On Wed, 29 Nov 2023 at 04:09, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > > The most interesting patch is the list iterator fix in the core by Maria > Yu, it took a while for me to realize what was going on there. That commit message still doesn't explain what the problem was. Why is p->state volatile there? It seems to be a serious locking bug if p->state can randomly change there, and the READ_ONCE() looks like a "this hides the problem" rather than an actual real fix. Linus