Good finding. So it is a known kernel bug and it won't get fixed in that
kernel version. :(
>From OVS point of view, the problem is, if such bug exists in kernel, it
prevents ovs-vswitchd to be killed (even by SIGKILL) because the process is
in system call which got blocked because of the kernel bu
Hi:
Adding correct ovs-discuss ML. I did get a chance to take a look on it a
bit. I think this is the bug in 4.4.0-104-generic kernel on ubuntu 16.04 as
its being discussed on ubuntu forum
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 where it can
be hit all of a sudden as per the