[Bug 239143] kernel panic on boot due to missing domain ivar on acpi0

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239143

            Bug ID: 239143
           Summary: kernel panic on boot due to missing domain ivar on
                    acpi0
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: jwmaag at gmail.com

Created attachment 205693
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=205693&action=edit
acpidump

It seems as though my computer is tripping the KASSERTs introduced in commit
349571

A working system prints the following errors.

ivhd0: <AMD-Vi/IOMMU ivhd with EFR> on acpi0
ivhd0: Flag:b0<IotlbSup,Coherent>
ivhd0: Features(type:0x11) MsiNumPPR = 0 PNBanks= 2 PNCounters= 0
ivhd0: Extended features[31:0]:22294ada<PPRSup,NXSup,GTSup,IASup> HATS = 0x2
GATS = 0x0 GLXSup = 0x1 SmiFSup = 0x1 SmiFRC = 0x2 GAMSup = 0x1 DualPortLogSup
= 0x2 DualEventLogSup = 0x2
ivhd0: Extended features[62:32]:f77ef<USSup> Max PASID: 0x2f DevTblSegSup = 0x3
MarcSup = 0x1
ivhd0: supported paging level:7, will use only: 4
ivhd0: device range: 0x0 - 0xffff
ivhd0: PCI cap 0x190b640f at 0x40 feature:19<IOTLB,EFR,CapExt>
ivhd0: failed to read ivar PCI_IVAR_DOMAIN on bus acpi0, error = 2
acpi0: failed to read ivar PCIB_IVAR_BUS on bus nexus0, error = 6
ivhd0: failed to read ivar PCI_IVAR_DOMAIN on bus acpi0, error = 2
acpi0: failed to read ivar PCIB_IVAR_BUS on bus nexus0, error = 6

The panic on the failing kernel

panic: pci_get_domain failed for ivhd0 on bus acpi0, error = 2
cpuid = 2
time = 1

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