Posts
476
Following
91
Followers
93
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

Hyeonggon Yoo

Reply to @vbabka
@vbabka @MASTERBOOTRECORD

what, already infected even before I buy it?
0
0
1
hyeyoo

Hyeonggon Yoo

Reply to @hyeyoo
Called several school departments today and regained access to the e-learning site :P
0
0
1
hyeyoo

Hyeonggon Yoo

Reply to @vbabka
@vbabka @MASTERBOOTRECORD

wow, that's quite a blast from the past!

did it end up infecting other computers as well, or mess up your computer?
1
0
1
hyeyoo

Hyeonggon Yoo

Reply to @vbabka
@vbabka @MASTERBOOTRECORD

How have you managed to boot without master boot record?
1
0
1
hyeyoo

Hyeonggon Yoo

Reply to
@vbabka @kernellogger @sj @ljs

the strategy of utilizing LLMs for documentation might be useful for motivating someone to think "Oh, this is a piece of shit, I should completely rewrite it"
1
0
3
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

Reply to @ljs
@ljs @cwayne @vbabka
Don't forget to mention me when discussing
g dumb idiots
1
0
3
hyeyoo

Hyeonggon Yoo

Reply to
@kernellogger @ljs

lol there are already so many obstacles in this driver's way
2
0
3
hyeyoo

Hyeonggon Yoo

Reply to
@kernellogger @ljs

I use KVM only for kernel development and virtualbox/vmware for other work.

Because I'm not familiar with KVM yet,
maybe this is the chance to completely migrate to KVM ;)
1
0
1
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

Reply to @ljs
Edited 1 year ago
@ljs @ptesarik Yes! "might be the case" was was not clear ;)
0
0
1
hyeyoo

Hyeonggon Yoo

Reply to @hyeyoo
Edited 1 year ago
@ptesarik @ljs

I thought maybe freeing unnecessary vmemmap pages for HugeTLB pages might be the case, but it seems to remap to first vmemmap page. And if I am not mistaken pfn_valid() will return true for them.
1
0
0
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

Reply to
@ptesarik @ljs

When do usable PFNs (for which pfn_valid() is false) exist?
2
0
1
hyeyoo

Hyeonggon Yoo

Reply to @vbabka
LMAO probably should launch more like the north one?
(...learning how to make a joke...)
0
0
1
hyeyoo

Hyeonggon Yoo

South Korea's space rocket Nuri launched

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

Hyeonggon Yoo

Reply to @ljs
@ljs @vbabka Can't even imagine what it was like before CoC was introduced.
2
0
1
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: