[Bug 2007768] Re: [Mac Mini 6,2] ACPI Errors when booting Ubuntu.

[sanctimon]

** Package changed: ubuntu => grub2 (Ubuntu)

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/2007768

Title:
  [Mac Mini 6,2] ACPI Errors when booting Ubuntu.

Status in grub2 package in Ubuntu:
  New

Bug description:
  The following warnings and errors significantly delay boot on Mac Mini
  6,2 (Intel, late 2012):

  DMAR-IR: [Firmware Bug]: ioapic 2 has no mapping iommu, interrupt remapping will be disabled
  ACPI Error: Needed type [Reference], found [Integer] 000000002b60be2b (20220331/exresop-66)
  [  +0.000000] ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [Store] (20220331/dswexec-431)
  [  +0.000000] ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20220331/psparse-529)

  These stay on screen for at least 15 - 25 seconds before actually
  booting.

  Description:	Ubuntu 22.04.2 LTS
  Release:	22.04

  The ACPI dump file contains more than 200 errors:

  Maximum error count (200) exceeded
  Table Input:   acpidump.txt -  211185 bytes      0 fields        0 source lines
  Binary Output: (null) -       0 bytes

  Compilation failed. 201 Errors, 0 Warnings, 0 Remarks

  Examples: ERROR at line 2743: Unterminated quoted string

  Maximum error count (200) exceeded
  acpidump.txt      2:     0000: 53 53 44 54 59 01 00 00 02 53 41 50 50 4C 45 20  SSDTY....SAPPLE 
  Error    6313 -               ^ Invalid field label detected (found "0000" expected "Signature")

  acpidump.txt      2:     0000: 53 53 44 54 59 01 00 00 02 53 41 50 50 4C 45 20  SSDTY....SAPPLE 
  Error    6123 -               ^ String literal too long (Maximum 4 characters, found 64 characters [53 53 44 54 59 01 00 00 02 53 41 50 50 4C 45 20  SSDTY....SAPPLE])

  acpidump.txt      3:     0010: 49 47 48 64 61 00 00 00 00 10 00 00 49 4E 54 4C  IGHda.......INTL
  Error    6313 -               ^ Invalid field label detected (found "0010" expected "Table Length")

  acpidump.txt      3:     0010: 49 47 48 64 61 00 00 00 00 10 00 00 49 4E 54 4C  IGHda.......INTL
  Error    6126 -  syntax error ^

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2007768/+subscriptions