Hi Octavian, On 04/15/2011 10:53 AM, Frank Blaschka wrote: > Hi Octavian, > > your commit 443457242beb6716b43db4d62fe148eab5515505 introduced this regression. > I have reviewed the net device unregister code but did not understand it very well. > I have seen the problem only in combination with bonding. Can you give me some help > how to go on with this problem. I can reproduced it very easy on a single CPU > machine. > In this case rollback_registered_many iterates over the list of devs that initially has just one device in it. In a loop it calls call_netdevice_notifiers(NETDEV_UNREGISTER, dev) which triggers the bonding driver to call dev_close_many for the same device. That call to dev_close_many leads to the addition of the same device to the list over which rollback_registered_many is iterating. Consequently, netdev_unregister_kobject(dev) is called twice for the same device. Frank captured the result in his mail. Do you agree with my debugging results? Regards, Einar. -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
