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

Edited 1 year ago
I was refreshing my zsdesc patch series but encountered unrelated bug while testing (I bought new RAM so it must be software bug...)

Fortunately it was bisectable and I'm writing a report about it
Not sure if people will welcome an oops image instead of text format.
0
0
1
hyeyoo

Hyeonggon Yoo

a funny thing about memtest is that it can fail due to memory failure.
0
0
2
hyeyoo

Hyeonggon Yoo

Edited 1 year ago
today I was hit by a kernel bug on the latest mm-unstable and so I was debugging it. but after a few kernel crashes even a normal kernel doesn't boot.... what's wrong with you :(

Not sure if it is a filesystem corruption caused by kernel bug, or they just did happen independently.
1
0
2
hyeyoo

Hyeonggon Yoo

Edited 1 year ago
I have the last final exam today. haven't decided what to do during the summer vacation yet, but it will mostly involve learning new things and writing some kernel code.
1
0
3
hyeyoo

Hyeonggon Yoo

please end me or this semester
2
0
3
hyeyoo

Hyeonggon Yoo

the end of this semester is near,
can't wait for summer vacation
0
0
1
hyeyoo

Hyeonggon Yoo

@monsieuricon

https://lore.kernel.org/linux-mm
It seems to be no longer updated
0
0
1
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
0
3
4
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.
2
1
6
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.
1
0
2
hyeyoo

Hyeonggon Yoo

off and off
0
0
3
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
2
0
3
hyeyoo

Hyeonggon Yoo

Starting to like Joan's drawings more
0
0
2
hyeyoo

Hyeonggon Yoo

TIL: NUMA configuration and distance matrix are parsed from device trees, ACPI, or dummy configuration is used.
0
0
3
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
0
4
9
hyeyoo

Hyeonggon Yoo

South Korea's space rocket Nuri launched

https://en.yna.co.kr/view/AEN20230524009656320
1
0
1
hyeyoo

Hyeonggon Yoo

Edited 1 year ago
seems I made a mistake,
want to be more wise and strong!
1
0
0
hyeyoo
repeated
vbabka

SLAB deprecation posted! So many defconfigs...
https://lore.kernel.org/all/20230523091139.21449-1-vbabka@suse.cz/
1
5
9
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?
1
0
1
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.
0
0
2
Show older
About social.kernel.org

Terms of service

  1. Please do not use this service in violation of the Linux Kernel Code of Conduct. Doing so will result in your account suspension with the referral of the matter to the CoC committee.

  2. "Repeating"/"boosting" someone else's status on this platform will be treated as endorsement and will fall under rule #1.

  3. You are encouraged to use this platform to promote your work on the Linux Kernel, but there is no restriction on permitted topics (with the exception of anything covered by #1 above).

  4. There is no requirement to post in English, but it should be considered the primary language of communication on this platform.

Privacy notice

The admins of this service have access to all posted statuses. They aren't looking, but if it's something they shouldn't know about, then you should not post it on this platform.

Please see the Linux Foundation Privacy Policy, which applies to this platform as well.

Getting your own account

If you would like an account on this instance, please check that the following applies to you:

  • You are listed in MAINTAINERS or CREDITS

  • OR: You have a kernel.org account or email address

  • OR: You have a long and established history of involvement with the Linux Kernel

If the above is true and you agree with the Terms of Service and Privacy Notice listed above, please use these instructions to request an account: