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Date:      Mon, 19 Feb 2018 17:44:32 -0600
From:      Peter Lei <peter.lei@ieee.org>
To:        Kyle Evans <kevans@freebsd.org>, =?UTF-8?Q?Juan_Ram=c3=b3n_Molina_Menor?= <listjm@club.fr>
Cc:        freebsd-current@freebsd.org, dteske@freebsd.org
Subject:   Re: ACPI panic on boot with new Lua loader and other minor issues
Message-ID:  <b9460216-fbb8-1aee-690b-ec5b17618027@ieee.org>
In-Reply-To: <CACNAnaFNv5LwDv3Z2dgPe%2Bb%2B3La%2B%2B-4CPNECug5XCdaTT_uo3A@mail.gmail.com>
References:  <2AFF3AE4-8740-4776-9D8D-7D709EE051C6@gmail.com> <1b9e58fe-2616-b04b-13c2-fee78a33ad6e@club.fr> <CACNAnaFNv5LwDv3Z2dgPe%2Bb%2B3La%2B%2B-4CPNECug5XCdaTT_uo3A@mail.gmail.com>

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On 2/19/18 2:21 PM, Kyle Evans wrote:
> Hello!
>=20
> On Mon, Feb 19, 2018 at 8:21 AM, Juan Ram=C3=B3n Molina Menor <listjm@c=
lub.fr> wrote:
>> I have done a full build of r329555 to test the new Lua boot loader.
>>
>> Both the new and the old kernels panic after being loaded with:
>>
>> panic: running without device atpic requires a local APIC
>>
>> For reasons unknown, ACPI is off, as shown by David Wolfskill in a pre=
vious
>> message:
>> https://lists.freebsd.org/pipermail/freebsd-current/2018-February/0684=
97.html
>>
>> OK show hint.acpi.0.disabled
>> 1
>>
>> Setting ACPI to On resolves the issue.
>=20
> As David noted, this should actually Just Work (TM) now. Can you break
> into a loader prompt with just the forth loader and tell me what "show
> hint.acpi.0.rsdp" looks like?


This doesn't appear to "just work out-of-the-box" yet when EFI booting
amd64, as I still get the 'no local APIC' panic (I just tried @r329609).

Under EFI and lua loader, the following is set when breaking to prompt:
    hint.acpi.0.disabled=3D1
Under forth loader, this is not present/set.

In neither case is hint.acpi.0.rsdp present/set as that appears to get
set during the exec of the loaded kernel...

I've worked around the issue by adding hint.acpi.0.disabled=3D"0" to
loader.conf (or patching the amd64 efi loader code to explicitly clear
that hint).


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