Khugepaged process consumes 100% of CPU core when using Mozilla's sofware

General system Applications
1

I’ve noticed that Mozilla products are triggering “khugepaged” process that consumes 100% of one CPU core. I’ve noticed that behavior with Thunderbird and Firefox.
This “khugepaged” process doesn’t start immediately after launching Mozilla’s software, it may start many hours after the application was run. I don’t know what triggers it to launch, but I’m 100% sure that closing Mozilla software will stop “khugepaged” from running. After re-opening the application “khugepaged” will return.
Once, in the case of Firefox, “khugepaged” returned and run continuously, but in the case of Thunderbird “khugepaged” returned for about a minute, then stopped for 10-15 minutes, and after that returned again for minute or two.
I can’t say when exactly this problem started to appear because I’m not actively using Mozilla software before, but for about two weeks it exist.

OS: EndeavourOS Linux x86_64
Host: ThinkPad X1 Carbon 6th
Kernel: 6.1.7-zen1-1-zen
Resolution: 1920x1080
DE: Plasma 5.26.5
CPU: Intel i7-8650U (8) @ 4.200GHz
GPU: Intel UHD Graphics 620
Memory: 11613MiB / 15867MiB

System logs and etc.
https://0x0.st/oh7d.txt

2

From what I can observe, this [khugepaged triggering occasionally and consuming 100% of cpu core] happens even without any mozilla software. And the khugepaged also exits after closing any application too not just mozilla.

Someone suggested it could be related to THP code change in Kernel 6.1

@anthony93 explained here already
If you still want to disable it try this answer on stackexchange

3

You can set transparent hugepages to only be used by applications that can actually make use of it and see if it helps using kernel cmdline option

transparent_hugepage=madvise