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Re: unregister_netdevice: waiting for eth0 to become free. Usage count = 1

From John Stultz <john.stultz@linaro.org>
Newsgroups linux.kernel
Subject Re: unregister_netdevice: waiting for eth0 to become free. Usage count = 1
Date 2017-08-10 20:20 +0200
Message-ID <ud0dQ-Jr-17@gated-at.bofh.it> (permalink)
References (3 earlier) <ucITE-5Z7-15@gated-at.bofh.it> <ucJG1-6yK-1@gated-at.bofh.it> <ucKsq-768-11@gated-at.bofh.it> <ucKC5-79t-1@gated-at.bofh.it> <ucOw2-1gs-13@gated-at.bofh.it>
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On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang <weiwan@google.com> wrote:
> Hi John,
>
> Is it possible to try the attached patch?

Thanks so much for the quick turn around!

So I dropped all the reverts you suggested, and applied this one
against 4.13-rc4, but I'm still seeing the problematic behavior.

> I am not sure if it actually fixes the issue. But I think it is worth a try.
> Also, could you get me all the ipv6 routes when you plug in the usb
> using "ip -6 route show"? (If you have multiple routing tables
> configured, could you dump them all?)

# ip -6 route show
2601:1c2:1002:83f0::/64 dev eth0  proto kernel  metric 256  expires
345599sec pref medium
fe80::/64 dev eth0  proto kernel  metric 256  pref medium
default via fe80::200:caff:fe11:2233 dev eth0  proto ra  metric 1024
expires 1799sec hoplimit 64 pref medium


After unplugging the device (and getting the unregister_netdevice errors):
# ip -6 route show
#


thanks
-john

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Thread

unregister_netdevice: waiting for eth0 to become free. Usage count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-07 23:10 +0200
  Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-07 23:20 +0200
    Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Cong Wang <xiyou.wangcong@gmail.com> - 2017-08-10 01:40 +0200
      Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-10 01:50 +0200
        Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Wei Wang <weiwan@google.com> - 2017-08-10 02:40 +0200
          Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-10 02:50 +0200
          Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-10 03:30 +0200
            Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Wei Wang <weiwan@google.com> - 2017-08-10 03:40 +0200
              Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Wei Wang <weiwan@google.com> - 2017-08-10 07:50 +0200
                Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 John Stultz <john.stultz@linaro.org> - 2017-08-10 20:20 +0200
                Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Wei Wang <weiwan@google.com> - 2017-08-10 22:10 +0200
                Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Cong Wang <xiyou.wangcong@gmail.com> - 2017-08-11 18:50 +0200
                Re: unregister_netdevice: waiting for eth0 to become free. Usage  count = 1 Wei Wang <weiwan@google.com> - 2017-08-11 19:30 +0200

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