on GitHub.

github.com
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Also, you can `pip install pythonbpf`
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Tbh this is my team's submission for a hackathon, which is why the code is pretty bad We plan on fixing it after the initial judging is done and my exams get over.
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