[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: Sun, 12 Mar 2023 23:13:57 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267028

--- Comment #122 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to George Mitchell from comment #117)

Would it be reasonable to have some testing with amdgpu.ko
loaded but never having a desktop environment active?

Or, may be I should form the idea as questions: What is
the minimal form of having amdgpu.ko loaded in the system?
Can that be tested (if it has not been already)? Does this
minimal form behave any differently than more involved
use of amdgpu.ko (and the associated card firmware)?

In a different direction . . .

In/for a separate context, I once built amdgpu and its
firmware and installed it. But I did not set up an
automatic load. For the rare test, I manually loaded
amdgpu and then started lumina. (It is an old memory. I
might not have the details correct.) This procedure might
have largely avoided later loads of kernel modules and,
so, avoided discovering a problem.

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