[   29.207715][  T240] bond0: (slave eth0): making interface the new active one
[   29.208522][  T240] bond0: (slave eth0): Enslaving as an active interface with an up link
[   29.218657][  T240] ip (240) used greatest stack depth: 23936 bytes left
[   34.577645][  T244] bond0: (slave eth0): Releasing backup interface
[   34.961964][  T245] ip (245) used greatest stack depth: 23688 bytes left
[   35.652556][  T247] bond0: (slave eth0): Enslaving as an active interface with an up link
[   40.670255][   T11] bond0: (slave eth0): Releasing backup interface