netdev - Re: TCP sender stuck in persist despite peer advertising non-zero window

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Message-ID: <CADVnQymc0cVqfBmRVeERrrTOSJOpScdz8_HCU6yDWNREz9TG3g@mail.gmail.com>
Date:   Fri, 16 Oct 2020 13:54:41 -0400
From:   Neal Cardwell <ncardwell@...gle.com>
To:     Apollon Oikonomopoulos <apoikos@...sg.gr>
Cc:     Yuchung Cheng <ycheng@...gle.com>, Netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>
Subject: Re: TCP sender stuck in persist despite peer advertising non-zero window

On Fri, Oct 16, 2020 at 12:57 PM Apollon Oikonomopoulos
<apoikos@...sg.gr> wrote:
>
> Neal Cardwell <ncardwell@...gle.com> writes:
> > On Thu, Oct 15, 2020 at 6:12 PM Apollon Oikonomopoulos <apoikos@...sg.gr> wrote:
> >> Neal, would it be possible to re-send the patch as an attachment? The
> >> inlined version does not apply cleanly due to linewrapping and
> >> whitespace changes and, although I can re-type it, I would prefer to test
> >> the exact same thing that would be merged.
> >
> > Sure, I have attached the "git format-patch" format of the commit. It
> > does seem to apply cleanly to the v4.9.144 kernel you mentioned you
> > are using.
> >
> > Thanks for testing this!
>
> We are now running the patched kernel on the machines involved. I want
> to give it some time just to be sure, so I'll get back to you by
> Thursday if everything goes well.

Great. Thanks, Apollon, for testing this!

Thanks, Eric. I will include the link you suggested in the next rev of
the patch.

thanks,
neal