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From: Kyle Evans <kevans@freebsd.org>
Date: Thu, 9 May 2019 08:07:27 -0500
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Subject: Re: at SVN r347375, terminating/restarting openvpn on tap causes panic
To: Michael Butler <imb@protected-networks.net>
Cc: FreeBSD Current <freebsd-current@freebsd.org>
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On Thu, May 9, 2019 at 7:24 AM Michael Butler
<imb@protected-networks.net> wrote:
>
> Seems there's a lock or tuntap issue after recent changes. Restarting
> openvpn (configured to use /dev/tap) yields a panic as follows:
>

Ah, I knew I was forgetting something. =( Give this a shot:
https://people.freebsd.org/~kevans/etherdetach.diff

Thanks,

Kyle Evans