From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oleksandr Natalenko <oleksandr@natalenko.name>
Subject: Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c
Date: Mon, 18 Sep 2017 20:04:00 +0200
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Cc: Neal Cardwell <ncardwell@google.com>,
        "David S. Miller" <davem@davemloft.net>,
        Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        Netdev <netdev@vger.kernel.org>
To: Yuchung Cheng <ycheng@google.com>
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On pond=C4=9Bl=C3=AD 18. z=C3=A1=C5=99=C3=AD 2017 20:01:42 CEST Yuchung Che=
ng wrote:
> Yes since it is disabled in the upstream by default. Although you can
> experiment FACK enabled additionally.

OK.

> Do we know the crash you first experienced is tied to this issue?

No, unfortunately. I wasn't able to re-create it again, so lets focus on=20
tcp_fastretrans_alert warning only.