Re: [PATCH 00/17] v3 net generic subsystem refcount conversions

From: Eric Dumazet
Date: Mon Jul 03 2017 - 06:31:30 EST

On Mon, 2017-07-03 at 09:57 +0000, Reshetova, Elena wrote:

> Thank you very much for the report! This is an underflow (dec/sub from
> zero) that is reported by WARNING.
> I guess it is unlikely that actual code underflows, so the most
> probable cause is that it attempted to do refcount_inc/add() from
> zero, but then failed.
> However in that case you should have seen another warning on
> refcount_inc() somewhere earlier. That one is actually the one I need
> to see to track the root cause.
> Could you tell me how do you arrive to the below output? Boot in what
> config/etc.
> I can try to reproduce to debug further.

I sent this fix :