[Bug 267028] kernel panics when booting with both (zfs,ko or vboxnetflt,ko or acpi_wmi.ko) and amdgpu.ko

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 17 May 2023 22:13:48 UTC

--- Comment #174 from George Mitchell <george@m5p.com> ---
Since my last note on April 27, I have been booting up in this manner:

1. Boot to single user mode.
2. Run a script that loads amdgpu.ko, zfs.ko, vboxnetflt.ko, and acpi-wmi.ko in
immediate succession.
3. Exit to multiuser mode.

In the course of roughly 50-60 bootups, there have been only two crashes during
single user mode, but regrettably they leave no trace because the root
partition is still mounted read-only.  At least I think that's why there's no
dump.  So something about single-user mode makes the crash much less likely to
occur.  Anyway, jumping through these hoops does enable me to run my graphics
with the improved driver.

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