[    1.977101] nft (259) used greatest stack depth: 12456 bytes left
[   21.200206] ip (2526) used greatest stack depth: 12392 bytes left
[   87.210612] ip (9022) used greatest stack depth: 12296 bytes left
[  111.988080] ip (15076) used greatest stack depth: 12216 bytes left
[  185.678471] ip (27831) used greatest stack depth: 12200 bytes left