Both 'iptables' and 'ip*tables-restores' sleep and wait until the lock is released if no 'wait' option. If 'wait' option is set, it wait for the amount of time instructed and stop waiting.
I think the printed message make more sense now : # time cat /etc/rules.v4 | iptables-restore -c Another app is currently holding the xtables lock; still -9s 0us time ahead to have a chance to grab the lock... .... # time cat /etc/rules.v4 | iptables-restore -c -w 2 Another app is currently holding the xtables lock. Stopped waiting after 2s. # time cat /etc/rules.v4 | ip6tables-restore -c Another app is currently holding the xtables lock; still -9s 0us time ahead to have a chance to grab the lock... .... # time cat /etc/rules.v4 | ip6tables-restore -c -w 2 Another app is currently holding the xtables lock. Stopped waiting after 2s. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1791958 Title: iptables-restore is missing -w option To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iptables/+bug/1791958/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
