On Tue, 14 Sep 2021 19:45:08 +0800 Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote: > Isolating a free page in an isolated pageblock is expected to always work > as watermarks don't apply here. But if __isolate_free_page() failed, due > to condition changes, the page will be left on the free list. And the page > will be put back to free list again via __putback_isolated_page(). This may > trigger VM_BUG_ON_PAGE() on page->flags checking in __free_one_page() if > PageReported is set. Or we will corrupt the free list because list_add() > will be called for pages already on another list. Add a VM_WARN_ON() to > complain about this change. Are you able to identify a Fixes: here? Is a cc:stable justified?
