So I confirm previous kernels had a bug too in rollback_registered() The "single" list was left as is before exiting. default_device_exit_batch() seems OK, because the rtnl_unlock() acted as a barrier in this respect : devices were removed from dev_kill_list before exiting default_device_exit_batch() Following this mail, please find two patches. One from Linus to address bug introduced in commit 443457242beb6 (net: factorize sync-rcu call in unregister_netdevice_many) in 2.6.38-rc1 A second one to address old bugs, so that stable teams can fix previous kernels (2.6.33 and up) Offending commit was 9b5e383c11b08784 (net: Introduce unregister_netdevice_many()) Of course this second patch is also needed for current linux-2.6 Thanks -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>