Messages in this thread | | | From | Eric Dumazet <> | Date | Tue, 14 Mar 2023 09:02:56 -0700 | Subject | Re: BUG: selftest/net/tun: Hang in unregister_netdevice |
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On Tue, Mar 14, 2023 at 9:01 AM Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr> wrote:
> After a while, kernel message start looping: > > kernel:unregister_netdevice: waiting for tap0 to become free. Usage count = 3 > > Message from syslogd@pc-mtodorov at Mar 14 16:57:15 ... > kernel:unregister_netdevice: waiting for tap0 to become free. Usage count = 3 > > Message from syslogd@pc-mtodorov at Mar 14 16:57:24 ... > kernel:unregister_netdevice: waiting for tap0 to become free. Usage count = 3 > > Message from syslogd@pc-mtodorov at Mar 14 16:57:26 ... > kernel:unregister_netdevice: waiting for tap0 to become free. Usage count = 3 > > This hangs processes until very late stage of shutdown. > > I can confirm that CONFIG_DEBUG_{KOBJECT,KOBJECT_RELEASE}=y were the only changes > to .config in between builds. > > Best regards, > Mirsad >
Try adding in your config
CONFIG_NET_DEV_REFCNT_TRACKER=y CONFIG_NET_NS_REFCNT_TRACKER=y
Thanks.
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