** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Tags added: kernel-da-key
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https://bugs.launchpad.net/bugs/1704102
Title:
bonding: stack dump when unregistering a netdev
Status in linux package in Ubuntu:
Triaged
Bug description:
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
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