On Fri, 23 Mar 2018 07:55:37 -0700 Eric Dumazet <eric.duma...@gmail.com> wrote:
> rcu grace period before freeing huge quantitites of pages is > problematic and could be used by syzbot to OOM the host. Okay. Adjusted code to empty ring "right-way" when driver calls destroy, and then only RCU delay/free the page_pool pointer and also free/empty ring for pages of any in-flight producers. -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
