Posts
473
Following
87
Followers
92
n00b Kernel Hacker
- Ex-Intern @ NVIDIA Korea (Security System Software) (2024.06-2024.11)
- Ex-Intern @ Panmneisa (CXL emulation stuff) (~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

Hyeonggon Yoo

the end of this semester is near,
can't wait for summer vacation
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hyeyoo

Hyeonggon Yoo

@monsieuricon

https://lore.kernel.org/linux-mm
It seems to be no longer updated
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hyeyoo
repeated
ljs

Edited 1 year ago
Updated the progress page - dat flat line. Praying that nothing else interferes with progress going forward!

https://linuxmemory.org/progress
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hyeyoo
repeated
ljs

OK so that, minus descriptions of things like mprotect(), madvise(), mremap() and general review and cleanup is process memory done.

Been working on this part of the book (initially I thought it'd be 1 chapter, lol) for at least 6 months.

After a month of basically no book progress due to being away for lsf/mm and ill this is a great relief and keeps me on time after my last reschedule of targets.

Next: OOM killer chapter which, when done, will be released as a sample chapter.
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hyeyoo

Hyeonggon Yoo

Edited 1 year ago
I was unable to access my school's e-learning site this morning. Turns out I was expelled from school for unknown reason. I was panicking, but a school employee called me to say that there was a mistake while processing scholarship for school tuition and everything will be fine.
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hyeyoo

Hyeonggon Yoo

off and off
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hyeyoo

Hyeonggon Yoo

Edited 1 year ago
looks like @ljs 's changes to GUP broke my out-of-tree virtualbox driver. out-of-tree drivers suck :P
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hyeyoo

Hyeonggon Yoo

Starting to like Joan's drawings more
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hyeyoo

Hyeonggon Yoo

TIL: NUMA configuration and distance matrix are parsed from device trees, ACPI, or dummy configuration is used.
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hyeyoo

Hyeonggon Yoo

Edited 1 year ago
Videos of LSFMMBPF Summit / OSSNA sessions are now available on Youtube:


https://youtube.com/playlist?list=PLbzoR-pLrL6rlmdpJ3-oMgU_zxc1wAhjS

https://youtube.com/playlist?list=PLbzoR-pLrL6p445pIqTLUIzsceFp_puSy
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hyeyoo

Hyeonggon Yoo

South Korea's space rocket Nuri launched

https://en.yna.co.kr/view/AEN20230524009656320
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hyeyoo

Hyeonggon Yoo

Edited 1 year ago
seems I made a mistake,
want to be more wise and strong!
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hyeyoo
repeated
vbabka

SLAB deprecation posted! So many defconfigs...
https://lore.kernel.org/all/20230523091139.21449-1-vbabka@suse.cz/
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hyeyoo

Hyeonggon Yoo

Edited 1 year ago
[Intel Publishes "X86-S" Specification For 64-bit Only Architecture]( https://www.phoronix.com/news/Intel-X86-S-64-bit-Only )

Not booting from real mode (-> protected mode -> long mode) anymore.
Still seems to support running 32 bit applications on 64 bit kernel.

Wait, who wants to run 32 bit kernel on 64 bit processors?
How much silicon is saved with this new ISA?
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hyeyoo

Hyeonggon Yoo

My dream tonight was really strange: I was kidnapped and forced to do kernel work, and then I was sold to a software company.
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hyeyoo

Hyeonggon Yoo

@sj @vbabka @cwayne

Hi Chris
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hyeyoo

Hyeonggon Yoo

Now I have my key uploaded to keys.openpgp.org:

https://keys.openpgp.org/search?q=42.hyeyoo%40gmail.com
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hyeyoo

Hyeonggon Yoo

going to seattle (and then vancouver),
everything is good but WIFI speed is 1Mbps
(21.95$)
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hyeyoo
repeated
vbabka

I've been never... brave enough for doing slides on the plane on the way to conference, so here we go, ahead of the travel to Vancouver: https://ossna2023.sched.com/event/2b02a776f0e49c787af92b1d1847622e
Hopefully I'll be just adding some last minute developments from the respective LSF/MM session to report in my LinuxCon track talk. And hopefully those developments will include "we agreed to remove SLAB, nobody objected" ;)
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hyeyoo

Hyeonggon Yoo

https://lwn.net/SubscriberLink/930667/02592091cb9310b6

@ljs on the news!
I could see his pain while reading it
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