On Fri, 9 Jul 2021 17:05:59 +0800 Yang Huan <link@xxxxxxxx> wrote: > The problem is caused by set_page_owner alloc memory to save stack with > GFP_KERNEL in local_riq disabled. > So, we just can't assume that alloc flags should be same with new page, > let's split it. But in most situation, same is ok, in alloc_pages_bulk, > input GFP_ATOMIC when prep_new_pages Please more fully describe the bug which is being fixed. A link to the sysbot report would be helpful. I assume there was a stack backtrace available? Seeing the will help others to understand the bug. And if you are able to identify the patch which introduced the bug, a Fixes: tag would be helpful as well. Thanks.