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Date: Thu, 10 Aug 2017 11:12:11 -0700 From: John Stultz <john.stultz@...aro.org> To: Wei Wang <weiwan@...gle.com> Cc: Cong Wang <xiyou.wangcong@...il.com>, lkml <linux-kernel@...r.kernel.org>, Network Development <netdev@...r.kernel.org>, Linux USB List <linux-usb@...r.kernel.org>, "David S. Miller" <davem@...emloft.net>, Felipe Balbi <felipe.balbi@...ux.intel.com> Subject: Re: unregister_netdevice: waiting for eth0 to become free. Usage count = 1 On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang <weiwan@...gle.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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