Re: net: hang in unregister_netdevice: waiting for lo to become free
From: Cong Wang
Date: Tue Jan 30 2018 - 13:32:54 EST
On Tue, Jan 30, 2018 at 4:09 AM, Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote:
> Hello,
>
> The following program creates a hang in unregister_netdevice.
> cleanup_net work hangs there forever periodically printing
> "unregister_netdevice: waiting for lo to become free. Usage count = 3"
> and creation of any new network namespaces hangs forever.
Interestingly, this is not reproducible on net-next.