Hello, I have the same problem and observe the same effect - an infinite loop within /etc/network/if-pre-up.d/ifenslave:
setup_master() { add_master early_setup_master setup_master <- Here it is. enslave_slaves setup_primary } Where setup_master calls itself infinetely. Commenting the setup_master I can get the bond to be up, but still have to enslave slaves myself (echoing into /sys/class/net/bond0/bonding/slaves). My config has a bond, which then has vlans (bond0.10) which are then part of bridges. But I doubt the problems comes from this complicates setup. Hope it helps somehow, Cheers. -- Tomasz bla Fortuna pgp: C009FC9BD59B22FE @ pgp.mit.edu www: http://bla.thera.be