Harry (Hyeonggon) Yoo
Posts
671Following
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126- 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
Harry (Hyeonggon) Yoo
hyeyoo
Edited 19 days ago
I don't find code commentary helpful unless it explains the design first, because these days the implementation is way too complicated for readers to grasp the design by reading the implementation.
Oftentimes such code commentary mechanically describes list of statements, rather than explaining the idea behind it.
A well-written document should try to describe the idea behind the implementation, rather than the implementation itself. (Yeah, that's challenging)
They don't save much time compared to directly reading the code.
(some random rant of the day)
Oftentimes such code commentary mechanically describes list of statements, rather than explaining the idea behind it.
A well-written document should try to describe the idea behind the implementation, rather than the implementation itself. (Yeah, that's challenging)
They don't save much time compared to directly reading the code.
(some random rant of the day)
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Harry (Hyeonggon) Yoo
hyeyoo
I used think that using en/em dashes in writing is pretty elegant... until LLMs started ruining them, and now using them makes it look like it was generated by an LLM.
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Harry (Hyeonggon) Yoo
hyeyoo
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@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/
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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Harry (Hyeonggon) Yoo
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Vlastimil Babka 🇨🇿🇪🇺🇺🇦
vbabka@mastodon.socialSomeone asked me to sign their gpg key so I did. Am I doing this gpg thing right?
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NEPŘÁTELSKÉ EMOCE 🇺🇦🇨🇿
lkundrak@metalhead.club2006: talk is cheap, show me the code!
2026: code is cheap, show me the talk!
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Harry (Hyeonggon) Yoo
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Solidaires Informatique
SolInfoNat@syndicat.solidaires.org
Edited 26 days ago
Red Hat unions against layoffs !
https://solidairesinformatique.org/2026/04/16/red-hat-unions-against-lay-offs/
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Harry (Hyeonggon) Yoo
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K. Ryabitsev-Prime 🍁
monsieuricon
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!
Huge thanks to OVH for their support!
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@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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Harry (Hyeonggon) Yoo
hyeyoo
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Harry (Hyeonggon) Yoo
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Linux Kernel Security
linkersec@infosec.exchangeslab: 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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