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SubjectRe: unregister_netdevice: waiting for eth0 to become free. Usage count = 1
Hi,

On Thu, Aug 10, 2017 at 11:12 AM, John Stultz <john.stultz@linaro.org> wrote:
> 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.

Does the following one-line fix make a difference?

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a640fbcba15d..c145a35763a0 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -141,7 +141,7 @@ static void rt6_uncached_list_del(struct rt6_info *rt)
struct uncached_list *ul = rt->rt6i_uncached_list;

spin_lock_bh(&ul->lock);
- list_del(&rt->rt6i_uncached);
+ list_del_init(&rt->rt6i_uncached);
spin_unlock_bh(&ul->lock);
}
}
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