Posts
475
Following
90
Followers
94
n00b Kernel Hacker
- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- Ex-Intern @ SK Hynix (Linux Kernel MM) (2024.12 ~ 2025.01)
- Ex-Intern @ NVIDIA Korea (Security System Software) (2024.06 ~ 2024.11)
- Ex-Intern @ Panmneisa (CXL emulation stuff) (2023.09 ~ 2023.12)
- Undergraduate majoring CSE (estimated graduation: Feb. 2025)
- Working as reviewer at Linux Slab subsystem
- Born in August 6, 2000

Opinions are my own.

My interests are:
Memory Management,
Computer Architecture,
Circuit Design,
Virtualization
hyeyoo
repeated
vbabka@mastodon.social

Vlastimil Babka

Well well, look what the cat dragged in
https://nostarch.com/linux-memory-manager

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hyeyoo
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ljs@fosstodon.org

Lorenzo Stoakes

Very happy to announce my book The Linux Memory Manager is now available to pre-order at

https://nostarch.com/linux-memory-manager

It's a comprehensive 1,300 page exploration of how memory functions in Linux that goes into great depth on the subject, and is the first book of its kind for 20 years :)

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hyeyoo

Hyeonggon Yoo

Edited 5 days ago
This book serves as a guiding light in navigating the increasingly complex memory management subsystem. A must-have book if you're interested in memory management!

I'mq glad to see the author's long effort finally paying off. Finally available for preorder 👏.

Already ordered one!

https://fosstodon.org/@ljs/114004492112728241
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hyeyoo
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corbet

Jonathan Corbet

Forbes is warning us that Android phones are under severe risk due to a kernel vulnerability:

https://www.forbes.com/sites/zakdoffman/2025/02/03/google-warns-all-android-users-your-phone-is-now-at-risk/

This comes from Google's Android security bulletin for February:

https://source.android.com/docs/security/bulletin/2025-02-01

...which informs us that "There are indications that CVE-2024-53104 may be under limited, targeted exploitation". The vulnerability in question, though, is CVE-2024-53104:

https://lwn.net/ml/all/2024120232-CVE-2024-53104-d781@gregkh

...which is in the uvcvideo camera driver. Either I'm missing something badly, or the only way to exploit this would be to plug a malicious camera device into the phone. I can see why they would want to fix this, but I'm not sure it's a red-alert situation for most of us?
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hyeyoo

Hyeonggon Yoo

Reply to @lkundrak@metalhead.club
@lkundrak
Happy New Year :)
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hyeyoo

Hyeonggon Yoo

Reply to @oleksandr@natalenko.name
@oleksandr @vbabka
but then where do we shitpost
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hyeyoo

Hyeonggon Yoo

Reply to @oleksandr@natalenko.name
@oleksandr @vbabka
If you meant moving to another instance, I don't think so.
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hyeyoo
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nafnlaus@fosstodon.org

Nafnlaus 🇮🇸 🇺🇦

Pretty much every serious photographer here tries to capture photos of the and the together. Sometimes, they succeed quite well ;) Photos from Wioleta Gorecka, taken near Reykjanesvíti.

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hyeyoo

Hyeonggon Yoo

Reply to @oleksandr@natalenko.name
@oleksandr @vbabka vlasta’s not on mastodon anymore, sadly…
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hyeyoo

Hyeonggon Yoo

Reply to @lkundrak@metalhead.club
@lkundrak same here 😞😮‍💨
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hyeyoo
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devopscats@toot.cat

devopscats

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hyeyoo
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phoronix@masto.ai

Phoronix

Intel SNC6 Sub-NUMA Clustering Support With Linux 6.13

A few weeks back I wrote about Intel engineers preparing SNC6 support with Linux for six nodes per L3 cache. That was the first time hearing of SNC6 with SNC 1/2/3/4 sub-NUMA clustering modes being more common. That support is now ready for merging with the Linux 6.13 kernel cycle...
https://www.phoronix.com/news/Intel-SNC6-For-Linux-6.13

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hyeyoo
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lkundrak@metalhead.club

Lubko Van Ape 🇺🇦

omg sir @vbabka you made the shittiverse go crazy!! 🎖️

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hyeyoo
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corbet

Jonathan Corbet

Definitely a day best spent outdoors
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hyeyoo
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ljs

Edited 3 months ago
Famous l337 hax0r Vmastilil Bobka @vbabka SPED UP BASED PENGUIN OS BY 4000%!!!!

Check it out and smash the like button + subscribe at

https://www.youtube.com/watch?v=m9dZkRwWEj8
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hyeyoo
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vbabka

Since the report of 3888.9% performance improvement made it not only to Phoronix (no surprises there) but is now also the subject of at least two youtube videos, where one has 212k views at this point (just wow), I've decided to explain in some detail why the benchmark is in this context completely bogus, and that people missed the very same report also contains a 9% regression in another benchmark (which may be actually less bogus :)
Hope someone finds this useful. http://lore.kernel.org/all/3b09bf98-9bd4-465b-b9c5-5483a6261dc7%40suse.cz
The youtube videos: https://www.youtube.com/watch?v=m9dZkRwWEj8
https://youtu.be/OvLEx6fPVrg
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hyeyoo

Hyeonggon Yoo

Reply to @vbabka
@vbabka Is that caused only after applying the patch? Or has it been like that before?
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hyeyoo

Hyeonggon Yoo

Reply to @lkundrak@metalhead.club
@lkundrak want to lose rather than gain more
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hyeyoo

Hyeonggon Yoo

Oh no I'm gaining weight
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hyeyoo

Hyeonggon Yoo

Unintentionally messed up @vbabka 's tree tree by doing last-minute reviews :(
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