netdev - Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp

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Date:   Mon, 18 Sep 2017 20:04:00 +0200
From:   Oleksandr Natalenko <oleksandr@...alenko.name>
To:     Yuchung Cheng <ycheng@...gle.com>
Cc:     Neal Cardwell <ncardwell@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

On pondělí 18. září 2017 20:01:42 CEST Yuchung Cheng 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 
tcp_fastretrans_alert warning only.