Daniel Johnson - 2007-07-18

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Found same behavior in kernel v2.6.21.5 (bonding v3.1.2). Upgraded to kernel v2.6.22.1 (bonding v3.1.3) and the problem disappeared. Same kernel on another system has same problem, though. :( Work-around so far is to start bond with a low updelay (500), then run "sleep 2; echo 180000 > /sys/class/net/bond0/bonding/updelay" after enslaving the physical links.