RT-AC68U with fw 3.0.0.4.380.3831 - log messages

[wouterv]

My RT-AC68U with firmware 3.0.0.4.380.3831 now and then shows the following log messages:

Oct 22 16:29:37 kernel: * Make sure sizeof(struct sw_struct)=160 is consistent
Oct 22 16:29:38 kernel: sizeof forward param = 160
Oct 22 16:30:10 kernel: Stop the IPS/AppID engine...
Oct 22 16:30:10 rc_service: bwdpi_check 453:notify_rc start_firewall
Oct 22 16:30:11 start_nat_rules: apply the nat_rules(/tmp/nat_rules_vlan2_vlan2)!

This either appears spontaneous, or as result of just going through the different settings without making changes (but I am not able to reproduce an action that results in the messages).
Does any know why these messages appear and what they tell?

 

[wouterv]

The messages are the result of the following:
Open the menu item Adaptive QoS results in:

Oct 23 10:57:08 kernel: * Make sure sizeof(struct sw_struct)=160 is consistent
Oct 23 10:57:08 kernel: sizeof forward param = 160

And leaving the page results in the other messages:

Oct 23 10:58:10 kernel: Stop the IPS/AppID engine...
Oct 23 10:58:11 rc_service: bwdpi_check 453:notify_rc start_firewall
Oct 23 10:58:11 start_nat_rules: apply the nat_rules(/tmp/nat_rules_vlan2_vlan2)!

So, just looking at the default Adaptive QoS page/Bandwidth page causes the messages.
Still wondering why.