BIOS Error (bug) during boot

Every time I boot my 9.3 system a number of messages flash by.
They disappear too quickly to read on screen but I managed to make a video which shows a series of errors of the form:
0.115128 ACPI BIOS Error (bug): Failure creating named object [_SB.PC00.X.RHUB.SS05._PLD,AE_ALREADY_EXISTS (20221020/DWSLOAD2-326)
[43621] ACPI Error AE_ALREADY_EXISTS, During name lookup/catalog (202210-object-220)

Then
[ 0.594255] integrity: Problem loading X.509 certificate -126

They don’t seem to any harm and the boot and subsequent processing proceed as if nothing had happened.
I’m just curious as to the cause.

Using a tool like journctl or dmesg will let you see the sequence of those errors. Which you could then copy and paste fragments into your browser as search terms to get a better understanding.

journalctl -b 0
or
dmesg | less

will get you scrollable output.

I’m also getting these errors and also has not seemed to be affecting anything…

So x.509 wise, logs show this:

Apr 11 17:25:30 localhost kernel: Loading compiled-in X.509 certificates
Apr 11 17:25:30 localhost kernel: Loaded X.509 cert 'Rocky kernel signing key: 4d2b1020fffc9503b86f8624f149a91811fde20b'
Apr 11 17:25:30 localhost kernel: Loaded X.509 cert 'Rocky Enterprise Software Foundation: Rocky Linux Driver Signing Cert 101: ce537f0c615c038114acbb01233a5b62b93a1971'
Apr 11 17:25:30 localhost kernel: Loaded X.509 cert 'Rocky Enterprise Software Foundation: Rocky Linux Driver Signing Cert 101 (aarch64): 27049f986744cc3d6a729d084fea189a8a4162ae'
Apr 11 17:25:30 localhost kernel: Loaded X.509 cert 'Rocky Enterprise Software Foundation: Rocky Linux IMA CA: 1d1cda4d16acd5196226d19e1fdb2c2761d12c4d'
Apr 11 17:25:30 localhost kernel: zswap: loaded using pool lzo/zbud
Apr 11 17:25:30 localhost kernel: page_owner is disabled
Apr 11 17:25:30 localhost kernel: Key type big_key registered
Apr 11 17:25:30 localhost kernel: Key type encrypted registered
Apr 11 17:25:30 localhost kernel: integrity: Loading X.509 certificate: UEFI:MokListRT (MOKvar table)
Apr 11 17:25:30 localhost kernel: integrity: Problem loading X.509 certificate -126
Apr 11 17:25:30 localhost kernel: integrity: Loading X.509 certificate: UEFI:MokListRT (MOKvar table)
Apr 11 17:25:30 localhost kernel: integrity: Loaded X.509 cert 'Rocky Enterprise Software Foundation: Rocky Linux Secure Boot Root CA: 4c2c6bd7d64ee81581cab8e986661f65e2166fc4'
Apr 11 17:25:30 localhost kernel: ima: No TPM chip found, activating TPM-bypass!
Apr 11 17:25:30 localhost kernel: Loading compiled-in module X.509 certificates
Apr 11 17:25:30 localhost kernel: Loaded X.509 cert 'Rocky kernel signing key: 4d2b1020fffc9503b86f8624f149a91811fde20b'

And the earlier messages are with this context:

Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Module Device)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Processor Device)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(3.0 _SCP Extensions)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Processor Aggregator Device)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Linux-Dell-Video)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
Apr 11 18:24:38 localhost kernel: ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
Apr 11 18:24:38 localhost kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.XHCI.RHUB.HS04._UPC], AE_ALREADY_EXISTS (20221020/dswload2-326)
Apr 11 18:24:38 localhost kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20221020/psobject-220)
Apr 11 18:24:38 localhost kernel: ACPI: Skipping parse of AML opcode: OpcodeName unavailable (0x0014)
Apr 11 18:24:38 localhost kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.XHCI.RHUB.HS04._PLD], AE_ALREADY_EXISTS (20221020/dswload2-326)
Apr 11 18:24:38 localhost kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20221020/psobject-220)
Apr 11 18:24:38 localhost kernel: ACPI: Skipping parse of AML opcode: OpcodeName unavailable (0x0014)
Apr 11 18:24:38 localhost kernel: ACPI: 14 ACPI AML tables successfully acquired and loaded