Posts
676
Following
107
Followers
129
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
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka@mastodon.social
Edited 1 month ago
@vbabka @ljs

I see the problem! In Korea, it's considered inappropriate to sign using red ink.

"It is a common Korean superstition that if someone’s name is written in red, then death or bad luck will come to that person very soon."

Should have been blue or black :'(

https://gwangjunewsgic.com/arts-culture/korean-myths/behind-the-myth-the-red-pen/
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hyeyoo
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vbabka@mastodon.social

Vlastimil Babka 🇨🇿🇪🇺🇺🇦

Someone asked me to sign their gpg key so I did. Am I doing this gpg thing right?

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hyeyoo
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lkundrak@metalhead.club

NEPŘÁTELSKÉ EMOCE 🇺🇦🇨🇿

2006: talk is cheap, show me the code!
2026: code is cheap, show me the talk!

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hyeyoo
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SolInfoNat@syndicat.solidaires.org

Solidaires Informatique

Edited 1 month ago

Red Hat unions against layoffs !

https://solidairesinformatique.org/2026/04/16/red-hat-unions-against-lay-offs/

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hyeyoo
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monsieuricon

K. Ryabitsev-Prime 🍁

EU traffic to lore.kernel.org is now served by two OVH-hosted nodes, one in Strasbourg, another in Warsaw.

Huge thanks to OVH for their support!
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to
@ConstellationUnion @melver @linkersec I don't get your question :)
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs @vbabka @paulmckrcu ...which was built on top of RCU, created by the smart manic one-ish more decade ago than that
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka@mastodon.social
@vbabka @paulmckrcu @ljs

IIRC Hugh was the maniac who invented it decades ago for anon_vma!
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @vbabka@mastodon.social
@vbabka @poni how do you pursue that?
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hyeyoo
repeated
linkersec@infosec.exchange

Linux Kernel Security

slab: support for compiler-assisted type-based slab cache partitioning

@melver posted a kernel patch that provides an alternative mode to RANDOM_KMALLOC_CACHES called TYPED_KMALLOC_CACHES.

The new mode leverages a Clang 22 feature called "allocation tokens". Unlike RANDOM_KMALLOC_CACHES, this mode deterministically assigns caches to allocations based on their types, and not allocation sites.

https://lore.kernel.org/all/20260331111240.153913-1-elver@google.com/

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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @linkersec@infosec.exchange
Edited 1 month ago
@linkersec @melver /me piggybacks on Marco's nice security enhancement work with little effort blobcatpaw
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs in your case, you start the day, thinking "okay finally I have some time to work on my project, I reviewed all the churns!", then a few ppl send series of 10+ patches and start looking at them & decide to like or refuse them & say something, and repeat this tmrw...
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hyeyoo

Harry (Hyeonggon) Yoo

Edited 1 month ago
I wake up and start the day, thinking "okay, this feature is now ready. I'm just doing the last review & test now before submitting it", then find a new bug, fix it, review others code, investigate another issue, then repeat this tomorrow...
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kernellogger@hachyderm.io

Thorsten Leemhuis (acct. 1/4)

7.0 is out:

https://lore.kernel.org/lkml/CAHk-=wj2WqpPBwpAXo8bj_Hx-NxKMRVTVMUaQis7+Vm6XLRZiw@mail.gmail.com/

For a list of new features, see:
* the LWN brief news entry – https://lwn.net/Articles/1067279/ (Screenshotted below)

* the LWN merge-window summaries – https://lwn.net/Articles/1057769/ and https://lwn.net/Articles/1058664/

* the KernelNewbies 7.0 page – https://kernelnewbies.org/Linux_7.0

And reminder: the jump from 6.19 to 7.0 does not mean anything apart from "Linus ran out of fingers and toes to count on."

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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sef1548@mastodon.social
@sef1548 I already got one a few months ago due to backpain 😢😢
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @oleksandr@natalenko.name
@oleksandr new regressions keep getting added as I get older...
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hyeyoo

Harry (Hyeonggon) Yoo

oops my back suddenly hurts today. what's wrong!
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sef1548@mastodon.social
@sef1548 Linux v7.0-rc4 with some custom kernel patches on top!
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs oh calm down bruv, tbf it's not me and let's blame the guy who broke it, right?
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hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
@ljs

At least it's not broken as usual!
*runs away*
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