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From: Jan Beich <jbeich@FreeBSD.org>
To: Jan =?utf-8?Q?Kokem=C3=BCller?= <jan.kokemueller@gmail.com>
Cc: freebsd-hackers@freebsd.org
Subject: Re: Firefox 63 vs. sendmsg()
References: <pnzk-oufs-wny@FreeBSD.org>
 <844b824e-4463-82f4-a01d-5d398c4351e4@gmail.com>
Date: Thu, 19 Jul 2018 15:18:41 +0200
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Jan Kokem=C3=BCller <jan.kokemueller@gmail.com> writes:

>> Can someone help debug https://bugzilla.mozilla.org/show_bug.cgi?id=3D14=
75970#c7 ?
>> I'm not familar with socket code.
>
> Could it be related to this bug[1]?
> There is a demo program in another bug report[2] that still fails for me
> (running a recent -current, r334337).
>
> [1]: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D181741
> [2]: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215933

Indeed. Firefox 63 works fine after applying the patch in bug 181741.
I wonder, if "packet loss" issue is also responsible for IPC instability
in Firefox < 63 and Chromium.