[   51.508203] nft (12710) used greatest stack depth: 12056 bytes left
[   53.448122] nft (13083) used greatest stack depth: 12048 bytes left
[   58.153487] nft (13852) used greatest stack depth: 11928 bytes left
[   65.164775] nft (14727) used greatest stack depth: 11832 bytes left