Re: refcount_warn_saturate WARNING (was: Re: cls_flower: Fix the behavior using port ranges with hw-offload)

From: Cong Wang
Date: Thu Dec 19 2019 - 15:50:28 EST


On Thu, Dec 19, 2019 at 2:12 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> I still see the below warning on m68k/ARAnyM during boot with v5.5-rc2
> and next-20191219.
> Reverting commit 8ffb055beae58574 ("cls_flower: Fix the behavior using
> port ranges with hw-offload") fixes that.
>
> As this is networking, perhaps this is seen on big-endian only?
> Or !CONFIG_SMP?
>
> Do you have a clue?
> I'm especially worried as this commit is already being backported to stable.
> Thanks!

I did a quick look at the offending commit, I can't even connect it to
any dst refcnt.

Do you have any more information? Like what happened before the
warning? Does your system use cls_flower filters at all? If so, please
share your tc configurations.

Thanks.