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Date:      Sun, 6 Oct 2024 21:39:12 +0200
From:      Stefan Hegnauer <stefan.hegnauer@gmx.ch>
To:        Warner Losh <imp@bsdimp.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: APU1 bricked on stable/14 - solved
Message-ID:  <d5d49760-35a1-45db-940b-5e4cda33a206@gmx.ch>
In-Reply-To: <f12072f3-3b4e-4e63-a91b-802d59a0e873@gmx.ch>
References:  <feaff803-ae93-4e9b-a8e6-1498d7b07b69@gmx.ch> <CANCZdfqZ_byx5aQsybVDriitWezTL43ix7Vajh-i1DKPRtg_7g@mail.gmail.com> <f12072f3-3b4e-4e63-a91b-802d59a0e873@gmx.ch>

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On 06.10.2024 21:14, Stefan Hegnauer wrote:
> On 06.10.2024 15:47, Warner Losh wrote:
>>
>>
>> On Sun, Oct 6, 2024 at 6:35=E2=80=AFAM Stefan Hegnauer
>> <stefan.hegnauer@gmx.ch> wrote:
>>
>>     I have a few pc-engines APU1 appliances running in headless mode
>>     under
>>     Nanobsd. Maintenance is by means of=C2=A0 direct COM port connectio=
n.
>>     After a recent update a few weeks back I was not able to connect
>>     by COM
>>     port anymore - console output and input went away after booting and
>>     before single- or multi-user mode would start. Even re-flashing the
>>     SDcard with a fresh image did not help.
>>
>>     After some longish trials and errors it turned out that both
>>     - commit 74b9fc7a 'amd64 GENERIC: Switch uart hints from "isa" to
>>     "acpi"' as well as
>>     - commit 4ba4cfaf 'acpi: Narrow workaround for broken interrupt
>>     settings
>>     on x86'
>>     broke things for me. Restoring hints and setting
>>     hw.acpi.override_isa_irq_polarity=3D1 in /boot/loader.conf.local
>>     restored
>>     working order.
>>
>>     I agree that APU1 is EOL, however I would have expected an entry to
>>     UPDATING for such a POLA violation.
>>
>>
>> Likely, but really really old gear like this is going to hit edge
>> cases that
>> developers haven't seen. The hint thing wasn't though to actually
>> negatively
>> affect any deployed hardware since it dealt with details that changed
>> 15 or
>> 20 years ago...
>>
>> Looks like the APU1 used coreboot which at the time was trailing
>> adaptation
>> of ACPI, so it makes sense... I knew that Soekris boxes had issues,
>> but they
>> are another 5 or 10 years older than the APUs and mine sadly isn't
>> operational.
>>
>> So I can write a better UPDATING entry, can you share with me the dmesg
>> from both APU1 and APU2?
>>
>> Warner
>>
>>     Note that pc-engines APU2 models are not affected as the BIOS ACPI
>>     tables contain correct UART descriptions.
>>
>>     - Stefan
>>
> Warner: thanks for the quick reply. Not so really, really old in my
> view - the BIOS=C2=A0is from ~August 2022 (APU1). And yes, it uses coreb=
oot:
> =C2=A0=C2=A0=C2=A0 PC Engines apu1
> =C2=A0=C2=A0=C2=A0 coreboot build 20220822
> =C2=A0=C2=A0=C2=A0 BIOS version v4.17.0.3
> =C2=A0=C2=A0=C2=A0 SeaBIOS (version rel-1.16.0.1-0-g77603a32)
>
> From verbose boot, dmesg -a:
> - APU1, original/faulty from today:
> https://hegnauer.selfhost.eu/web/computing/apu1c4_3mdeb_v4_17_0_3_std.tx=
t
> - APU1, fixed in loader.conf.local:
> https://hegnauer.selfhost.eu/web/computing/apu1c4_3mdeb_v4_17_0_3_fixed.=
txt
> - APU2 (has no problems):
> https://hegnauer.selfhost.eu/web/computing/apu2d4_3mdeb_v4_19_0_1.txt
>
> Let me know if you need additional information.
>
> - Stefan

For the record, APU1 is
 =C2=A0=C2=A0=C2=A0 root@stratum:~ # freebsd-version ; uname -a
 =C2=A0=C2=A0=C2=A0 14.1-STABLE
 =C2=A0=C2=A0=C2=A0 FreeBSD stratum.localnet 14.1-STABLE FreeBSD 14.1-STAB=
LE
stable/14-n269015-013d817b5393 STRATUM amd64

and APU2:
 =C2=A0=C2=A0=C2=A0 root@apupf:~ # freebsd-version ; uname -a
 =C2=A0=C2=A0=C2=A0 14.1-STABLE
 =C2=A0=C2=A0=C2=A0 FreeBSD apupf.localnet 14.1-STABLE FreeBSD 14.1-STABLE
stable/14-n269015-013d817b5393 APUPF amd64



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    On 06.10.2024 21:14, Stefan Hegnauer wrote:<br>
    <blockquote type=3D"cite"
      cite=3D"mid:f12072f3-3b4e-4e63-a91b-802d59a0e873@gmx.ch">
      <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUT=
F-8">
      <font face=3D"monospace">On 06.10.2024 15:47, Warner Losh wrote:<br>
      </font>
      <blockquote type=3D"cite"
cite=3D"mid:CANCZdfqZ_byx5aQsybVDriitWezTL43ix7Vajh-i1DKPRtg_7g@mail.gmail=
.com">
        <meta http-equiv=3D"content-type"
          content=3D"text/html; charset=3DUTF-8">
        <div dir=3D"ltr">
          <div dir=3D"ltr"><font face=3D"monospace"><br>
            </font></div>
          <font face=3D"monospace"><br>
          </font>
          <div class=3D"gmail_quote">
            <div dir=3D"ltr" class=3D"gmail_attr"><font face=3D"monospace"=
>On
                Sun, Oct 6, 2024 at 6:35=E2=80=AFAM Stefan Hegnauer &lt;<a
                  href=3D"mailto:stefan.hegnauer@gmx.ch"
                  moz-do-not-send=3D"true" class=3D"moz-txt-link-freetext"=
>stefan.hegnauer@gmx.ch</a>&gt;
                wrote:<br>
              </font></div>
            <blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);p=
adding-left:1ex"><font
                face=3D"monospace">I have a few pc-engines APU1 appliances
                running in headless mode under<br>
                Nanobsd. Maintenance is by means of=C2=A0 direct COM port
                connection.<br>
                After a recent update a few weeks back I was not able to
                connect by COM<br>
                port anymore - console output and input went away after
                booting and<br>
                before single- or multi-user mode would start. Even
                re-flashing the<br>
                SDcard with a fresh image did not help.<br>
              </font> <font face=3D"monospace"><br>
                After some longish trials and errors it turned out that
                both<br>
                - commit 74b9fc7a 'amd64 GENERIC: Switch uart hints from
                "isa" to<br>
                "acpi"' as well as<br>
                - commit 4ba4cfaf 'acpi: Narrow workaround for broken
                interrupt settings<br>
                on x86'<br>
                broke things for me. Restoring hints and setting<br>
                hw.acpi.override_isa_irq_polarity=3D1 in
                /boot/loader.conf.local restored<br>
                working order.<br>
              </font> <font face=3D"monospace"><br>
                I agree that APU1 is EOL, however I would have expected
                an entry to<br>
                UPDATING for such a POLA violation.<br>
              </font></blockquote>
            <div><font face=3D"monospace"><br>
              </font></div>
            <div><font face=3D"monospace">Likely, but really really old
                gear like this is going to hit edge cases that</font></div=
>
            <div><font face=3D"monospace">developers haven't seen. The
                hint thing wasn't though to actually negatively</font></di=
v>
            <div><font face=3D"monospace">affect any deployed hardware
                since it dealt with details that changed 15 or</font></div=
>
            <div><font face=3D"monospace">20 years ago...</font></div>
            <div><font face=3D"monospace"><br>
              </font></div>
            <div><font face=3D"monospace">Looks like the APU1 used
                coreboot which at the time was trailing adaptation</font><=
/div>
            <div><font face=3D"monospace">of ACPI, so it makes sense... I
                knew that Soekris boxes had issues, but they</font></div>
            <div><font face=3D"monospace">are another 5 or 10 years older
                than the APUs and mine sadly isn't operational.</font></di=
v>
            <div><font face=3D"monospace"><br>
              </font></div>
            <div><font face=3D"monospace">So I can write a better UPDATING
                entry, can you share with me the dmesg</font></div>
            <div><font face=3D"monospace">from both APU1 and APU2?</font><=
/div>
            <div><font face=3D"monospace"><br>
              </font></div>
            <div><font face=3D"monospace">Warner</font></div>
            <div><font face=3D"monospace">=C2=A0</font></div>
            <blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);p=
adding-left:1ex"><font
                face=3D"monospace"> Note that pc-engines APU2 models are
                not affected as the BIOS ACPI<br>
                tables contain correct UART descriptions.<br>
              </font> <font face=3D"monospace"><br>
                - Stefan<br>
              </font> <font face=3D"monospace"><br>
              </font> </blockquote>
          </div>
        </div>
      </blockquote>
      <font face=3D"monospace">Warner: thanks for the quick reply. Not so
        really, really old in my view - the BIOS=C2=A0is from ~August 2022
        (APU1). And yes, it uses coreboot:<br>
        =C2=A0=C2=A0=C2=A0 PC Engines apu1<br>
        =C2=A0=C2=A0=C2=A0 coreboot build 20220822<br>
        =C2=A0=C2=A0=C2=A0 BIOS version v4.17.0.3<br>
        =C2=A0=C2=A0=C2=A0 SeaBIOS (version rel-1.16.0.1-0-g77603a32)<br>
        <br>
        From verbose boot, dmesg -a:<br>
        - APU1, original/faulty from today:=C2=A0<a moz-do-not-send=3D"tru=
e"
href=3D"https://hegnauer.selfhost.eu/web/computing/apu1c4_3mdeb_v4_17_0_3_=
std.txt"
          class=3D"moz-txt-link-freetext">https://hegnauer.selfhost.eu/web=
/computing/apu1c4_3mdeb_v4_17_0_3_std.txt</a><br>
        - APU1, fixed in loader.conf.local:=C2=A0<a moz-do-not-send=3D"tru=
e"
href=3D"https://hegnauer.selfhost.eu/web/computing/apu1c4_3mdeb_v4_17_0_3_=
fixed.txt"
          class=3D"moz-txt-link-freetext">https://hegnauer.selfhost.eu/web=
/computing/apu1c4_3mdeb_v4_17_0_3_fixed.txt</a><br>
        - APU2 (has no problems): <a moz-do-not-send=3D"true"
href=3D"https://hegnauer.selfhost.eu/web/computing/apu2d4_3mdeb_v4_19_0_1.=
txt"
          class=3D"moz-txt-link-freetext">https://hegnauer.selfhost.eu/web=
/computing/apu2d4_3mdeb_v4_19_0_1.txt</a><br>
        <br>
        Let me know if you need additional information.<br>
        <br>
        - Stefan<br>
      </font> </blockquote>
    <br>
    For the record, APU1 is<br>
    =C2=A0=C2=A0=C2=A0 root@stratum:~ # freebsd-version ; uname -a<br>
    =C2=A0=C2=A0=C2=A0 14.1-STABLE<br>
    =C2=A0=C2=A0=C2=A0 FreeBSD stratum.localnet 14.1-STABLE FreeBSD 14.1-S=
TABLE
    stable/14-n269015-013d817b5393 STRATUM amd64<br>
    <br>
    and APU2:<br>
    =C2=A0=C2=A0=C2=A0 root@apupf:~ # freebsd-version ; uname -a<br>
    =C2=A0=C2=A0=C2=A0 14.1-STABLE<br>
    =C2=A0=C2=A0=C2=A0 FreeBSD apupf.localnet 14.1-STABLE FreeBSD 14.1-STA=
BLE
    stable/14-n269015-013d817b5393 APUPF amd64<br>
    <br>
    <br>
    <br>
  </body>
</html>

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