On Sun, 21 Nov 2021, Wonhyuk Yang wrote: > 1) c->cpu_slab->page is unfrozen and frozen by another cpu. (is it possible?) Yes. > In the first case, cpu_slab structure can be different. But updating > freelist isn't a problem. It is a problem because the update can occur on a different processor without the TID which can race with another update on another processor.
