Posts
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Following
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Followers
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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
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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off and off
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@ljs @cwayne @vbabka
Don't forget to mention me when discussing
g dumb idiots
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@kernellogger @ljs

lol there are already so many obstacles in this driver's way
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@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 ;)
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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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Edited 1 year ago
@ljs @ptesarik Yes! "might be the case" was was not clear ;)
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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.
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Starting to like Joan's drawings more
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TIL: NUMA configuration and distance matrix are parsed from device trees, ACPI, or dummy configuration is used.
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Edited 1 year ago
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@ptesarik @ljs

When do usable PFNs (for which pfn_valid() is false) exist?
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LMAO probably should launch more like the north one?
(...learning how to make a joke...)
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South Korea's space rocket Nuri launched

https://en.yna.co.kr/view/AEN20230524009656320
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@ljs @vbabka Can't even imagine what it was like before CoC was introduced.
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Edited 1 year ago
@ljs when does it matter? the only thing I know about it is that the kernel does not have struct page when pfn_valid() is false.
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Edited 1 year ago
@ljs Feeling much better to hear that, thank you! I need to be stronger ;)
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Edited 1 year ago
seems I made a mistake,
want to be more wise and strong!
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Edited 1 year ago
@ljs My mind, thoughts, and process of reasoning are easily broken too :)
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