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A professional kernel hacker, born in August 6, 2000, and living in Korea (the South one!).

- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- A slab subsystem co-maintainer and a reviewer for the reverse mapping subsystem
- Former Intern @ NVIDIA, SK Hynix, Panmnesia (Security, MM and CXL)
- B.Sc. in Computer Science & Engineering, Chungnam National University (Class of 2025)

Opinions are my own.

My interests are:
Memory Management,
Computer Architecture,
Circuit Design,
Virtualization
@ljs

huge congrats and enjoy!
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@vbabka @ljs
From: Lorenzo Stoakes (Unemployed) <ljs@kernel.org>
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Feel emotional, last day at Oracle done.

It was my dream job, literally being paid to do my hobby full time.

I had incredible freedom to do whatever I wanted upstream for nearly 2 years straight.

I worked with some intensely smart people like Liam Howlett and Matthew Wilcox (two memory management legends) among many other great people.

I went from a hobbyist to a core kernel maintainer with many varied contributions throughout mm.

It was a great team to be part of and I'm very grateful to have had the opportunity.

With that said, I'm very excited about what comes next!

I will remain focused on upstream and my core mm maintainership continues :)

More on that shortly!

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Edited 13 days ago

When I first pushed back on randomly putting LLM configs in the kernel, I was excluded from the conversation.

Then when further discussion was had about it, I was excluded from the conversation.

Then when I submitted a proposal to the maintainer's summit about AI, I was rejected and excluded from the conversation there.

And when documentation was submitted to the kernel, my feedback was ignored and I was excluded from that conversation too.

There was literal press about Linus calling me an idiot for it.

When I pushed back on a person lying about using LLMs to generate code, I was attacked and contradicted and forced to concede the discussion.

And recently, in yet another discussion about LLMs in the kernel, I was excluded from that too.

At each point I've had to fight to have my point of view heard.

It feels like many people in the kernel community just want to stick their head in the sand about AI slop.

But it's not magically going away. Ignore me all you want.

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@ljs @Aissen

we should perhaps design anonymous cow tshirt!
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Harry (Hyeonggon) Yoo

Edited 29 days ago
@ljs ouch, we've lost some emails in the archive :(
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Harry (Hyeonggon) Yoo

Edited 1 month ago
@ljs santa probably loves you too if you watch out and don't cry & pout
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Jonathan Corbet

So, seemingly, somebody's Fedora and proprietary-forge credentials were compromised and used by some sort of LLM-driven bot to take over a lot of Fedora bugs:

https://lwn.net/ml/all/bf38c0fd4537c2908a84b4a4b1fcec8083925918.camel@fedoraproject.org

This person is now claiming to have regained access to the accounts, but it seems that not everybody is buying it.

What a world we have made for ourselves...
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@vbabka it might not be the slipperiness, it might be the BPF
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Vlastimil Babka πŸ‡¨πŸ‡ΏπŸ‡ͺπŸ‡ΊπŸ‡ΊπŸ‡¦

Finally found a comic about myself!

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Harry (Hyeonggon) Yoo

Edited 1 month ago
@ljs @lkundrak @liskin @ptesarik @vbabka

"satanic" because it lives in people's minds without actual physical existence!
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@vbabka @ljs @lkundrak @ptesarik @liskin

he's writing an AI dystopian novel
because he can't be bothered to write more MM books
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Everyone wants to be tall until they take a flight

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Kernel memory management microconf at LPC 2026 is announced with the opening of CFP: https://lore.kernel.org/e3dc73df-0032-4e71-ab80-21b29c6efb46@kernel.org

#linuxplumbers
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@ljs they are not shy!
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@ljs the sun is too shy to show up, as usual
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Vlastimil Babka πŸ‡¨πŸ‡ΏπŸ‡ͺπŸ‡ΊπŸ‡ΊπŸ‡¦

Me: as suggested by willy, adopt an unusual term in order to avoid an established term with weapons connotation.

Youtube shorts algo: haha, look at this, you fool.

(~40 seconds in) - https://www.youtube.com/shorts/UkNnZgBnyqQ

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After Gitlab's recent announcement I am strongly considering migrating Redox OS to Forgejo, a truly open source community maintained project.

https://about.gitlab.com/blog/gitlab-act-2/

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Harry (Hyeonggon) Yoo

Edited 2 months ago
@haoli I guess jail cells are free though... and more convenient than economy seats with free meals
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@haoli which Korea did you mean??
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