On Mon, 7 Sep 2020 00:14:51 +0300 Nikolay Aleksandrov wrote: > On 9/7/20 12:01 AM, Jakub Kicinski wrote: > > On Sat, 5 Sep 2020 11:24:01 +0300 Nikolay Aleksandrov wrote: > >> We need to be able to retransmit group-specific and group-and-source > >> specific queries. The new timer takes care of those. > > > > What guarantees that timer will not use pg after free? Do timer > > callbacks hold the RCU read lock? > > See the last patch, it guarantees no entry timer will be used when it's freed. Ack.