[    3.284578] tls (450) used greatest stack depth: 12632 bytes left
[    3.402651] tls (454) used greatest stack depth: 12568 bytes left
[    6.077431] tls (607) used greatest stack depth: 12440 bytes left
[    6.099707] tls (609) used greatest stack depth: 12416 bytes left
[   36.103969] tls (1671) used greatest stack depth: 12360 bytes left