[   10.807635] nft (5223) used greatest stack depth: 12080 bytes left
[   60.517836] nft (13884) used greatest stack depth: 12016 bytes left
[   67.221756] nft (14762) used greatest stack depth: 11976 bytes left
[   71.072927] nft (15300) used greatest stack depth: 11824 bytes left