Posts
490
Following
96
Followers
107
A relatively new professional kernel hacker, born in August 6, 2000, and living in Korea (South!).

- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- Reviewer for the Linux Slab 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
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka
@vbabka oh you are telling me...

Well but I am dumb enough try that.
Btw at least @ljs will not recommend this :P
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @hyeyoo
Edited 1 year ago
By the way, it's not easy to take general kernel or MM topic as a project during an internship or as a team project in university. I guess it will remain a hobby for few years...

My next plan for this winter vacation is to do a research project in compilers with a group of students (at Purdue University, USA)

After that, I don't know. Maybe another internship or just prepare for graduation and do some patches.
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hyeyoo

Harry (Hyeonggon) Yoo

Edited 1 year ago
Yesterday, my internship finally finished. It was fun and inspiring to look at a project (QEMU) other than Linux, and learn how PCIe/CXL/ACPI/UEFI works in general.

Now trying to do some work (a little) on CXL emulation in QEMU, though I'm not sure how far I want to pursue as my heart is still in MM.

https://lore.kernel.org/linux-cxl/20231222090051.3265307-1-42.hyeyoo@gmail.com/T
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hyeyoo
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robpike@hachyderm.io

rob pike

This link captures the confusion about how to pronounce "fsck":

https://lwn.net/Articles/190223/

Here's the truth. Ted Kowalski, username frodo, may he rest in peace, was the original author, just down the hall from my office in Murray Hill, and his name for the program had a 'u' where there is now an 's'. Management made him change it for distribution, but they couldn't make him change his pronunciation.

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nathanchance@fosstodon.org

Nathan Chancellor

Interesting post from the Android Rust compiler team:

https://android-developers.googleblog.com/2023/12/faster-rust-toolchains-for-android.html

Seems to line up with my benchmarks for performing a lot of the same optimization techniques to LLVM and clang and it is cool to see the amount of savings that this translates to for CI. Reminds me that I should look at integrating my kernel.org LLVM builds into tuxmake so that we can use them with tuxsuite…

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hyeyoo

Harry (Hyeonggon) Yoo

when @ljs is low on cat
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @Andi
@Andi @krzk What a coincidence! life is so unpredictable...
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka
Edited 1 year ago
@vbabka @ljs @lkundrak
yeah I don't (try not to) care
It's now just an empty bottle :)
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka
@vbabka @ljs @lkundrak I did not insult anyone, no?
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs
@ljs @lkundrak @vbabka
Here we go!
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @lkundrak@metalhead.club
@lkundrak @vbabka my back just started hurting after reading this
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @Andi
@Andi *sending a screenshot of the picture you've sent to GM being sent to me*
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs
@ljs @lkundrak @vbabka oh... didn't know it's a rock band :)

just judged it only by its picture...
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs
@ljs @lkundrak @vbabka
what is it lol, looks like a long hair nerds club in Hogwarts?
"We don't get a haircut, by the way"
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @Andi
@Andi He's such a nice guy, we have weekly kernel study group meeting together!
Had you worked with him before?
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka
Edited 1 year ago
@vbabka I hope no one is scared even without reading the code
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hyeyoo

Harry (Hyeonggon) Yoo

At OSS Festival last week (in Seoul)
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hyeyoo

Harry (Hyeonggon) Yoo

War and Peace
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JenMsft@mastodon.social

Jen Gentleman

How QR codes are made:

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hyeyoo

Harry (Hyeonggon) Yoo

Shared bicycles (not a biker gang)
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