Posts
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106- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- Reviewer for the Linux Slab 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
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Check it out and smash the like button + subscribe at
https://www.youtube.com/watch?v=m9dZkRwWEj8
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Hope someone finds this useful. http://lore.kernel.org/all/3b09bf98-9bd4-465b-b9c5-5483a6261dc7%40suse.cz
The youtube videos: https://www.youtube.com/watch?v=m9dZkRwWEj8
https://youtu.be/OvLEx6fPVrg
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K. Ryabitsev đ
monsieuriconx.x.x.x - - [10/Nov/2024:00:02:37 +0000] "GET / HTTP/1.1" 301 162 "-" "okhttp/4.9.0"
You know whatâs interesting about this log line? It repeats 56,686,963 times in www.kernel.org logs for yesterday, across 4 nodes. Thatâs about 700 times a second, and this has been going on for months.
These requests arenât intentionally malicious â they issue a simple GET /, receive their 301 redirect, and terminate the connection. From what I can tell, this is some kind of appliance or software installed on mobile clients that uses âcan I reach www.kernel.orgâ as a network test.
This wouldnât be that big of a deal â a single plaintext âGET /â that triggers an immediate 301 is very cheap for us to generate, but the number of these requests has been steadily growing.
If you have any idea what this is and how to make it stop, please reach out?
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pope of nope đșđŠ
lkundrak@metalhead.club*reading a toot*
"I got laid..."
*oh good for you*
"...off"
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Phoronix
phoronix@masto.aiLazy Preemption "PREEMPT_LAZY" Slated To Land In Linux 6.13
Yet another exciting feature expected to be merged for the upcoming Linux 6.13 cycle is the introduction of the Lazy Preemption model...
https://www.phoronix.com/news/Linux-6.13-Lazy-Preemption
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Show content
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Karen Sandler
karen@floss.socialOutreachy is getting squeezed financially from reduced funding related to diversity programs and reduced funding for open source orgs. Can you help us spread the word about how important the program is and help us connect to folks who might contribute funding?
https://www.outreachy.org/blog/2024-08-14/outreachy-needs-your-help/
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Harry (Hyeonggon) Yoo
hyeyooForget very often to differentiate public and private ones at the first time.
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Harry (Hyeonggon) Yoo
hyeyoo
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Not going to dictate to you who to vote for but obviously I think there's only one sane choice and she's called Kamala Harris.
Even if you don't much like her, her party, or her policies, the alternative is so deeply shit and depressing just swallow your pride and do it.
If you do like her/her party/her policies then vote for her.
(yeah I lied I am dictating the choice sorry not sorry)
But either way GO AND VOTE!
Trump will concede the war in Ukraine to Russia, and if they win there, next he will attack a NATO country. Think about that. The people there fight for all of us.
The (alleged) greatest fraudster in modern history (+ alleged traitor to his own country and allegedly regularly in contact with Putin) Musk will be given a total reprieve and control of part of the US govt.
And this of course is far from the only issue that utter orange moron will wreak havoc upon.
GET UP.
GO VOTE.
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Harry (Hyeonggon) Yoo
hyeyooIn Korea this kind of song is called a 'banned song' for SAT because students can't focus on studying :P
https://www.youtube.com/watch?v=ekr2nIex040
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Harry (Hyeonggon) Yoo
hyeyooA note for the next time I forget:
Context is switched from one kernel context to another. When a user process is going to be rescheduled, it first switches from user context to its kernel context after storing the registers on the kernel stack (pt_regs) due to a scheduler tick.
When switching between kernel contexts, only callee-saved registers are restored (from cpu_context in thread_struct), as the other registers should have been stored on the kernel stack (by the calling convention) before calling __switch_to()->cpu_switch_to() (on ARM64).
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