[   10.995085] nft (5259) used greatest stack depth: 12080 bytes left
[   54.056582] nft (12772) used greatest stack depth: 12016 bytes left
[   67.237178] nft (14798) used greatest stack depth: 11976 bytes left
[   67.297448] nft (14831) used greatest stack depth: 11952 bytes left