Re: WARNING in refcount_sub_and_test

From: Dmitry Vyukov
Date: Fri Oct 27 2017 - 05:43:44 EST


On Fri, Oct 27, 2017 at 11:36 AM, Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote:
> On Fri, 2017-10-27 at 08:09 +0200, Dmitry Vyukov wrote:
>
>> Yes, I've noticed this one. It seems to happen on a first incoming
>> network connection (ssh/scp). I have not seen it before.
>
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=timers/core&id=52f737c2da40259ac9962170ce608b6fb1b55ee4
>
> ( Google-Bug-Id: 68003409 )

Good!
I've noticed that it does not happen on latest Linus tree, now I know why.