[Bug 285051] [bhyve] ampere emag freezes after kldload vmm, reboot needed not even a panic

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 26 Feb 2025 11:55:43 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285051

            Bug ID: 285051
           Summary: [bhyve] ampere emag freezes after kldload vmm, reboot
                    needed not even a panic
           Product: Base System
           Version: Unspecified
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bhyve
          Assignee: virtualization@FreeBSD.org
          Reporter: dch@freebsd.org

Created attachment 257995
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=257995&action=edit
ampere emag dmesg

CURRENT, 3b60c193fc8e (upstream/main) RELNOTES: Add 02d4eeabfd73 note

running `kldload vmm` over ssh results in machine freezing.

# console

```
FreeBSD/arm64 (straylight.skunkwerks.at) (ttyu0)

login: << now we run kldload vmm in ssh session >>
vgic0: <Virtual GIC v3> on gic0
```

The machine needs a power cycle to continue, no /var/crash left either.

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