Nuno Silva [off-list ref] wrote:

The problem is in the QoS code. If I start ppp whithout the 

OK, this appears to be due to the changeset titled

[PKT_SCHED]: Refcount qdisc->dev for __qdisc_destroy rcu-callback

It adds a reference to dev.

I don't see any code that cleans up that reference when the dev goes
down.  So someone needs to add that similar to the code in net/core/dst.c.

Patrick, could you please have a look at this?

Thanks,
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