After 25+ years of kernel development, I was finally forced to touch `mm/` and it was due to a nommu "issue":
https://lore.kernel.org/lkml/2026042334-acutely-unadorned-e05c@gregkh/

As @axboe said the other day, we aren't expecting a box of chocolates:

https://lore.kernel.org/r/[email protected]

but these past weeks have made me feel like someone owes a few of us kernel developers a bunch of whisky at the very least...
[PATCH] mm/gup: honour FOLL_PIN in NOMMU __get_user_pages_locked() - Greg Kroah-Hartman

@gregkh I'll take a whisky over a box of chocolates anyway ;-)

@gregkh Actually I can buy my own, what I'd really like is for us to kill nommu. It has zero reason to exist, and it's largely untested garbage.

Forget the booze, that's what I want.

@axboe @gregkh something @ljs would most likely agree with πŸ™‚ cc @vbabka
@Aissen @gregkh @ljs @vbabka As any sane person should! Honestly, I'm hope this will be the silver lining to the slew of mostly garbage LLM bug reports - yank the old and untested code from the kernel, not just nommu.
@axboe @gregkh @ljs @vbabka yes, I did read https://lwn.net/Articles/1068928/ ; it does seem bittersweet though.
Kernel code removals driven by LLM-created security reports

There are a number of ongoing efforts to remove kernel code, mostly from the networking subsyst [...]

LWN.net
@Aissen @axboe @gregkh @ljs @vbabka

bittersweet because people report bugs on features they don't use rather than fixing them and stepping up to help?
@hyeyoo @ljs @vbabka @gregkh @Aissen That's not bittersweet, that's just laziness. So much easier to run LLMs on code and report issues they often don't even understand, than it is to write a patch.These people don't care about the code, that's not why they are reporting the issues.
@axboe @ljs @vbabka @gregkh @Aissen

it's really sad that people do that.
what do these people care then?
@hyeyoo @ljs @vbabka @gregkh @Aissen "Look I found a bug, how great am I"
@axboe @ljs @vbabka @gregkh @Aissen

oh geez, that's not adding much value to the project :/

@hyeyoo @axboe @ljs @vbabka @gregkh @Aissen But it's adding a dominance signal!

Signal Standard Action Comment
───────────────────────────────────────────────────
SIGDOMINANCE Instinct Shriek Social dominance.
Chest-drumming may
be also accepted
in some domains.

*** SHRIEK! ***

@ptesarik @axboe @ljs @vbabka @gregkh @Aissen

see my dominance signal, a claude subscription!