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Date: Thu, 19 Jul 2018 17:31:44 -0700 (PDT)
From: Don Lewis <truckman@FreeBSD.org>
Subject: Re: Firefox 63 vs. sendmsg()
To: Jan Beich <jbeich@FreeBSD.org>
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On 19 Jul, Jan Beich wrote:
> Jan Kokem=FCller <jan.kokemueller@gmail.com> writes:
>=20
>>> Can someone help debug https://bugzilla.mozilla.org/show_bug.cgi?id=3D1=
475970#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
>=20
> 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.

I've been having terrible stability problems with Firefox on my
11.2-STABLE amd64 machine since upgrading to version 61.  See:
  https://bugzilla.mozilla.org/show_bug.cgi?id=3D1476130
I applied this patch:
  https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D168943&action=3Ddif=
f
after tweaking it a bit so that all chunks would apply.  It's too soon
to tell for sure, but this fix appears promising.