On 20/04/17 15:21, David Ahern wrote:
On 4/20/17 6:58 AM, Robert Shearman wrote:
David reported that doing the following:
ip li add red type vrf table 10
ip link set dev eth1 vrf red
ip addr add 127.0.0.1/8 dev red
ip link set dev eth1 up
ip li set red up
ping -c1 -w1 -I red 127.0.0.1
ip li del red
results in a hang with this message:
unregister_netdevice: waiting for red to become free. Usage count = 1
I think you misunderstood my comment. The above works fine today. There
is no bug with refcnts.
It breaks with your patches wanting to use a VRF device with the main
table (254).
That doesn't seem to match with my experience. I can reproduce this on
the net tree with the listed commands and the behaviour matches what I
see in the code.
Thanks,
Rob
