Harry (Hyeonggon) Yoo
Posts
535Following
101Followers
118- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- Reviewer for the Linux Slab & 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
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Dare Obasanjo
carnage4life@mas.to
Welcome to the cycle of generative AI making search worse.
Quora uses ChatGPT which hallucinates an answer to a nonsense question.
Google Search picks up this nonsense answer from Quora which has high page rank and treats it as an instant answer.
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Harry (Hyeonggon) Yoo
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Drew Fustini
pdp7@fosstodon.org@vegard did you bring the concurrency cheat sheet? It's great!
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Harry (Hyeonggon) Yoo
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K. Ryabitsev 🍁
monsieuricon
"Subscribing" to mailing lists via sourcing a pop3 mailbox from lore.kernel.org now works. Should be of particular interest to gmail users.
I'll document after some more initial testing.
I'll document after some more initial testing.
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Fun part of building a home server with a domain name is the public IP can change. I wrote a script updating DNS A record periodically because of this. This is not a perfect solution though; DNS propagation time takes some time. But it should be sufficient for my service.
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Harry (Hyeonggon) Yoo
hyeyoo
Edited 2 years ago
small progress on the kernel testing side project: I did setup LAVA instance in addition to Jenkins and made it publicly available.
it took few weeks due to issues with hardware :(
this is home server so can't provide excellent stability and uptime but here it is:
https://lava.kerneltesting.org
https://jenkins.kerneltesting.org
it took few weeks due to issues with hardware :(
this is home server so can't provide excellent stability and uptime but here it is:
https://lava.kerneltesting.org
https://jenkins.kerneltesting.org
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Harry (Hyeonggon) Yoo
hyeyoo
my jenkins VM was mysteriously shut down continuously without any log. I spent some time figuring out why, but it was the host's OOM killer that killed it. chrome tabs that I forgot to close was eating up 100% of the memory. fun ;)
but 32gib for a browser was too much? was it memory leak?
but 32gib for a browser was too much? was it memory leak?
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@kees Haha, will exploit writers be considering a different job after this? (but I guess they are way too creative though)
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@ljs lol I recall reading it in "Linux Kernel in a Nutshell" book and I was shocked in the same way
(picture taken from the book http://www.kroah.com/lkn/ under CC BY-SA 2.5)
(picture taken from the book http://www.kroah.com/lkn/ under CC BY-SA 2.5)
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@lkundrak cute! what's the material for printing?
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@vbabka It's not declared thrown away - but no one in the company needs my work, and there is no specific task nor requirement. And I can decide what to do.
So I asked if I'm allowed to contribute my work to upstream community and I was told "No, it's our company's property"
I'm not sure why they even hired (even if it's intern) me.
So I asked if I'm allowed to contribute my work to upstream community and I was told "No, it's our company's property"
I'm not sure why they even hired (even if it's intern) me.
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Harry (Hyeonggon) Yoo
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Kees Cook (old account)
kees@fosstodon.org
Edited 2 years ago
I'm really excited about making Use-After-Free exploits much harder in the #Linux #kernel.
CONFIG_RANDOM_KMALLOC_CACHES has landed:
https://git.kernel.org/linus/3c6152940584
CONFIG_SLAB_VIRTUAL is coming:
https://lore.kernel.org/lkml/20230915105933.495735-15-matteorizzo@google.com/
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