[Bug 295886] intel a380 discrete gpu cause freebsd to reboot automatically

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295886

            Bug ID: 295886
           Summary: intel a380 discrete gpu cause freebsd to reboot
                    automatically
           Product: Base System
           Version: 15.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: lbfoo@disroot.org

Created attachment 271539
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=271539&action=edit
boot screen logs

platform: dell precision T7960
discrete graphic card: Gunnir intel arc a380 6G

Loading process hangs after boot splash screen then reboot, last few lines may
be related to the problem:

MCA: Bank 6, Status 0xba00000000000e0b
MCA: Global Cap 0x000000000f001c15, Status 0x0000000000000005
MCA: Bank 6, Status 0xba00000000000e0b
MCA: Global Cap 0x000000000f001c15, Status 0x0000000000000005
MCA: Vendor "GenuineIntel", ID 0x806f8, APIC ID 14
MCH: CPU 14 UNCOR EN PCC generic 1/0 error (pci0:51:1:0)
MCA: Misc 0x33080000
MCA: B 

It will boot smoothly after Gunnir intel arc a380 6G discrete graphic card was
unplugged from computer.

I'm curious if some of my boot config cause the problem. So I boot the system
from freebsd 15.0 release liveCD. But it also failed to boot with above logs.

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