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Date:      Mon, 22 Jun 2020 10:12:47 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Yasuhiro KIMURA <yasu@utahime.org>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: `shutdown -p now` fails to power off with VirtualBox UEFI boot
Message-ID:  <CANCZdfowwE%2BvxNa7k=tQhkJCVxV-sc=zSjwfNvgznNcA-tQjjA@mail.gmail.com>
In-Reply-To: <20200623.003808.2170454908846294820.yasu@utahime.org>
References:  <20200622.164523.492970231904065687.yasu@utahime.org> <20200622.191348.2299220192956341788.yasu@utahime.org> <CANCZdfqujHd2omS6G2AP7GOYdTOBVZf_a6yZ9Zj566kmpb5m0A@mail.gmail.com> <20200623.003808.2170454908846294820.yasu@utahime.org>

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On Mon, Jun 22, 2020 at 9:40 AM Yasuhiro KIMURA <yasu@utahime.org> wrote:

> From: Warner Losh <imp@bsdimp.com>
> Subject: Re: `shutdown -p now` fails to power off with VirtualBox UEFI boot
> Date: Mon, 22 Jun 2020 08:57:24 -0600
>
> > Does setting the tunable hw.efi.poweroff=0 help you?
>
> I add it to /boot/loader.conf and then `shutdown -p now` successfully
> powers off system.
>
> Does existence of this tunable mean that there are some UEFI
> implementations that have problem with power off functionality?
> (And VirtualBox is unfortunately one of such implementations?)
>

I believe so. However, I've not dived deeply enough into this problem to
understand if it is a bug in our code or theirs.

Warner


> ---
> Yasuhiro KIMURA
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