On Fri, May 12 2023 at 19:57, Tetsuo Handa wrote: > On 2023/05/12 12:44, Andrew Morton wrote: >> On Thu, 11 May 2023 22:47:32 +0900 Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote: >> >>> syzbot is reporting lockdep warning in fill_pool(), for GFP_ATOMIC is >>> (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) which wakes up kswapd. >>> Since fill_pool() might be called with arbitrary locks held, >>> fill_pool() should not assume that holding pgdat->kswapd_wait is safe. https://lore.kernel.org/lkml/871qjldbes.ffs@tglx/
