[   10.396393] nft (5189) used greatest stack depth: 12112 bytes left
[   54.901789] nft (13076) used greatest stack depth: 12096 bytes left
[   56.941038] nft (13451) used greatest stack depth: 12048 bytes left
[   59.360488] nft (13849) used greatest stack depth: 11856 bytes left