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Message-ID: <1499077817.1462.8.camel@edumazet-glaptop3.roam.corp.google.com>
Subject: Re: [PATCH 00/17] v3 net generic subsystem refcount conversions
From: Eric Dumazet <eric.dumazet@gmail.com>
To: "Reshetova, Elena" <elena.reshetova@intel.com>
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Date: Mon, 03 Jul 2017 03:30:17 -0700
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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 : 

https://patchwork.ozlabs.org/patch/783389/

Thanks.