[Bug 256657] [tcp] RACK unsuitable for connecting to mysql via network socket on stable/13

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 22 Jun 2021 18:18:57 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256657

--- Comment #23 from Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> ---
(In reply to Michael Tuexen from comment #22)
Thanks for the clue. We should figure it out soon. There is still a hope I will
be able to renew my Netflix subscription and watch it without issues during
Christmas if we are successful enough with spotting this issue ;)

Getting back to the point, I have enabled TCP Black Box logging following this
description: https://github.com/Netflix/tcplog_dumper.
I am not using BBR but RACK, perhaps it works with RACK as well since I have
caught some data which I will share but I am not willing to disclose it
publicly.
I will send a link to the pcap file in a private email message.

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