On Wed, 10 Jan 2024, David Wang wrote: > I confirmed this on 6.7 that this was introduced by commit > 28628fa952fefc7f2072ce6e8016968cc452b1ba with following changes: > > static inline void > @@ -1397,6 +1394,9 @@ static int ip_set_swap(struct sk_buff *skb, const struct nfnl_info *info, > ip_set(inst, to_id) = from; > write_unlock_bh(&ip_set_ref_lock); > > + /* Make sure all readers of the old set pointers are completed. */ > + synchronize_rcu(); > + > return 0; > } > > synchronize_rcu causes the delay, and its usage here is very confusing, > there is no reclaimer code after it. As I'm seeing just the end of the discussion, please send a full report of the problem and how to reproduce it. Best regards, Jozsef -- E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlecsik.jozsef@xxxxxxxxx PGP key : https://wigner.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics H-1525 Budapest 114, POB. 49, Hungary
