netdev - Re: TPROXY + Attempt to release TCP socket in state 1

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Date:   Sat, 9 Jul 2022 10:05:43 +0200
From:   Eric Dumazet <edumazet@...gle.com>
To:     netdev <netdev@...r.kernel.org>
Cc:     Michelle Bies <mimbies@...look.com>
Subject: Re: TPROXY + Attempt to release TCP socket in state 1

On Sat, Jul 9, 2022 at 8:41 AM Willy Tarreau <w@....eu> wrote:
>
> Hi,
>
> On Sat, Jul 09, 2022 at 06:14:14AM +0000, Michelle Bies wrote:
> > Hi Eric
> > unfortunately, nobody response to my problem :(
> > Did I report my problem to the right mailing list?
>
> You sent it only 4 days ago!

As a matter of fact, email did not reach the list because it had html format.

> As you might have noticed you're not the
> only one to request help, code reviews or anything that requires time
> from only a few people. What progress have you made on your side on
> the analysis of this problem in during this time, that you could share
> to save precious time to those who are going to help you, and to make
> your issue more interesting to analyse than other ones ?
>
> Also, I'm seeing that your kernel is tainted by an out-of-tree module:
>
> > >   CPU: 5 PID: 0 Comm: swapper/5 Tainted: GO 5.4.181+ #9
>                                              ^^
>
> Most likely it's this "xt_geoip" module but it may also be anything
> else I have not spotted in your dump. Have you rechecked without it ?
> While unlikely to be related, any out-of-tree code must be handled
> with extreme care, as their impact on the rest of the kernel remains
> mostly unknown, so they're the first ones to disable during
> troubleshooting.
>
> > > My current kernel is 5.4 and these are my iptables config:
>
> Please always mention the exact version in reports. I've seen "5.4.181+"
> in your dump, which means 5.4.181 plus extra patches. Have you tried
> again without them ?
>
> Hoping this helps,
> Willy