Public bug reported: Here is the reproducer:
ip netns add foo ip -n foo link add dummy1 type dummy ip -n foo link add dummy2 type dummy modprobe bonding ip -n foo link add bond1 type bond ip -n foo link set dev bond1 down ip -n foo addr add 10.10.10.1/24 dev bond1 ip -n foo link set dev bond1 up ip -n foo link set dummy1 master bond1 ip -n foo link set dummy2 master bond1 ip -n foo link set bond1 mtu 1540 # Move slaves to init_net ip -n foo link set dummy1 netns 1 ip -n foo link set dummy2 netns 1 # idev are still in netns foo for dummy interfaces: ip netns exec foo ls /proc/sys/net/ipv4/conf/ ip netns exec foo ls /proc/net/dev_snmp6/ ip netns del foo dmesg The bug has been fixed upstream by this patch: f51048c3e07b ("bonding: avoid NETDEV_CHANGEMTU event when unregistering slave") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/bonding?id=f51048c3e07b ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1704102 Title: bonding: stack dump when unregistering a netdev To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704102/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs